USA: California
Counties
The population of all counties in California by census years.
| Name | Status | Population Census 1990-04-01 | Population Census 2000-04-01 | Population Census 2010-04-01 | Population Census 2020-04-01 | |
|---|---|---|---|---|---|---|
| Alameda | County | 1,279,182 | 1,443,741 | 1,510,271 | 1,682,349 | → |
| Alpine | County | 1,113 | 1,208 | 1,175 | 1,202 | → |
| Amador | County | 30,039 | 35,100 | 38,091 | 40,471 | → |
| Butte | County | 182,120 | 203,171 | 220,000 | 211,630 | → |
| Calaveras | County | 31,998 | 40,554 | 45,578 | 45,284 | → |
| Colusa | County | 16,275 | 18,804 | 21,419 | 21,836 | → |
| Contra Costa | County | 803,732 | 948,816 | 1,049,025 | 1,165,930 | → |
| Del Norte | County | 23,460 | 27,507 | 28,610 | 27,745 | → |
| El Dorado | County | 125,995 | 156,299 | 181,058 | 191,189 | → |
| Fresno | County | 667,490 | 799,407 | 930,450 | 1,008,646 | → |
| Glenn | County | 24,798 | 26,453 | 28,122 | 28,921 | → |
| Humboldt | County | 119,118 | 126,518 | 134,623 | 136,462 | → |
| Imperial | County | 109,303 | 142,361 | 174,528 | 179,713 | → |
| Inyo | County | 18,281 | 17,945 | 18,546 | 19,018 | → |
| Kern | County | 543,477 | 661,645 | 839,631 | 909,229 | → |
| Kings | County | 101,469 | 129,461 | 152,982 | 152,486 | → |
| Lake | County | 50,631 | 58,309 | 64,665 | 68,160 | → |
| Lassen | County | 27,598 | 33,828 | 34,895 | 32,733 | → |
| Los Angeles | County | 8,863,164 | 9,519,338 | 9,818,605 | 10,013,976 | → |
| Madera | County | 88,090 | 123,109 | 150,865 | 156,258 | → |
| Marin | County | 230,096 | 247,289 | 252,409 | 262,321 | → |
| Mariposa | County | 14,302 | 17,130 | 18,251 | 17,126 | → |
| Mendocino | County | 80,345 | 86,265 | 87,841 | 91,590 | → |
| Merced | County | 178,403 | 210,554 | 255,793 | 281,205 | → |
| Modoc | County | 9,678 | 9,449 | 9,686 | 8,703 | → |
| Mono | County | 9,956 | 12,853 | 14,202 | 13,201 | → |
| Monterey | County | 355,660 | 401,762 | 415,057 | 439,035 | → |
| Napa | County | 110,765 | 124,279 | 136,484 | 138,013 | → |
| Nevada | County | 78,510 | 92,033 | 98,764 | 102,237 | → |
| Orange | County | 2,410,556 | 2,846,289 | 3,010,232 | 3,186,997 | → |
| Placer | County | 172,796 | 248,399 | 348,432 | 404,745 | → |
| Plumas | County | 19,739 | 20,824 | 20,007 | 19,794 | → |
| Riverside | County | 1,170,413 | 1,545,387 | 2,189,641 | 2,418,182 | → |
| Sacramento | County | 1,041,219 | 1,223,499 | 1,418,788 | 1,585,045 | → |
| San Benito | County | 36,697 | 53,234 | 55,269 | 64,210 | → |
| San Bernardino | County | 1,418,380 | 1,709,434 | 2,035,210 | 2,181,660 | → |
| San Diego | County | 2,498,016 | 2,813,833 | 3,095,313 | 3,298,648 | → |
| San Francisco | County | 723,959 | 776,733 | 805,235 | 873,950 | → |
| San Joaquin | County | 480,628 | 563,598 | 685,306 | 779,230 | → |
| San Luis Obispo | County | 217,162 | 246,681 | 269,637 | 282,443 | → |
| San Mateo | County | 649,623 | 707,161 | 718,451 | 764,432 | → |
| Santa Barbara | County | 369,608 | 399,347 | 423,895 | 448,220 | → |
| Santa Clara | County | 1,497,577 | 1,682,585 | 1,781,642 | 1,936,279 | → |
| Santa Cruz | County | 229,734 | 255,602 | 262,382 | 270,870 | → |
| Shasta | County | 147,036 | 163,256 | 177,223 | 182,158 | → |
| Sierra | County | 3,318 | 3,555 | 3,240 | 3,231 | → |
| Siskiyou | County | 43,531 | 44,301 | 44,900 | 44,077 | → |
| Solano | County | 340,421 | 394,542 | 413,344 | 453,491 | → |
| Sonoma | County | 388,222 | 458,614 | 483,878 | 488,850 | → |
| Stanislaus | County | 370,522 | 446,997 | 514,453 | 552,882 | → |
| Sutter | County | 64,415 | 78,930 | 94,737 | 99,636 | → |
| Tehama | County | 49,625 | 56,039 | 63,463 | 65,832 | → |
| Trinity | County | 13,063 | 13,022 | 13,786 | 16,114 | → |
| Tulare | County | 311,921 | 368,021 | 442,179 | 473,116 | → |
| Tuolumne | County | 48,456 | 54,501 | 55,365 | 55,624 | → |
| Ventura | County | 669,016 | 753,197 | 823,318 | 843,840 | → |
| Yolo | County | 141,092 | 168,660 | 200,849 | 216,409 | → |
| Yuba | County | 58,228 | 60,219 | 72,155 | 81,578 | → |
| California | State | 29,760,021 | 33,871,648 | 37,253,956 | 39,538,212 |
Contents: Places
The population of all places in California by census years.
| Name | Status | County | Population Census 1990-04-01 | Population Census 2000-04-01 | Population Census 2010-04-01 | Population Census 2020-04-01 | |
|---|---|---|---|---|---|---|---|
| Acalanes Ridge | Census-Designated Place | Contra Costa | 1,185 | 1,221 | 1,137 | 1,285 | → |
| Acampo | Census-Designated Place | San Joaquin | 259 | 187 | 341 | 334 | → |
| Acton | Census-Designated Place | Los Angeles | 4,249 | 6,446 | 7,596 | 7,431 | → |
| Adelanto | City | San Bernardino | 6,862 | 18,135 | 31,760 | 38,035 | → |
| Adin | Census-Designated Place | Modoc | 179 | 209 | 252 | 205 | → |
| Agoura Hills | City | Los Angeles | 20,461 | 20,466 | 20,336 | 20,296 | → |
| Agua Dulce | Census-Designated Place | Los Angeles | 2,661 | 2,561 | 3,342 | 3,451 | → |
| Aguanga | Census-Designated Place | Riverside | 649 | 434 | 1,128 | 989 | → |
| Ahwahnee | Census-Designated Place | Madera | 1,367 | 2,348 | 2,246 | 2,296 | → |
| Airport | Census-Designated Place | Stanislaus | 1,655 | 1,638 | 1,635 | 1,389 | → |
| Alameda | City | Alameda | 73,986 | 72,258 | 73,812 | 78,285 | → |
| Alamo | Census-Designated Place | Contra Costa | 10,614 | 10,477 | 14,570 | 15,314 | → |
| Albany | City | Alameda | 16,316 | 16,474 | 18,595 | 20,270 | → |
| Albion | Census-Designated Place | Mendocino | 309 | 249 | 168 | 153 | → |
| Alderpoint | Census-Designated Place | Humboldt | 90 | 136 | 186 | 137 | → |
| Alhambra | City | Los Angeles | 82,129 | 85,035 | 83,073 | 82,863 | → |
| Alhambra Valley | Census-Designated Place | Contra Costa | 425 | 460 | 725 | 805 | → |
| Aliso Viejo | City | Orange | 6,605 | 39,194 | 47,668 | 52,173 | → |
| Alleghany | Census-Designated Place | Sierra | ... | 29 | 58 | 30 | → |
| Allendale | Census-Designated Place | Solano | 1,561 | 1,572 | 1,506 | 1,651 | → |
| Allensworth | Census-Designated Place | Tulare | 171 | 339 | 471 | 531 | → |
| Almanor | Census-Designated Place | Plumas | ... | ... | ... | 3 | → |
| Alondra Park | Census-Designated Place | Los Angeles | 7,773 | 8,622 | 8,592 | 8,569 | → |
| Alpaugh | Census-Designated Place | Tulare | 459 | 582 | 796 | 871 | → |
| Alpine | Census-Designated Place | San Diego | 9,695 | 13,143 | 14,236 | 14,696 | → |
| Alpine Village | Census-Designated Place | Alpine | 137 | 145 | 136 | 224 | → |
| Alta | Census-Designated Place | Placer | 498 | 627 | 610 | 615 | → |
| Alta Sierra | Census-Designated Place | Kern | 54 | 66 | 85 | 103 | → |
| Alta Sierra | Census-Designated Place | Nevada | 5,709 | 6,522 | 6,911 | 7,204 | → |
| Altadena | Census-Designated Place | Los Angeles | 42,658 | 42,610 | 42,777 | 42,846 | → |
| Alto | Census-Designated Place | Marin | 736 | 725 | 711 | 732 | → |
| Alturas | City | Modoc | 2,998 | 2,904 | 2,830 | 2,708 | → |
| Alum Rock | Census-Designated Place | Santa Clara | 8,203 | 9,937 | 10,589 | 12,042 | → |
| Amador City | City | Amador | 196 | 186 | 187 | 198 | → |
| Amador Pines | Census-Designated Place | Amador | 774 | 931 | 986 | 1,118 | → |
| American Canyon | City | Napa | 7,622 | 9,832 | 19,560 | 21,839 | → |
| Amesti | Census-Designated Place | Santa Cruz | 2,473 | 2,436 | 2,631 | 2,637 | → |
| Anaheim | City | Orange | 266,229 | 327,920 | 336,332 | 346,810 | → |
| Anchor Bay | Census-Designated Place | Mendocino | 272 | 294 | 340 | 473 | → |
| Anderson | City | Shasta | 8,393 | 9,118 | 9,963 | 11,326 | → |
| Angels | City | Calaveras | 2,601 | 3,013 | 3,805 | 3,660 | → |
| Angwin | Census-Designated Place | Napa | 3,503 | 3,148 | 3,051 | 2,633 | → |
| Antelope | Census-Designated Place | Sacramento | 14,135 | 37,204 | 45,770 | 48,733 | → |
| Antioch | City | Contra Costa | 62,125 | 90,924 | 102,745 | 115,304 | → |
| Anza | Census-Designated Place | Riverside | 1,880 | 2,311 | 3,014 | 3,075 | → |
| Apple Valley | Town | San Bernardino | 46,146 | 54,249 | 69,146 | 75,784 | → |
| Aptos | Census-Designated Place | Santa Cruz | 5,834 | 6,207 | 6,220 | 6,664 | → |
| Aptos Hills-Larkin Valley | Census-Designated Place | Santa Cruz | 2,205 | 2,361 | 2,381 | 2,383 | → |
| Arbuckle | Census-Designated Place | Colusa | 1,929 | 2,332 | 3,028 | 3,484 | → |
| Arcadia | City | Los Angeles | 48,741 | 52,883 | 56,242 | 56,673 | → |
| Arcata | City | Humboldt | 15,409 | 16,578 | 17,405 | 18,849 | → |
| Arden-Arcade | Census-Designated Place | Sacramento | 79,646 | 83,453 | 82,269 | 94,659 | → |
| Armona | Census-Designated Place | Kings | 3,122 | 3,239 | 4,156 | 4,274 | → |
| Arnold | Census-Designated Place | Calaveras | 3,414 | 3,735 | 3,179 | 3,288 | → |
| Aromas | Census-Designated Place | San Benito / Monterey | 2,275 | 2,797 | 2,650 | 2,708 | → |
| Arroyo Grande | City | San Luis Obispo | 14,474 | 15,867 | 17,278 | 18,433 | → |
| Artesia | City | Los Angeles | 15,451 | 16,361 | 16,522 | 16,395 | → |
| Artois | Census-Designated Place | Glenn | 199 | 146 | 295 | 295 | → |
| Arvin | City | Kern | 9,331 | 12,941 | 19,302 | 19,504 | → |
| Ashland | Census-Designated Place | Alameda | 16,590 | 20,793 | 21,925 | 23,823 | → |
| Aspen Springs | Census-Designated Place | Mono | 148 | 33 | 65 | 70 | → |
| Atascadero | City | San Luis Obispo | 23,910 | 26,490 | 28,306 | 29,777 | → |
| Atherton | Town | San Mateo | 8,209 | 7,160 | 6,940 | 7,185 | → |
| Atwater | City | Merced | 22,452 | 23,191 | 28,552 | 31,975 | → |
| Auberry | Census-Designated Place | Fresno | 2,704 | 3,129 | 3,628 | 3,238 | → |
| Auburn | City | Placer | 10,834 | 12,672 | 13,313 | 13,790 | → |
| Auburn Lake Trails | Census-Designated Place | El Dorado | 2,236 | 2,901 | 3,426 | 3,388 | → |
| August | Census-Designated Place | San Joaquin | 6,034 | 7,808 | 8,390 | 8,628 | → |
| Avalon | City | Los Angeles | 3,002 | 3,316 | 3,728 | 3,455 | → |
| Avenal | City | Kings | 9,764 | 14,415 | 15,504 | 13,694 | → |
| Avery | Census-Designated Place | Calaveras | 455 | 465 | 577 | 636 | → |
| Avila Beach | Census-Designated Place | San Luis Obispo | 654 | 1,112 | 1,627 | 1,576 | → |
| Avocado Heights | Census-Designated Place | Los Angeles | 12,812 | 13,283 | 13,829 | 13,317 | → |
| Azusa | City | Los Angeles | 40,819 | 44,520 | 46,574 | 50,349 | → |
| Baker | Census-Designated Place | San Bernardino | ... | 504 | 735 | 442 | → |
| Bakersfield | City | Kern | 187,662 | 249,629 | 347,783 | 404,368 | → |
| Bakersfield Country Club | Census-Designated Place | Kern | 1,608 | 1,547 | 1,595 | 1,715 | → |
| Baldwin Park | City | Los Angeles | 69,344 | 75,681 | 75,397 | 72,191 | → |
| Ballard | Census-Designated Place | Santa Barbara | 603 | 586 | 752 | 768 | → |
| Ballico | Census-Designated Place | Merced | 271 | 296 | 406 | 347 | → |
| Bangor | Census-Designated Place | Butte | 375 | 304 | 646 | 695 | → |
| Banning | City | Riverside | 20,631 | 23,535 | 28,684 | 29,515 | → |
| Barstow | City | San Bernardino | 24,428 | 22,739 | 22,747 | 25,409 | → |
| Bass Lake | Census-Designated Place | Madera | 538 | 493 | 527 | 575 | → |
| Bay Point | Census-Designated Place | Contra Costa | 17,355 | 21,534 | 21,349 | 23,896 | → |
| Bayview | Census-Designated Place | Contra Costa | 1,584 | 1,745 | 1,754 | 1,782 | → |
| Bayview | Census-Designated Place | Humboldt | 1,318 | 2,359 | 2,510 | 2,619 | → |
| Baywood Park | Census-Designated Place | San Mateo | 1,636 | 1,756 | 1,652 | 1,693 | → |
| Beale AFB | Census-Designated Place | Yuba | 6,912 | 5,115 | 1,319 | 1,303 | → |
| Bear Creek | Census-Designated Place | Merced | ... | 218 | 290 | 273 | → |
| Bear Valley | Census-Designated Place | Alpine | 199 | 133 | 121 | 128 | → |
| Bear Valley | Census-Designated Place | Mariposa | 69 | 42 | 49 | 156 | → |
| Bear Valley Springs | Census-Designated Place | Kern | 2,711 | 3,802 | 5,172 | 5,592 | → |
| Beaumont | City | Riverside | 10,317 | 11,608 | 36,932 | 53,055 | → |
| Beckwourth | Census-Designated Place | Plumas | 227 | 342 | 432 | 478 | → |
| Belden | Census-Designated Place | Plumas | ... | 26 | 22 | 15 | → |
| Bell | City | Los Angeles | 34,266 | 36,649 | 35,469 | 33,561 | → |
| Bell Canyon | Census-Designated Place | Ventura | 1,088 | 1,773 | 2,049 | 1,946 | → |
| Bell Gardens | City | Los Angeles | 42,319 | 44,075 | 42,058 | 39,513 | → |
| Bella Vista | Census-Designated Place | Shasta | 3,052 | 3,325 | 3,523 | 3,641 | → |
| Bellflower | City | Los Angeles | 61,848 | 73,150 | 76,625 | 79,213 | → |
| Belmont | City | San Mateo | 24,049 | 25,168 | 25,900 | 28,335 | → |
| Belvedere | City | Marin | 2,148 | 2,089 | 2,071 | 2,131 | → |
| Ben Lomond | Census-Designated Place | Santa Cruz | 6,543 | 6,647 | 6,234 | 6,337 | → |
| Benbow | Census-Designated Place | Humboldt | 66 | 83 | 321 | 422 | → |
| Bend | Census-Designated Place | Tehama | 565 | 565 | 619 | 603 | → |
| Benicia | City | Solano | 24,464 | 26,846 | 27,035 | 27,135 | → |
| Benton | Census-Designated Place | Mono | 132 | 211 | 280 | 279 | → |
| Benton Park | Census-Designated Place | Kern | 3,986 | 4,708 | 4,862 | 5,333 | → |
| Berkeley | City | Alameda | 102,734 | 102,653 | 112,443 | 124,320 | → |
| Bermuda Dunes | Census-Designated Place | Riverside | 4,571 | 6,229 | 7,282 | 8,244 | → |
| Berry Creek | Census-Designated Place | Butte | 1,209 | 1,256 | 1,424 | 1,637 | → |
| Bertsch-Oceanview | Census-Designated Place | Del Norte | 1,619 | 2,238 | 2,436 | 2,520 | → |
| Bethel Island | Census-Designated Place | Contra Costa | 2,115 | 2,312 | 2,137 | 2,131 | → |
| Beverly Hills | City | Los Angeles | 32,038 | 33,515 | 33,923 | 32,699 | → |
| Bieber | Census-Designated Place | Lassen | 312 | 215 | 337 | 266 | → |
| Big Bear City | Census-Designated Place | San Bernardino | 8,593 | 11,204 | 12,304 | 12,738 | → |
| Big Bear Lake | City | San Bernardino | 5,455 | 5,424 | 5,039 | 5,038 | → |
| Big Bend (Madhesi Valley) | Census-Designated Place | Shasta | 51 | 149 | 102 | 79 | → |
| Big Creek | Census-Designated Place | Fresno | 250 | 258 | 175 | 151 | → |
| Big Lagoon | Census-Designated Place | Humboldt | 41 | 36 | 93 | 161 | → |
| Big Pine | Census-Designated Place | Inyo | 1,610 | 1,812 | 1,756 | 1,875 | → |
| Big River | Census-Designated Place | San Bernardino | 705 | 1,266 | 1,327 | 1,084 | → |
| Biggs | City | Butte | 1,541 | 1,771 | 1,701 | 1,968 | → |
| Biola | Census-Designated Place | Fresno | 963 | 1,037 | 1,623 | 1,427 | → |
| Bishop | City | Inyo | 3,470 | 3,590 | 3,879 | 3,824 | → |
| Black Point-Green Point | Census-Designated Place | Marin | 1,267 | 1,366 | 1,306 | 1,431 | → |
| Blackhawk | Census-Designated Place | Contra Costa | 2,869 | 6,743 | 9,354 | 9,637 | → |
| Blacklake | Census-Designated Place | San Luis Obispo | 367 | 682 | 930 | 1,016 | → |
| Blairsden | Census-Designated Place | Plumas | 78 | 50 | 39 | 38 | → |
| Bloomfield | Census-Designated Place | Sonoma | 310 | 427 | 345 | 338 | → |
| Bloomington | Census-Designated Place | San Bernardino | 15,116 | 19,318 | 23,851 | 24,339 | → |
| Blue Lake | City | Humboldt | 1,261 | 1,124 | 1,251 | 1,214 | → |
| Bluewater | Census-Designated Place | San Bernardino | 261 | 265 | 172 | 116 | → |
| Blythe | City | Riverside | 10,856 | 12,398 | 20,898 | 18,306 | → |
| Bodega | Census-Designated Place | Sonoma | 161 | 283 | 220 | 211 | → |
| Bodega Bay | Census-Designated Place | Sonoma | 1,127 | 1,423 | 1,077 | 912 | → |
| Bodfish | Census-Designated Place | Kern | 1,390 | 1,823 | 1,956 | 2,008 | → |
| Bolinas | Census-Designated Place | Marin | 1,361 | 1,506 | 1,620 | 1,483 | → |
| Bombay Beach | Census-Designated Place | Imperial | 328 | 366 | 295 | 231 | → |
| Bonadelle Ranchos | Census-Designated Place | Madera | 2,682 | 3,883 | 5,023 | 5,497 | → |
| Bonita | Census-Designated Place | San Diego | 12,542 | 12,401 | 12,538 | 12,917 | → |
| Bonny Doon | Census-Designated Place | Santa Cruz | 2,157 | 2,630 | 2,678 | 2,868 | → |
| Bonsall | Census-Designated Place | San Diego | 3,044 | 3,401 | 3,982 | 4,546 | → |
| Boonville | Census-Designated Place | Mendocino | 822 | 947 | 1,035 | 1,018 | → |
| Bootjack | Census-Designated Place | Mariposa | 332 | 402 | 567 | 661 | → |
| Boron | Census-Designated Place | Kern | 2,903 | 2,025 | 2,253 | 2,086 | → |
| Boronda | Census-Designated Place | Monterey | 707 | 1,325 | 1,710 | 1,760 | → |
| Borrego Springs | Census-Designated Place | San Diego | 2,244 | 2,535 | 3,429 | 3,073 | → |
| Bostonia | Census-Designated Place | San Diego | 13,670 | 15,169 | 15,379 | 16,882 | → |
| Boulder Creek | Census-Designated Place | Santa Cruz | 5,566 | 5,571 | 4,923 | 5,429 | → |
| Boulevard | Census-Designated Place | San Diego | 182 | 322 | 315 | 359 | → |
| Bowles | Census-Designated Place | Fresno | 197 | 182 | 166 | 158 | → |
| Boyes Hot Springs | Census-Designated Place | Sonoma | 4,997 | 6,665 | 6,656 | 6,215 | → |
| Bradbury | City | Los Angeles | 850 | 863 | 1,047 | 925 | → |
| Bradley | Census-Designated Place | Monterey | 66 | 120 | 93 | 69 | → |
| Brawley | City | Imperial | 18,995 | 22,038 | 24,977 | 26,521 | → |
| Brea | City | Orange | 33,193 | 35,556 | 39,195 | 47,300 | → |
| Brentwood | City | Contra Costa | 8,968 | 24,076 | 51,627 | 64,291 | → |
| Bret Harte | Census-Designated Place | Stanislaus | 4,056 | 5,161 | 5,152 | 5,135 | → |
| Bridgeport | Census-Designated Place | Mono | 328 | 488 | 575 | 553 | → |
| Brisbane | City | San Mateo | 2,940 | 3,615 | 4,273 | 4,853 | → |
| Broadmoor | Census-Designated Place | San Mateo | 3,946 | 4,026 | 4,176 | 4,411 | → |
| Brookdale | Census-Designated Place | Santa Cruz | 1,767 | 1,777 | 1,991 | 2,043 | → |
| Brooks | Census-Designated Place | Yolo | 55 | 44 | 11 | 31 | → |
| Brooktrails | Census-Designated Place | Mendocino | 2,017 | 2,722 | 3,235 | 3,632 | → |
| Buck Meadows | Census-Designated Place | Mariposa | ... | ... | 2 | 21 | → |
| Buckhorn | Census-Designated Place | Amador | 1,580 | 1,973 | 2,429 | 2,597 | → |
| Bucks Lake | Census-Designated Place | Plumas | ... | 17 | 10 | 22 | → |
| Buellton | City | Santa Barbara | 3,340 | 3,844 | 4,849 | 5,162 | → |
| Buena Park | City | Orange | 68,594 | 78,456 | 80,456 | 84,024 | → |
| Buena Vista | Census-Designated Place | Amador | ... | 276 | 429 | 542 | → |
| Burbank | City | Los Angeles | 93,632 | 100,317 | 103,360 | 107,334 | → |
| Burbank | Census-Designated Place | Santa Clara | 4,330 | 5,239 | 4,926 | 4,940 | → |
| Burlingame | City | San Mateo | 26,651 | 28,146 | 28,815 | 31,385 | → |
| Burney | Census-Designated Place | Shasta | 3,423 | 3,217 | 3,154 | 3,000 | → |
| Burnt Ranch | Census-Designated Place | Trinity | 154 | 177 | 281 | 250 | → |
| Butte Creek Canyon | Census-Designated Place | Butte | 958 | 1,143 | 1,086 | 780 | → |
| Butte Meadows | Census-Designated Place | Butte | 35 | 11 | 40 | 74 | → |
| Butte Valley | Census-Designated Place | Butte | 485 | 816 | 899 | 945 | → |
| Buttonwillow | Census-Designated Place | Kern | 1,301 | 1,266 | 1,508 | 1,337 | → |
| Byron | Census-Designated Place | Contra Costa | 904 | 1,147 | 1,277 | 1,140 | → |
| Bystrom | Census-Designated Place | Stanislaus | 3,022 | 3,617 | 4,008 | 3,957 | → |
| C-Road | Census-Designated Place | Plumas | 128 | 152 | 150 | 140 | → |
| Cabazon | Census-Designated Place | Riverside | 1,678 | 2,229 | 2,535 | 2,629 | → |
| Calabasas | City | Los Angeles | 14,713 | 21,114 | 23,471 | 23,236 | → |
| Calexico | City | Imperial | 19,123 | 27,207 | 38,573 | 38,616 | → |
| California City | City | Kern | 6,057 | 8,408 | 14,120 | 14,971 | → |
| California Hot Springs | Census-Designated Place | Tulare | ... | ... | 37 | 50 | → |
| California Pines | Census-Designated Place | Modoc | 76 | 287 | 520 | 473 | → |
| California Polytechnic State University | Census-Designated Place | San Luis Obispo | 2,101 | 1,989 | 2,855 | 8,583 | → |
| Calimesa | City | Riverside | 6,632 | 7,055 | 7,814 | 10,019 | → |
| Calipatria | City | Imperial | 2,701 | 3,189 | 7,694 | 6,662 | → |
| Calistoga | City | Napa | 4,534 | 5,141 | 5,168 | 5,228 | → |
| Callender | Census-Designated Place | San Luis Obispo | 802 | 772 | 1,262 | 1,282 | → |
| Calpella | Census-Designated Place | Mendocino | 850 | 671 | 679 | 799 | → |
| Calpine | Census-Designated Place | Sierra | 135 | 186 | 205 | 223 | → |
| Calwa | Census-Designated Place | Fresno | 1,537 | 1,909 | 2,052 | 1,776 | → |
| Camanche North Shore | Census-Designated Place | Amador | 457 | 396 | 979 | 1,070 | → |
| Camanche Village | Census-Designated Place | Amador | 72 | 127 | 847 | 964 | → |
| Camarillo | City | Ventura | 52,618 | 57,098 | 65,175 | 70,731 | → |
| Cambria | Census-Designated Place | San Luis Obispo | 5,382 | 6,232 | 6,032 | 5,678 | → |
| Cambrian Park | Census-Designated Place | Santa Clara | 3,392 | 3,258 | 3,282 | 3,719 | → |
| Cameron Park | Census-Designated Place | El Dorado | 12,850 | 15,434 | 18,228 | 18,881 | → |
| Camino | Census-Designated Place | El Dorado | 1,752 | 1,748 | 1,867 | 1,871 | → |
| Camino Tassajara | Census-Designated Place | Contra Costa | ... | ... | 2,197 | 4,951 | → |
| Camp Nelson | Census-Designated Place | Tulare | 110 | 128 | 97 | 106 | → |
| Camp Pendleton Mainside (Camp Pendleton North) | Census-Designated Place | San Diego | 10,373 | 8,894 | 6,343 | 9,683 | → |
| Camp Pendleton South | Census-Designated Place | San Diego | 11,299 | 8,854 | 13,446 | 12,468 | → |
| Campbell | City | Santa Clara | 38,790 | 40,224 | 40,578 | 43,957 | → |
| Campo | Census-Designated Place | San Diego | 1,545 | 1,976 | 2,684 | 2,955 | → |
| Camptonville | Census-Designated Place | Yuba | 90 | 114 | 158 | 158 | → |
| Canby | Census-Designated Place | Modoc | 309 | 242 | 315 | 183 | → |
| Cantua Creek | Census-Designated Place | Fresno | 479 | 655 | 466 | 500 | → |
| Canyon Lake | City | Riverside | 9,358 | 9,886 | 10,550 | 11,080 | → |
| Canyondam | Census-Designated Place | Plumas | 48 | 37 | 31 | 30 | → |
| Capitola | City | Santa Cruz | 10,062 | 10,198 | 9,917 | 9,930 | → |
| Caribou | Census-Designated Place | Plumas | ... | ... | ... | 1 | → |
| Carlsbad | City | San Diego | 63,011 | 78,455 | 105,349 | 114,733 | → |
| Carmel Valley Village | Census-Designated Place | Monterey | 4,407 | 4,700 | 4,407 | 4,524 | → |
| Carmel-by-the-Sea | City | Monterey | 4,226 | 4,022 | 3,674 | 3,215 | → |
| Carmet | Census-Designated Place | Sonoma | 43 | 79 | 47 | 55 | → |
| Carmichael | Census-Designated Place | Sacramento | 73,351 | 73,106 | 71,994 | 79,793 | → |
| Carnelian Bay | Census-Designated Place | Placer | 593 | 622 | 524 | 518 | → |
| Carpinteria | City | Santa Barbara | 13,860 | 14,127 | 12,993 | 13,261 | → |
| Carrick | Census-Designated Place | Siskiyou | 43 | 156 | 131 | 143 | → |
| Carson | City | Los Angeles | 84,067 | 89,723 | 91,711 | 95,557 | → |
| Cartago | Census-Designated Place | Inyo | 52 | 109 | 92 | 62 | → |
| Caruthers | Census-Designated Place | Fresno | 1,603 | 2,103 | 2,497 | 2,613 | → |
| Casa Conejo | Census-Designated Place | Ventura | 2,992 | 3,180 | 3,249 | 3,267 | → |
| Casa de Oro-Mount Helix | Census-Designated Place | San Diego | 18,441 | 18,874 | 18,762 | 19,576 | → |
| Casa Loma | Census-Designated Place | Kern | 1,674 | 1,687 | 1,908 | 1,804 | → |
| Casmalia | Census-Designated Place | Santa Barbara | 81 | 77 | 138 | 147 | → |
| Caspar | Census-Designated Place | Mendocino | 410 | 327 | 509 | 500 | → |
| Cassel | Census-Designated Place | Shasta | 88 | 118 | 207 | 207 | → |
| Castaic | Census-Designated Place | Los Angeles | 4,593 | 9,466 | 19,015 | 18,937 | → |
| Castella | Census-Designated Place | Shasta | 309 | 233 | 225 | 214 | → |
| Castle Hill | Census-Designated Place | Contra Costa | 1,106 | 1,263 | 1,180 | 1,271 | → |
| Castro Valley | Census-Designated Place | Alameda | 50,039 | 57,292 | 61,388 | 66,441 | → |
| Castroville | Census-Designated Place | Monterey | 4,807 | 6,724 | 6,481 | 7,515 | → |
| Cathedral City | City | Riverside | 30,202 | 42,967 | 51,233 | 51,501 | → |
| Catheys Valley | Census-Designated Place | Mariposa | 418 | 719 | 825 | 829 | → |
| Cayucos | Census-Designated Place | San Luis Obispo | 2,960 | 2,943 | 2,592 | 2,505 | → |
| Cazadero | Census-Designated Place | Sonoma | 194 | 368 | 354 | 298 | → |
| Cedar Flat | Census-Designated Place | Placer | 692 | 811 | 720 | 797 | → |
| Cedar Ridge | Census-Designated Place | Tuolumne | 844 | 1,242 | 1,132 | 1,235 | → |
| Cedar Slope | Census-Designated Place | Tulare | ... | ... | ... | 10 | → |
| Cedarville | Census-Designated Place | Modoc | 529 | 475 | 514 | 437 | → |
| Centerville | Census-Designated Place | Fresno | 424 | 595 | 392 | 378 | → |
| Centerville | Census-Designated Place | Shasta | 1,560 | 1,824 | 1,812 | 2,095 | → |
| Ceres | City | Stanislaus | 26,843 | 34,829 | 45,878 | 49,715 | → |
| Cerritos | City | Los Angeles | 53,345 | 51,378 | 49,043 | 49,566 | → |
| Chalfant | Census-Designated Place | Mono | 154 | 493 | 651 | 660 | → |
| Challenge-Brownsville | Census-Designated Place | Yuba | 1,096 | 1,069 | 1,148 | 1,161 | → |
| Channel Islands Beach | Census-Designated Place | Ventura | 2,998 | 3,142 | 3,103 | 2,870 | → |
| Charleston View | Census-Designated Place | Inyo | ... | ... | 33 | 45 | → |
| Charter Oak | Census-Designated Place | Los Angeles | 8,858 | 9,027 | 9,310 | 9,739 | → |
| Cherokee | Census-Designated Place | Butte | ... | 81 | 69 | 88 | → |
| Cherokee Strip | Census-Designated Place | Kern | ... | ... | 227 | 206 | → |
| Cherry Valley | Census-Designated Place | Riverside | 5,632 | 5,891 | 6,362 | 6,509 | → |
| Cherryland | Census-Designated Place | Alameda | 11,088 | 13,837 | 14,728 | 15,808 | → |
| Chester | Census-Designated Place | Plumas | 2,082 | 2,316 | 2,144 | 2,187 | → |
| Chico | City | Butte | 66,742 | 80,171 | 89,013 | 103,830 | → |
| Chilcoot-Vinton | Census-Designated Place | Plumas | 357 | 387 | 454 | 446 | → |
| China Lake Acres | Census-Designated Place | Kern | 2,059 | 1,761 | 1,876 | 1,757 | → |
| Chinese Camp | Census-Designated Place | Tuolumne | 112 | 146 | 126 | 90 | → |
| Chino | City | San Bernardino | 62,929 | 69,779 | 78,074 | 91,390 | → |
| Chino Hills | City | San Bernardino | 37,964 | 66,789 | 74,792 | 78,429 | → |
| Choctaw Valley | Census-Designated Place | Kern | ... | 195 | 225 | 237 | → |
| Chowchilla | City | Madera | 6,052 | 11,268 | 18,785 | 19,169 | → |
| Chualar | Census-Designated Place | Monterey | 544 | 1,444 | 1,190 | 1,185 | → |
| Chula Vista | City | San Diego | 135,065 | 173,661 | 243,912 | 275,494 | → |
| Citrus | Census-Designated Place | Los Angeles | 9,481 | 10,581 | 10,866 | 10,243 | → |
| Citrus Heights | City | Sacramento | 81,913 | 85,173 | 83,118 | 87,578 | → |
| Claremont | City | Los Angeles | 33,191 | 33,827 | 34,867 | 37,494 | → |
| Clarksburg | Census-Designated Place | Yolo | 333 | 463 | 418 | 402 | → |
| Clay | Census-Designated Place | Sacramento | 821 | 990 | 1,195 | 1,252 | → |
| Clayton | City | Contra Costa | 7,339 | 10,797 | 10,918 | 11,073 | → |
| Clear Creek | Census-Designated Place | Lassen | 229 | 184 | 169 | 175 | → |
| Clearlake | City | Lake | 11,806 | 13,158 | 15,250 | 16,687 | → |
| Clearlake Oaks | Census-Designated Place | Lake | 2,326 | 2,402 | 2,359 | 2,551 | → |
| Clearlake Riviera | Census-Designated Place | Lake | 1,271 | 1,866 | 3,090 | 3,410 | → |
| Cleone | Census-Designated Place | Mendocino | 131 | 115 | 618 | 622 | → |
| Clio | Census-Designated Place | Plumas | 104 | 90 | 66 | 77 | → |
| Clipper Mills | Census-Designated Place | Butte | 125 | 144 | 142 | 160 | → |
| Cloverdale | City | Sonoma | 5,075 | 6,844 | 8,601 | 9,012 | → |
| Clovis | City | Fresno | 51,086 | 69,629 | 95,987 | 120,165 | → |
| Clyde | Census-Designated Place | Contra Costa | 517 | 694 | 678 | 729 | → |
| Coachella | City | Riverside | 17,038 | 22,884 | 40,712 | 41,938 | → |
| Coalinga | City | Fresno | 8,272 | 11,525 | 18,342 | 17,662 | → |
| Coarsegold | Census-Designated Place | Madera | 2,191 | 3,569 | 4,119 | 4,144 | → |
| Cobb | Census-Designated Place | Lake | 1,477 | 1,638 | 1,778 | 1,295 | → |
| Coffee Creek | Census-Designated Place | Trinity | 120 | 106 | 217 | 152 | → |
| Cohasset | Census-Designated Place | Butte | 735 | 828 | 847 | 830 | → |
| Cold Springs | Census-Designated Place | El Dorado | 119 | 108 | 469 | 556 | → |
| Cold Springs | Census-Designated Place | Tuolumne | 154 | 276 | 181 | 123 | → |
| Coleville | Census-Designated Place | Mono | 482 | 516 | 495 | 419 | → |
| Colfax | City | Placer | 1,317 | 1,494 | 1,944 | 1,987 | → |
| College City | Census-Designated Place | Colusa | 217 | 225 | 290 | 292 | → |
| Collierville | Census-Designated Place | San Joaquin | 1,684 | 1,776 | 1,934 | 2,094 | → |
| Colma | Town | San Mateo | 994 | 1,318 | 1,433 | 1,502 | → |
| Coloma | Census-Designated Place | El Dorado | 414 | 352 | 529 | 521 | → |
| Colton | City | San Bernardino | 39,850 | 48,071 | 52,118 | 53,889 | → |
| Columbia | Census-Designated Place | Tuolumne | 1,947 | 2,405 | 2,297 | 2,577 | → |
| Colusa | City | Colusa | 5,064 | 5,436 | 6,222 | 6,401 | → |
| Commerce | City | Los Angeles | 12,142 | 12,491 | 12,835 | 12,363 | → |
| Comptche | Census-Designated Place | Mendocino | 82 | 128 | 159 | 167 | → |
| Compton | City | Los Angeles | 90,002 | 93,038 | 96,373 | 95,728 | → |
| Concord | City | Contra Costa | 111,230 | 122,001 | 122,162 | 125,410 | → |
| Concow | Census-Designated Place | Butte | 765 | 760 | 710 | 402 | → |
| Contra Costa Centre | Census-Designated Place | Contra Costa | 3,009 | 4,849 | 5,364 | 6,808 | → |
| Copperopolis | Census-Designated Place | Calaveras | 705 | 1,714 | 2,490 | 3,400 | → |
| Corcoran | City | Kings | 15,163 | 16,210 | 25,167 | 22,361 | → |
| Corning | City | Tehama | 5,918 | 6,816 | 7,663 | 8,246 | → |
| Corona | City | Riverside | 76,396 | 127,618 | 152,283 | 157,043 | → |
| Coronado | City | San Diego | 26,563 | 24,100 | 24,701 | 20,199 | → |
| Coronita | Census-Designated Place | Riverside | 2,024 | 2,238 | 2,608 | 2,639 | → |
| Corralitos | Census-Designated Place | Santa Cruz | 2,169 | 2,431 | 2,326 | 2,342 | → |
| Corte Madera | Town | Marin | 8,203 | 9,049 | 9,269 | 10,225 | → |
| Costa Mesa | City | Orange | 96,354 | 109,371 | 110,082 | 112,187 | → |
| Cotati | City | Sonoma | 4,668 | 6,342 | 7,280 | 7,597 | → |
| Coto de Caza | Census-Designated Place | Orange | 2,105 | 13,057 | 14,866 | 14,710 | → |
| Cottonwood | Census-Designated Place | Kern | 2,203 | 2,196 | 3,117 | 3,971 | → |
| Cottonwood | Census-Designated Place | Shasta | 4,559 | 5,171 | 5,970 | 6,268 | → |
| Coulterville | Census-Designated Place | Mariposa | 81 | 75 | 68 | 115 | → |
| Country Club | Census-Designated Place | San Joaquin | 9,325 | 9,462 | 9,379 | 10,777 | → |
| Courtland | Census-Designated Place | Sacramento | 200 | 202 | 355 | 326 | → |
| Covelo | Census-Designated Place | Mendocino | 1,057 | 1,175 | 1,255 | 1,394 | → |
| Covina | City | Los Angeles | 43,275 | 46,534 | 47,797 | 51,270 | → |
| Cowan | Census-Designated Place | Stanislaus | ... | 318 | 318 | 342 | → |
| Crescent City | City | Del Norte | 5,035 | 4,638 | 7,618 | 6,675 | → |
| Crescent Mills | Census-Designated Place | Plumas | 256 | 258 | 196 | 206 | → |
| Cressey | Census-Designated Place | Merced | 239 | 305 | 394 | 366 | → |
| Crest | Census-Designated Place | San Diego | 2,682 | 2,716 | 2,593 | 2,828 | → |
| Crestline | Census-Designated Place | San Bernardino | 8,857 | 10,218 | 10,770 | 11,650 | → |
| Creston | Census-Designated Place | San Luis Obispo | 49 | 25 | 94 | 98 | → |
| Crockett | Census-Designated Place | Contra Costa | 2,960 | 2,814 | 3,094 | 3,242 | → |
| Cromberg | Census-Designated Place | Plumas | 209 | 290 | 261 | 272 | → |
| Crowley Lake | Census-Designated Place | Mono | 343 | 571 | 875 | 980 | → |
| Crows Landing | Census-Designated Place | Stanislaus | 282 | 271 | 269 | 322 | → |
| Cudahy | City | Los Angeles | 22,886 | 24,218 | 23,809 | 22,807 | → |
| Culver City | City | Los Angeles | 38,858 | 38,806 | 38,833 | 40,820 | → |
| Cupertino | City | Santa Clara | 45,991 | 52,656 | 58,547 | 60,229 | → |
| Cutler | Census-Designated Place | Tulare | 4,450 | 4,491 | 5,000 | 4,480 | → |
| Cutten | Census-Designated Place | Humboldt | 1,516 | 2,933 | 3,108 | 3,223 | → |
| Cuyama | Census-Designated Place | Santa Barbara | 39 | 51 | 57 | 37 | → |
| Cypress | City | Orange | 42,634 | 46,453 | 47,858 | 50,148 | → |
| Dales | Census-Designated Place | Tehama | ... | 26 | 29 | 28 | → |
| Daly City | City | San Mateo | 91,968 | 103,519 | 101,322 | 105,049 | → |
| Dana Point | City | Orange | 31,781 | 35,119 | 33,291 | 33,108 | → |
| Danville | Town | Contra Costa | 31,331 | 41,765 | 41,871 | 43,575 | → |
| Daphnedale Park | Census-Designated Place | Modoc | ... | 69 | 155 | 129 | → |
| Darwin | Census-Designated Place | Inyo | ... | 54 | 43 | 36 | → |
| Davenport | Census-Designated Place | Santa Cruz | 175 | 289 | 408 | 388 | → |
| Davis | City | Yolo | 46,372 | 58,805 | 65,675 | 66,861 | → |
| Day Valley | Census-Designated Place | Santa Cruz | 3,336 | 3,587 | 3,409 | 3,410 | → |
| Deer Park | Census-Designated Place | Napa | 1,825 | 1,433 | 1,267 | 1,294 | → |
| Del Aire | Census-Designated Place | Los Angeles | 8,040 | 9,012 | 10,001 | 10,338 | → |
| Del Dios | Census-Designated Place | San Diego | 276 | 359 | 380 | 396 | → |
| Del Mar | City | San Diego | 4,763 | 4,399 | 4,163 | 3,950 | → |
| Del Monte Forest | Census-Designated Place | Monterey | 5,069 | 4,531 | 4,514 | 4,204 | → |
| Del Rey | Census-Designated Place | Fresno | 1,150 | 950 | 1,639 | 1,358 | → |
| Del Rey Oaks | City | Monterey | 1,661 | 1,658 | 1,624 | 1,584 | → |
| Del Rio | Census-Designated Place | Stanislaus | 848 | 1,168 | 1,270 | 1,399 | → |
| Delano | City | Kern | 23,215 | 39,579 | 53,048 | 51,424 | → |
| Delft Colony | Census-Designated Place | Tulare | 444 | 71 | 454 | 412 | → |
| Delhi | Census-Designated Place | Merced | 3,909 | 8,022 | 10,755 | 10,656 | → |
| Delleker | Census-Designated Place | Plumas | 588 | 674 | 705 | 802 | → |
| Denair | Census-Designated Place | Stanislaus | 3,303 | 3,134 | 4,084 | 4,865 | → |
| Derby Acres | Census-Designated Place | Kern | 405 | 376 | 322 | 301 | → |
| Descanso | Census-Designated Place | San Diego | 1,341 | 1,450 | 1,423 | 1,499 | → |
| Desert Center | Census-Designated Place | Riverside | 96 | 290 | 204 | 256 | → |
| Desert Edge | Census-Designated Place | Riverside | 1,918 | 2,327 | 3,822 | 4,180 | → |
| Desert Hot Springs | City | Riverside | 12,433 | 17,564 | 27,063 | 32,532 | → |
| Desert Palms | Census-Designated Place | Riverside | ... | 3,990 | 6,957 | 6,686 | → |
| Desert Shores | Census-Designated Place | Imperial | 631 | 792 | 1,104 | 1,128 | → |
| Desert View Highlands | Census-Designated Place | Los Angeles | 2,045 | 2,337 | 2,360 | 2,676 | → |
| Di Giorgio | Census-Designated Place | Kern | ... | ... | 435 | 400 | → |
| Diablo | Census-Designated Place | Contra Costa | 1,954 | 844 | 1,158 | 1,255 | → |
| Diablo Grande | Census-Designated Place | Stanislaus | ... | ... | 758 | 1,669 | → |
| Diamond Bar | City | Los Angeles | 53,762 | 56,776 | 55,566 | 55,190 | → |
| Diamond Springs | Census-Designated Place | El Dorado | 9,572 | 10,344 | 11,037 | 11,345 | → |
| Dillon Beach | Census-Designated Place | Marin | 277 | 319 | 283 | 246 | → |
| Dinuba | City | Tulare | 13,744 | 17,763 | 21,465 | 24,615 | → |
| Discovery Bay | Census-Designated Place | Contra Costa | 5,351 | 8,981 | 13,352 | 15,358 | → |
| Dixon | City | Solano | 10,554 | 16,077 | 18,401 | 19,308 | → |
| Dixon Lane-Meadow Creek | Census-Designated Place | Inyo | 2,561 | 2,702 | 2,645 | 2,780 | → |
| Dobbins | Census-Designated Place | Yuba | 486 | 539 | 624 | 551 | → |
| Dogtown | Census-Designated Place | San Joaquin | 1,782 | 2,058 | 2,506 | 2,516 | → |
| Dollar Point | Census-Designated Place | Placer | 1,449 | 1,539 | 1,215 | 1,261 | → |
| Dorrington | Census-Designated Place | Calaveras | 523 | 727 | 609 | 519 | → |
| Dorris | City | Siskiyou | 894 | 895 | 939 | 858 | → |
| Dos Palos | City | Merced | 4,271 | 4,395 | 4,948 | 5,803 | → |
| Dos Palos Y | Census-Designated Place | Merced | 364 | 322 | 323 | 310 | → |
| Douglas City | Census-Designated Place | Trinity | 685 | 666 | 921 | 868 | → |
| Downey | City | Los Angeles | 91,488 | 107,366 | 111,775 | 114,351 | → |
| Downieville | Census-Designated Place | Sierra | 76 | 131 | 282 | 290 | → |
| Doyle | Census-Designated Place | Lassen | 601 | 547 | 678 | 536 | → |
| Drytown | Census-Designated Place | Amador | 84 | 102 | 144 | 186 | → |
| Duarte | City | Los Angeles | 21,484 | 21,657 | 21,325 | 21,724 | → |
| Dublin | City | Alameda | 23,294 | 30,054 | 46,036 | 72,526 | → |
| Ducor | Census-Designated Place | Tulare | 350 | 504 | 612 | 616 | → |
| Dunnigan | Census-Designated Place | Yolo | 640 | 881 | 1,416 | 1,382 | → |
| Dunsmuir | City | Siskiyou | 1,959 | 1,911 | 1,640 | 1,706 | → |
| Durham | Census-Designated Place | Butte | 4,784 | 5,220 | 5,518 | 5,834 | → |
| Dustin Acres | Census-Designated Place | Kern | 173 | 585 | 652 | 677 | → |
| Dutch Flat | Census-Designated Place | Placer | 128 | 144 | 160 | 183 | → |
| Eagleville | Census-Designated Place | Modoc | ... | ... | 59 | 45 | → |
| Earlimart | Census-Designated Place | Tulare | 6,114 | 7,428 | 8,537 | 7,679 | → |
| East Bakersfield | Census-Designated Place | Kern | 9,126 | 9,118 | 9,863 | 9,749 | → |
| East Foothills | Census-Designated Place | Santa Clara | 5,866 | 6,026 | 6,235 | 6,803 | → |
| East Hemet | Census-Designated Place | Riverside | 15,281 | 16,188 | 17,418 | 19,432 | → |
| East Los Angeles | Census-Designated Place | Los Angeles | 126,379 | 124,283 | 126,496 | 118,786 | → |
| East Nicolaus | Census-Designated Place | Sutter | 231 | 262 | 225 | 223 | → |
| East Niles | Census-Designated Place | Kern | 18,943 | 20,355 | 25,812 | 28,390 | → |
| East Oakdale | Census-Designated Place | Stanislaus | 2,711 | 2,456 | 2,762 | 3,201 | → |
| East Orosi | Census-Designated Place | Tulare | 433 | 426 | 495 | 423 | → |
| East Palo Alto | City | San Mateo | 23,490 | 29,402 | 28,185 | 30,035 | → |
| East Pasadena | Census-Designated Place | Los Angeles | 5,910 | 6,045 | 6,144 | 6,021 | → |
| East Porterville | Census-Designated Place | Tulare | 4,285 | 5,166 | 5,716 | 5,549 | → |
| East Quincy | Census-Designated Place | Plumas | 2,434 | 2,398 | 2,489 | 2,463 | → |
| East Rancho Dominguez | Census-Designated Place | Los Angeles | 11,580 | 13,764 | 15,135 | 15,114 | → |
| East Richmond Heights | Census-Designated Place | Contra Costa | 3,266 | 3,357 | 3,280 | 3,460 | → |
| East San Gabriel | Census-Designated Place | Los Angeles | 18,759 | 21,762 | 22,680 | 22,769 | → |
| East Shore | Census-Designated Place | Plumas | 167 | 177 | 156 | 181 | → |
| East Sonora | Census-Designated Place | Tuolumne | 1,675 | 2,078 | 2,266 | 2,431 | → |
| East Tulare Villa | Census-Designated Place | Tulare | 589 | 458 | 522 | 773 | → |
| East Whittier (East La Mirada) | Census-Designated Place | Los Angeles | 8,830 | 9,538 | 9,757 | 10,394 | → |
| Eastern Goleta Valley | Census-Designated Place | Santa Barbara | 26,154 | 27,800 | 28,629 | 28,656 | → |
| Easton | Census-Designated Place | Fresno | 1,877 | 1,966 | 2,083 | 1,972 | → |
| Eastvale | City | Riverside | 3,973 | 4,337 | 53,712 | 69,751 | → |
| Edgewood | Census-Designated Place | Siskiyou | 64 | 67 | 43 | 72 | → |
| Edison | Census-Designated Place | Kern | 304 | 280 | 280 | 255 | → |
| Edmundson Acres | Census-Designated Place | Kern | ... | 251 | 279 | 296 | → |
| Edna | Census-Designated Place | San Luis Obispo | 93 | 69 | 193 | 184 | → |
| Edwards AFB | Census-Designated Place | Kern | 7,423 | 5,909 | 2,063 | 2,135 | → |
| El Adobe | Census-Designated Place | Kern | 254 | 308 | 387 | 391 | → |
| El Cajon | City | San Diego | 89,119 | 94,907 | 99,589 | 106,193 | → |
| El Centro | City | Imperial | 32,882 | 38,230 | 42,686 | 44,536 | → |
| El Centro Naval Air Facility | Census-Designated Place | Imperial | 642 | 553 | 514 | 280 | → |
| El Cerrito | City | Contra Costa | 22,875 | 23,069 | 23,598 | 25,957 | → |
| El Cerrito | Census-Designated Place | Riverside | 4,490 | 4,590 | 5,100 | 5,058 | → |
| El Dorado Hills | Census-Designated Place | El Dorado | 11,014 | 23,754 | 42,108 | 50,547 | → |
| El Granada | Census-Designated Place | San Mateo | 4,388 | 4,850 | 5,467 | 5,481 | → |
| El Macero | Census-Designated Place | Yolo | 664 | 768 | 619 | 1,074 | → |
| El Monte | City | Los Angeles | 105,890 | 116,102 | 113,580 | 109,457 | → |
| El Monte Mobile Village | Census-Designated Place | Tulare | 109 | 148 | 77 | 156 | → |
| El Nido | Census-Designated Place | Merced | 276 | 265 | 330 | 331 | → |
| El Paso de Robles (Paso Robles) | City | San Luis Obispo | 19,431 | 24,325 | 29,744 | 31,497 | → |
| El Portal | Census-Designated Place | Mariposa | 476 | 518 | 474 | 372 | → |
| El Rancho | Census-Designated Place | Tulare | ... | ... | 124 | 96 | → |
| El Rio | Census-Designated Place | Ventura | 6,419 | 6,193 | 7,198 | 7,037 | → |
| El Segundo | City | Los Angeles | 15,189 | 16,031 | 16,656 | 17,269 | → |
| El Sobrante | Census-Designated Place | Contra Costa | 10,859 | 13,432 | 13,993 | 15,524 | → |
| El Sobrante | Census-Designated Place | Riverside | 1,413 | 5,432 | 12,723 | 14,039 | → |
| El Verano | Census-Designated Place | Sonoma | 3,498 | 3,954 | 4,123 | 3,867 | → |
| Eldridge | Census-Designated Place | Sonoma | 1,144 | 1,534 | 1,233 | 1,312 | → |
| Elfin Forest | Census-Designated Place | San Diego | ... | 512 | 501 | 600 | → |
| Elizabeth Lake | Census-Designated Place | Los Angeles | 790 | 1,738 | 1,756 | 1,651 | → |
| Elk Creek | Census-Designated Place | Glenn | 26 | 58 | 163 | 138 | → |
| Elk Grove | City | Sacramento | 33,333 | 81,082 | 152,988 | 176,138 | → |
| Elkhorn | Census-Designated Place | Monterey | 1,458 | 1,591 | 1,565 | 1,588 | → |
| Elmira | Census-Designated Place | Solano | 196 | 205 | 188 | 193 | → |
| Elverta | Census-Designated Place | Sacramento | 5,707 | 5,615 | 5,492 | 5,435 | → |
| Emerald Lake Hills | Census-Designated Place | San Mateo | 3,328 | 3,899 | 4,278 | 4,406 | → |
| Emeryville | City | Alameda | 5,636 | 6,944 | 10,099 | 12,904 | → |
| Empire | Census-Designated Place | Stanislaus | 2,142 | 2,621 | 2,986 | 4,202 | → |
| Encinitas | City | San Diego | 55,768 | 57,954 | 59,500 | 62,001 | → |
| Escalon | City | San Joaquin | 4,472 | 6,054 | 7,123 | 7,472 | → |
| Escondido | City | San Diego | 109,019 | 133,524 | 143,990 | 151,100 | → |
| Esparto | Census-Designated Place | Yolo | 1,767 | 2,042 | 3,108 | 3,572 | → |
| Etna | City | Siskiyou | 892 | 772 | 739 | 675 | → |
| Eucalyptus Hills | Census-Designated Place | San Diego | 3,415 | 5,648 | 5,313 | 5,517 | → |
| Eureka | City | Humboldt | 25,804 | 26,021 | 27,196 | 26,539 | → |
| Exeter | City | Tulare | 7,409 | 9,150 | 10,346 | 10,326 | → |
| Fair Oaks | Census-Designated Place | Sacramento | 30,869 | 31,449 | 30,912 | 32,514 | → |
| Fairbanks Ranch | Census-Designated Place | San Diego | 2,007 | 2,244 | 3,148 | 3,002 | → |
| Fairfax | Census-Designated Place | Kern | 1,044 | 1,163 | 1,920 | 1,879 | → |
| Fairfax | Town | Marin | 7,048 | 7,462 | 7,444 | 7,605 | → |
| Fairfield | City | Solano | 78,683 | 96,213 | 105,453 | 119,927 | → |
| Fairhaven | Census-Designated Place | Humboldt | 194 | 139 | 195 | 165 | → |
| Fairmead | Census-Designated Place | Madera | 1,046 | 1,217 | 1,447 | 1,235 | → |
| Fairview | Census-Designated Place | Alameda | 9,680 | 9,470 | 10,003 | 11,341 | → |
| Fall River Mills | Census-Designated Place | Shasta | 588 | 648 | 573 | 616 | → |
| Fallbrook | Census-Designated Place | San Diego | 24,319 | 29,100 | 30,534 | 32,267 | → |
| Farmersville | City | Tulare | 6,264 | 8,778 | 10,588 | 10,407 | → |
| Farmington | Census-Designated Place | San Joaquin | 230 | 262 | 207 | 220 | → |
| Fellows | Census-Designated Place | Kern | 299 | 153 | 106 | 52 | → |
| Felton | Census-Designated Place | Santa Cruz | 4,248 | 5,273 | 4,057 | 4,489 | → |
| Ferndale | City | Humboldt | 1,314 | 1,360 | 1,370 | 1,402 | → |
| Fetters Hot Springs-Agua Caliente | Census-Designated Place | Sonoma | 2,673 | 3,557 | 4,144 | 4,233 | → |
| Fiddletown | Census-Designated Place | Amador | 122 | 71 | 235 | 279 | → |
| Fieldbrook | Census-Designated Place | Humboldt | 895 | 935 | 859 | 827 | → |
| Fields Landing | Census-Designated Place | Humboldt | 216 | 241 | 276 | 287 | → |
| Fillmore | City | Ventura | 12,106 | 13,626 | 14,986 | 16,426 | → |
| Firebaugh | City | Fresno | 4,554 | 6,475 | 7,560 | 8,124 | → |
| Fish Camp | Census-Designated Place | Mariposa | ... | 15 | 12 | 49 | → |
| Florence-Graham | Census-Designated Place | Los Angeles | 57,147 | 60,197 | 63,387 | 61,983 | → |
| Florin | Census-Designated Place | Sacramento | 35,911 | 45,890 | 47,513 | 52,388 | → |
| Floriston | Census-Designated Place | Nevada | 53 | 79 | 73 | 80 | → |
| Flournoy | Census-Designated Place | Tehama | ... | ... | 101 | 117 | → |
| Folsom | City | Sacramento | 29,798 | 51,926 | 72,147 | 80,463 | → |
| Fontana | City | San Bernardino | 101,484 | 144,869 | 196,457 | 208,407 | → |
| Foothill Farms | Census-Designated Place | Sacramento | 31,836 | 32,837 | 33,121 | 35,834 | → |
| Forbestown | Census-Designated Place | Butte | 245 | 269 | 320 | 396 | → |
| Ford City | Census-Designated Place | Kern | 3,781 | 3,512 | 4,278 | 4,348 | → |
| Forest Meadows | Census-Designated Place | Calaveras | 424 | 1,197 | 1,216 | 1,276 | → |
| Forest Ranch | Census-Designated Place | Butte | 902 | 1,237 | 1,184 | 1,304 | → |
| Foresta (Crane Creek) | Census-Designated Place | Mariposa | ... | ... | 9 | 29 | → |
| Foresthill | Census-Designated Place | Placer | 1,620 | 1,791 | 1,483 | 1,692 | → |
| Forestville | Census-Designated Place | Sonoma | 3,301 | 3,317 | 3,293 | 3,264 | → |
| Fort Bidwell | Census-Designated Place | Modoc | 55 | 71 | 173 | 180 | → |
| Fort Bragg | City | Mendocino | 6,210 | 6,887 | 7,311 | 6,986 | → |
| Fort Dick | Census-Designated Place | Del Norte | 306 | 3,865 | 630 | 912 | → |
| Fort Hunter Liggett | Census-Designated Place | Monterey | ... | ... | 286 | 250 | → |
| Fort Irwin | Census-Designated Place | San Bernardino | ... | 6,050 | 8,845 | 8,096 | → |
| Fort Jones | City | Siskiyou | 644 | 662 | 714 | 702 | → |
| Fort Washington | Census-Designated Place | Fresno | 271 | 270 | 233 | 255 | → |
| Fortuna | City | Humboldt | 8,768 | 10,492 | 12,020 | 12,516 | → |
| Foster City | City | San Mateo | 28,160 | 28,817 | 30,563 | 33,809 | → |
| Fountain Valley | City | Orange | 54,204 | 54,921 | 55,360 | 57,049 | → |
| Fowler | City | Fresno | 3,260 | 3,982 | 5,654 | 6,713 | → |
| Franklin | Census-Designated Place | Merced | 3,730 | 4,713 | 6,149 | 6,919 | → |
| Franklin | Census-Designated Place | Sacramento | 120 | 144 | 155 | 167 | → |
| Frazier Park | Census-Designated Place | Kern | 2,201 | 2,348 | 2,691 | 2,592 | → |
| Freedom | Census-Designated Place | Santa Cruz | 3,421 | 4,233 | 3,944 | 3,835 | → |
| Freeport | Census-Designated Place | Sacramento | ... | 30 | 38 | 58 | → |
| Fremont | City | Alameda | 173,338 | 203,461 | 214,065 | 230,497 | → |
| French Camp | Census-Designated Place | San Joaquin | 3,018 | 4,109 | 3,376 | 3,770 | → |
| French Gulch | Census-Designated Place | Shasta | 317 | 254 | 346 | 373 | → |
| French Valley | Census-Designated Place | Riverside | 464 | 2,238 | 23,067 | 35,280 | → |
| Fresno | City | Fresno | 354,834 | 429,583 | 497,059 | 542,235 | → |
| Friant | Census-Designated Place | Fresno | 509 | 519 | 509 | 446 | → |
| Fruitdale | Census-Designated Place | Santa Clara | 1,413 | 895 | 935 | 989 | → |
| Fruitridge Pocket | Census-Designated Place | Sacramento | 5,430 | 6,247 | 5,800 | 6,102 | → |
| Fuller Acres | Census-Designated Place | Kern | 790 | 777 | 991 | 917 | → |
| Fullerton | City | Orange | 114,235 | 126,187 | 135,183 | 143,645 | → |
| Fulton | Census-Designated Place | Sonoma | 532 | 547 | 541 | 551 | → |
| Furnace Creek | Census-Designated Place | Inyo | 300 | 31 | 24 | 136 | → |
| Galt | City | Sacramento | 8,912 | 19,454 | 23,717 | 25,643 | → |
| Garberville | Census-Designated Place | Humboldt | 367 | 407 | 913 | 818 | → |
| Garden Acres | Census-Designated Place | San Joaquin | 8,547 | 9,747 | 10,648 | 11,398 | → |
| Garden Farms | Census-Designated Place | San Luis Obispo | 242 | 316 | 386 | 449 | → |
| Garden Grove | City | Orange | 144,216 | 165,242 | 170,960 | 171,976 | → |
| Gardena | City | Los Angeles | 55,530 | 58,073 | 58,829 | 61,024 | → |
| Garey | Census-Designated Place | Santa Barbara | 25 | 48 | 68 | 72 | → |
| Garnet | Census-Designated Place | Riverside | 1,817 | 3,825 | 6,465 | 7,118 | → |
| Gasquet | Census-Designated Place | Del Norte | 323 | 223 | 661 | 657 | → |
| Gazelle | Census-Designated Place | Siskiyou | 130 | 136 | 70 | 95 | → |
| Georgetown | Census-Designated Place | El Dorado | 1,815 | 1,826 | 2,367 | 2,255 | → |
| Gerber | Census-Designated Place | Tehama | 973 | 1,217 | 1,060 | 1,044 | → |
| Geyserville | Census-Designated Place | Sonoma | 628 | 906 | 862 | 861 | → |
| Gilroy | City | Santa Clara | 31,530 | 41,229 | 48,969 | 59,533 | → |
| Glen Ellen | Census-Designated Place | Sonoma | 798 | 992 | 784 | 714 | → |
| Glendale | City | Los Angeles | 180,040 | 194,943 | 191,682 | 196,527 | → |
| Glendora | City | Los Angeles | 47,864 | 49,306 | 50,247 | 52,580 | → |
| Glennville | Census-Designated Place | Kern | 92 | 127 | 99 | 158 | → |
| Gold Mountain | Census-Designated Place | Plumas | ... | ... | 80 | 73 | → |
| Gold River | Census-Designated Place | Sacramento | 3,852 | 8,023 | 7,912 | 7,844 | → |
| Golden Hills | Census-Designated Place | Kern | 6,500 | 7,434 | 8,656 | 9,578 | → |
| Goleta | City | Santa Barbara | 27,556 | 26,616 | 30,096 | 32,692 | → |
| Gonzales | City | Monterey | 4,786 | 7,598 | 8,139 | 8,639 | → |
| Good Hope | Census-Designated Place | Riverside | 5,535 | 6,245 | 9,192 | 9,468 | → |
| Goodmanville | Census-Designated Place | Kern | 76 | 124 | 96 | 121 | → |
| Goodyears Bar | Census-Designated Place | Sierra | ... | ... | 68 | 69 | → |
| Goshen | Census-Designated Place | Tulare | 2,092 | 2,394 | 3,290 | 4,968 | → |
| Graeagle | Census-Designated Place | Plumas | 718 | 831 | 737 | 724 | → |
| Grand Terrace | City | San Bernardino | 10,924 | 11,536 | 12,038 | 13,146 | → |
| Grangeville | Census-Designated Place | Kings | 320 | 111 | 469 | 508 | → |
| Granite Bay | Census-Designated Place | Placer | 13,164 | 19,388 | 20,402 | 21,247 | → |
| Granite Hills | Census-Designated Place | San Diego | 3,157 | 3,246 | 3,035 | 3,267 | → |
| Graniteville | Census-Designated Place | Nevada | ... | ... | 11 | 1 | → |
| Grass Valley | City | Nevada | 10,222 | 11,819 | 12,876 | 14,082 | → |
| Graton | Census-Designated Place | Sonoma | 1,409 | 1,815 | 1,707 | 1,683 | → |
| Grayson | Census-Designated Place | Stanislaus | 629 | 802 | 685 | 1,041 | → |
| Greeley Hill | Census-Designated Place | Mariposa | 776 | 917 | 1,005 | 927 | → |
| Green Acres | Census-Designated Place | Riverside | 661 | 1,045 | 1,805 | 2,918 | → |
| Green Valley | Census-Designated Place | Los Angeles | 1,024 | 1,111 | 1,027 | 1,036 | → |
| Green Valley | Census-Designated Place | Solano | 1,807 | 1,859 | 1,625 | 1,654 | → |
| Greenacres | Census-Designated Place | Kern | 5,156 | 5,242 | 5,566 | 5,496 | → |
| Greenfield | Census-Designated Place | Kern | 2,596 | 3,110 | 3,512 | 3,447 | → |
| Greenfield | City | Monterey | 7,768 | 12,901 | 16,343 | 18,937 | → |
| Greenhorn | Census-Designated Place | Plumas | 77 | 146 | 236 | 247 | → |
| Greenview | Census-Designated Place | Siskiyou | 75 | 200 | 201 | 208 | → |
| Greenville | Census-Designated Place | Plumas | 1,396 | 1,160 | 1,129 | 1,026 | → |
| Grenada | Census-Designated Place | Siskiyou | 224 | 351 | 367 | 314 | → |
| Gridley | City | Butte | 4,914 | 5,517 | 6,640 | 7,450 | → |
| Grimes | Census-Designated Place | Colusa | 265 | 365 | 391 | 296 | → |
| Grizzly Flats | Census-Designated Place | El Dorado | 251 | 594 | 1,066 | 1,093 | → |
| Groveland | Census-Designated Place | Tuolumne | 578 | 475 | 601 | 540 | → |
| Grover Beach | City | San Luis Obispo | 11,582 | 13,035 | 13,158 | 12,672 | → |
| Guadalupe | City | Santa Barbara | 5,604 | 5,648 | 7,080 | 8,067 | → |
| Guerneville | Census-Designated Place | Sonoma | 4,190 | 4,835 | 4,534 | 4,552 | → |
| Guinda | Census-Designated Place | Yolo | 164 | 230 | 254 | 245 | → |
| Gustine | City | Merced | 4,014 | 4,705 | 5,512 | 6,148 | → |
| Hacienda Heights | Census-Designated Place | Los Angeles | 52,354 | 53,122 | 54,038 | 54,191 | → |
| Half Moon Bay | City | San Mateo | 8,872 | 11,342 | 11,351 | 11,799 | → |
| Hamilton Branch | Census-Designated Place | Plumas | 445 | 587 | 537 | 505 | → |
| Hamilton City | Census-Designated Place | Glenn | 1,811 | 2,066 | 2,439 | 2,263 | → |
| Hanford | City | Kings | 30,760 | 41,965 | 54,457 | 59,007 | → |
| Happy Camp | Census-Designated Place | Siskiyou | 1,271 | 886 | 1,190 | 905 | → |
| Happy Valley | Census-Designated Place | Shasta | 3,695 | 3,220 | 3,891 | 4,949 | → |
| Harbison Canyon | Census-Designated Place | San Diego | 3,317 | 3,645 | 3,841 | 4,048 | → |
| Hardwick | Census-Designated Place | Kings | ... | 56 | 138 | 151 | → |
| Harmony Grove | Census-Designated Place | San Diego | 600 | 421 | 349 | 2,079 | → |
| Hartland | Census-Designated Place | Tulare | ... | 33 | 30 | 69 | → |
| Hartley | Census-Designated Place | Solano | 2,074 | 2,057 | 2,510 | 2,430 | → |
| Hasley Canyon | Census-Designated Place | Los Angeles | ... | 499 | 1,137 | 1,195 | → |
| Hat Creek | Census-Designated Place | Shasta | 197 | 283 | 309 | 266 | → |
| Hawaiian Gardens | City | Los Angeles | 13,654 | 14,787 | 14,273 | 14,146 | → |
| Hawthorne | City | Los Angeles | 70,828 | 84,149 | 84,171 | 88,080 | → |
| Hayfork | Census-Designated Place | Trinity | 2,459 | 2,079 | 2,368 | 2,324 | → |
| Hayward | City | Alameda | 114,663 | 140,107 | 144,319 | 162,933 | → |
| Healdsburg | City | Sonoma | 9,812 | 11,002 | 11,255 | 11,356 | → |
| Heber | Census-Designated Place | Imperial | 2,566 | 3,294 | 6,368 | 6,896 | → |
| Hemet | City | Riverside | 49,191 | 58,970 | 78,695 | 89,811 | → |
| Herald | Census-Designated Place | Sacramento | 779 | 794 | 1,184 | 1,160 | → |
| Hercules | City | Contra Costa | 16,832 | 19,430 | 24,089 | 26,019 | → |
| Herlong | Census-Designated Place | Lassen | 398 | 198 | 298 | 237 | → |
| Hermosa Beach | City | Los Angeles | 18,046 | 18,737 | 19,509 | 19,735 | → |
| Hesperia | City | San Bernardino | 50,679 | 62,694 | 90,096 | 99,815 | → |
| Hickman | Census-Designated Place | Stanislaus | 42 | 400 | 567 | 604 | → |
| Hidden Hills | City | Los Angeles | 1,721 | 1,874 | 1,848 | 1,723 | → |
| Hidden Meadows | Census-Designated Place | San Diego | 2,534 | 3,113 | 3,485 | 4,484 | → |
| Hidden Valley Lake | Census-Designated Place | Lake | 2,012 | 3,777 | 5,579 | 6,235 | → |
| Highgrove | Census-Designated Place | Riverside | 3,327 | 3,445 | 3,988 | 7,515 | → |
| Highland | City | San Bernardino | 34,528 | 44,682 | 53,110 | 56,960 | → |
| Highlands | Census-Designated Place | San Mateo | 2,644 | 2,454 | 2,375 | 2,359 | → |
| Hillcrest | Census-Designated Place | Kern | 7,716 | 8,634 | 10,045 | 10,528 | → |
| Hillsborough | Town | San Mateo | 10,607 | 10,870 | 10,783 | 11,380 | → |
| Hilmar-Irwin | Census-Designated Place | Merced | 3,392 | 4,807 | 5,197 | 5,164 | → |
| Hiouchi | Census-Designated Place | Del Norte | 119 | 130 | 301 | 314 | → |
| Hollister | City | San Benito | 20,250 | 34,201 | 35,221 | 41,683 | → |
| Holtville | City | Imperial | 4,802 | 5,599 | 5,947 | 5,614 | → |
| Home Garden | Census-Designated Place | Kings | 1,404 | 1,620 | 1,626 | 1,653 | → |
| Home Gardens | Census-Designated Place | Riverside | 7,684 | 10,064 | 11,570 | 11,203 | → |
| Homeland | Census-Designated Place | Riverside | 4,038 | 4,443 | 5,969 | 6,772 | → |
| Homestead Valley | Census-Designated Place | San Bernardino | 1,237 | 2,484 | 3,032 | 2,789 | → |
| Homewood Canyon | Census-Designated Place | Inyo | ... | ... | 44 | 40 | → |
| Honcut | Census-Designated Place | Butte | 324 | 255 | 370 | 306 | → |
| Hood | Census-Designated Place | Sacramento | ... | 181 | 271 | 244 | → |
| Hoopa | Census-Designated Place | Humboldt | 1,661 | 2,115 | 2,243 | 3,167 | → |
| Hopland | Census-Designated Place | Mendocino | 488 | 634 | 756 | 661 | → |
| Hornbrook | Census-Designated Place | Siskiyou | 242 | 286 | 248 | 266 | → |
| Hornitos | Census-Designated Place | Mariposa | ... | ... | 75 | 38 | → |
| Hughson | City | Stanislaus | 3,380 | 4,040 | 6,647 | 7,485 | → |
| Humboldt Hill | Census-Designated Place | Humboldt | 2,865 | 3,246 | 3,414 | 3,498 | → |
| Huntington Beach | City | Orange | 181,379 | 189,591 | 190,987 | 198,729 | → |
| Huntington Park | City | Los Angeles | 56,027 | 61,303 | 58,127 | 54,885 | → |
| Huron | City | Fresno | 4,731 | 6,316 | 6,745 | 6,392 | → |
| Hyampom | Census-Designated Place | Trinity | 98 | 101 | 241 | 241 | → |
| Hydesville | Census-Designated Place | Humboldt | 1,131 | 1,209 | 1,237 | 1,244 | → |
| Hypericum | Census-Designated Place | Tulare | ... | ... | ... | 125 | → |
| Idlewild | Census-Designated Place | Tulare | ... | ... | 43 | 32 | → |
| Idyllwild-Pine Cove | Census-Designated Place | Riverside | 2,853 | 3,504 | 3,874 | 4,163 | → |
| Igo | Census-Designated Place | Shasta | 35 | 27 | 22 | 103 | → |
| Imperial | City | Imperial | 4,198 | 7,726 | 14,737 | 20,348 | → |
| Imperial Beach | City | San Diego | 26,495 | 26,937 | 26,329 | 26,129 | → |
| Independence | Census-Designated Place | Inyo | 650 | 660 | 669 | 593 | → |
| Indian Falls | Census-Designated Place | Plumas | 25 | 37 | 54 | 79 | → |
| Indian Wells | City | Riverside | 2,681 | 3,986 | 4,958 | 4,767 | → |
| Indianola | Census-Designated Place | Humboldt | 451 | 474 | 823 | 791 | → |
| Indio | City | Riverside | 40,215 | 52,224 | 79,225 | 89,286 | → |
| Indio Hills | Census-Designated Place | Riverside | 594 | 880 | 972 | 1,048 | → |
| Industry | City | Los Angeles | 1,532 | 1,216 | 217 | 264 | → |
| Inglewood | City | Los Angeles | 110,973 | 112,276 | 109,605 | 107,765 | → |
| Interlaken | Census-Designated Place | Santa Cruz | 6,404 | 7,328 | 7,321 | 7,368 | → |
| Inverness | Census-Designated Place | Marin | 1,422 | 1,421 | 1,304 | 1,379 | → |
| Inyokern | Census-Designated Place | Kern | 1,090 | 984 | 1,099 | 988 | → |
| Ione | City | Amador | 6,523 | 7,122 | 7,912 | 8,897 | → |
| Iron Horse | Census-Designated Place | Plumas | 181 | 321 | 297 | 269 | → |
| Irvine | City | Orange | 118,996 | 144,023 | 212,125 | 307,682 | → |
| Irwindale | City | Los Angeles | 1,131 | 1,372 | 1,418 | 1,469 | → |
| Isla Vista | Census-Designated Place | Santa Barbara | 12,812 | 14,247 | 14,822 | 15,500 | → |
| Isleton | City | Sacramento | 832 | 837 | 804 | 795 | → |
| Ivanhoe | Census-Designated Place | Tulare | 3,163 | 3,919 | 3,983 | 4,468 | → |
| Jackson | City | Amador | 3,657 | 3,931 | 4,672 | 5,005 | → |
| Jacumba | Census-Designated Place | San Diego | 460 | 562 | 561 | 540 | → |
| Jamestown | Census-Designated Place | Tuolumne | 2,178 | 3,017 | 3,433 | 3,478 | → |
| Jamul | Census-Designated Place | San Diego | 4,701 | 5,920 | 6,163 | 6,179 | → |
| Janesville | Census-Designated Place | Lassen | 1,693 | 2,301 | 2,564 | 2,461 | → |
| Jenner | Census-Designated Place | Sonoma | 67 | 82 | 136 | 122 | → |
| Johannesburg | Census-Designated Place | Kern | 301 | 176 | 172 | 113 | → |
| Johnson Park | Census-Designated Place | Shasta | 556 | 151 | 489 | 686 | → |
| Johnstonville | Census-Designated Place | Lassen | 827 | 723 | 1,024 | 973 | → |
| Johnsville | Census-Designated Place | Plumas | 41 | 21 | 20 | 22 | → |
| Jones Valley | Census-Designated Place | Shasta | 693 | 712 | 855 | 1,160 | → |
| Joshua Tree | Census-Designated Place | San Bernardino | 5,718 | 6,270 | 7,414 | 6,489 | → |
| Jovista | Census-Designated Place | Tulare | ... | ... | 46 | 41 | → |
| Julian | Census-Designated Place | San Diego | 1,284 | 1,621 | 1,502 | 1,768 | → |
| Junction City | Census-Designated Place | Trinity | 438 | 572 | 680 | 658 | → |
| June Lake | Census-Designated Place | Mono | 449 | 439 | 629 | 611 | → |
| Jurupa Valley (incl. Glen Avon, Mira Loma, Pedley, Rubidoux) | City | Riverside | 68,341 | 80,728 | 94,983 | 105,053 | → |
| Keddie | Census-Designated Place | Plumas | 104 | 96 | 66 | 51 | → |
| Keeler | Census-Designated Place | Inyo | 37 | 66 | 66 | 71 | → |
| Keene | Census-Designated Place | Kern | 251 | 339 | 431 | 469 | → |
| Kelly Ridge | Census-Designated Place | Butte | 1,875 | 1,683 | 2,544 | 3,006 | → |
| Kelseyville | Census-Designated Place | Lake | 2,214 | 2,709 | 3,353 | 3,382 | → |
| Kennedy | Census-Designated Place | San Joaquin | 3,090 | 3,275 | 3,254 | 3,223 | → |
| Kennedy Meadows | Census-Designated Place | Tulare | ... | 12 | 28 | 58 | → |
| Kensington | Census-Designated Place | Contra Costa | 4,696 | 4,936 | 5,077 | 5,428 | → |
| Kentfield | Census-Designated Place | Marin | 6,030 | 6,351 | 6,485 | 6,808 | → |
| Kenwood | Census-Designated Place | Sonoma | 1,261 | 1,138 | 1,028 | 852 | → |
| Kep'el | Census-Designated Place | Humboldt | 64 | 42 | 62 | 76 | → |
| Kerman | City | Fresno | 5,690 | 8,681 | 13,570 | 16,013 | → |
| Kernville | Census-Designated Place | Kern | 1,656 | 1,736 | 1,395 | 1,549 | → |
| Keswick | Census-Designated Place | Shasta | 467 | 384 | 451 | 188 | → |
| Kettleman City | Census-Designated Place | Kings | 1,411 | 1,499 | 1,439 | 1,242 | → |
| Keyes | Census-Designated Place | Stanislaus | 1,901 | 3,789 | 5,110 | 5,672 | → |
| King City | City | Monterey | 7,926 | 11,176 | 12,872 | 13,334 | → |
| Kings Beach | Census-Designated Place | Placer | 2,796 | 4,037 | 3,796 | 3,563 | → |
| Kingsburg | City | Fresno | 7,230 | 9,331 | 11,451 | 12,390 | → |
| Kingvale | Census-Designated Place | Nevada / Placer | 55 | 44 | 143 | 128 | → |
| Kirkwood | Census-Designated Place | Alpine / Amador | 159 | 215 | 158 | 190 | → |
| Klamath | Census-Designated Place | Del Norte | 1,017 | 869 | 1,127 | 1,088 | → |
| Knights Ferry | Census-Designated Place | Stanislaus | ... | 18 | 36 | 112 | → |
| Knights Landing | Census-Designated Place | Yolo | 692 | 968 | 995 | 1,117 | → |
| Knightsen | Census-Designated Place | Contra Costa | 1,132 | 1,384 | 1,568 | 1,596 | → |
| La Cañada Flintridge | City | Los Angeles | 19,148 | 20,332 | 20,254 | 20,574 | → |
| La Crescenta-Montrose | Census-Designated Place | Los Angeles | 18,196 | 18,532 | 19,653 | 19,997 | → |
| La Cresta | Census-Designated Place | Kern | 6,726 | 8,283 | 8,589 | 8,787 | → |
| La Grange | Census-Designated Place | Stanislaus | ... | ... | 57 | 166 | → |
| La Habra | City | Orange | 53,096 | 60,605 | 61,447 | 63,123 | → |
| La Habra Heights | City | Los Angeles | 5,372 | 5,147 | 5,308 | 5,682 | → |
| La Honda | Census-Designated Place | San Mateo | 1,167 | 879 | 928 | 979 | → |
| La Mesa | City | San Diego | 52,976 | 54,813 | 57,014 | 61,114 | → |
| La Mirada | City | Los Angeles | 40,455 | 46,783 | 48,527 | 48,682 | → |
| La Palma | City | Orange | 15,349 | 15,478 | 15,537 | 15,588 | → |
| La Porte | Census-Designated Place | Plumas | 66 | 43 | 26 | 65 | → |
| La Presa | Census-Designated Place | San Diego | 31,380 | 32,721 | 34,169 | 35,033 | → |
| La Puente | City | Los Angeles | 36,833 | 41,307 | 39,832 | 38,061 | → |
| La Quinta | City | Riverside | 11,397 | 24,073 | 37,462 | 37,647 | → |
| La Riviera | Census-Designated Place | Sacramento | 11,814 | 11,032 | 10,802 | 11,252 | → |
| La Selva Beach | Census-Designated Place | Santa Cruz | 3,349 | 2,847 | 2,843 | 2,531 | → |
| La Verne | City | Los Angeles | 30,800 | 31,795 | 30,917 | 31,589 | → |
| La Vina | Census-Designated Place | Madera | ... | 241 | 279 | 637 | → |
| Ladera | Census-Designated Place | San Mateo | 1,375 | 1,245 | 1,426 | 1,557 | → |
| Ladera Heights | Census-Designated Place | Los Angeles | 7,806 | 6,568 | 6,498 | 6,654 | → |
| Ladera Ranch | Census-Designated Place | Orange | 64 | 356 | 22,980 | 26,170 | → |
| Lafayette | City | Contra Costa | 23,095 | 23,988 | 23,789 | 25,392 | → |
| Laguna Beach | City | Orange | 23,243 | 23,702 | 22,743 | 23,038 | → |
| Laguna Hills | City | Orange | 31,333 | 33,297 | 30,679 | 31,367 | → |
| Laguna Niguel | City | Orange | 45,049 | 62,763 | 62,993 | 64,346 | → |
| Laguna Woods | City | Orange | 15,628 | 16,190 | 15,991 | 17,646 | → |
| Lagunitas-Forest Knolls | Census-Designated Place | Marin | 1,509 | 1,835 | 1,819 | 1,924 | → |
| Lake Almanor Country Club | Census-Designated Place | Plumas | 611 | 847 | 419 | 451 | → |
| Lake Almanor Peninsula | Census-Designated Place | Plumas | 321 | 336 | 356 | 366 | → |
| Lake Almanor West | Census-Designated Place | Plumas | 240 | 329 | 270 | 211 | → |
| Lake Arrowhead | Census-Designated Place | San Bernardino | 8,867 | 12,330 | 12,424 | 12,401 | → |
| Lake California | Census-Designated Place | Tehama | 761 | 427 | 3,054 | 3,377 | → |
| Lake City | Census-Designated Place | Modoc | 49 | 40 | 61 | 71 | → |
| Lake Davis | Census-Designated Place | Plumas | ... | 23 | 45 | 72 | → |
| Lake Don Pedro | Census-Designated Place | Mariposa | 702 | 974 | 1,497 | 1,765 | → |
| Lake Elsinore | City | Riverside | 19,662 | 29,591 | 53,301 | 70,250 | → |
| Lake Forest | City | Orange | 59,044 | 76,549 | 77,445 | 85,864 | → |
| Lake Hughes | Census-Designated Place | Los Angeles | 231 | 489 | 649 | 544 | → |
| Lake Isabella | Census-Designated Place | Kern | 3,549 | 3,315 | 3,466 | 3,573 | → |
| Lake Los Angeles | Census-Designated Place | Los Angeles | 11,019 | 11,523 | 12,328 | 13,187 | → |
| Lake Mathews | Census-Designated Place | Riverside | 3,643 | 4,087 | 5,890 | 5,972 | → |
| Lake Nacimiento | Census-Designated Place | San Luis Obispo | 1,854 | 2,176 | 2,411 | 2,956 | → |
| Lake of the Pines | Census-Designated Place | Nevada | 3,890 | 3,956 | 4,464 | 4,301 | → |
| Lake of the Woods | Census-Designated Place | Kern | 746 | 833 | 917 | 790 | → |
| Lake Riverside | Census-Designated Place | Riverside | 309 | 599 | 1,173 | 1,375 | → |
| Lake San Marcos | Census-Designated Place | San Diego | 3,395 | 3,875 | 4,437 | 5,328 | → |
| Lake Shastina | Census-Designated Place | Siskiyou | 849 | 1,322 | 1,921 | 2,401 | → |
| Lake Sherwood | Census-Designated Place | Ventura | 390 | 1,073 | 1,527 | 1,759 | → |
| Lake Wildwood | Census-Designated Place | Nevada | 4,182 | 4,868 | 4,991 | 5,158 | → |
| Lakehead | Census-Designated Place | Shasta | 419 | 327 | 461 | 469 | → |
| Lakeland Village | Census-Designated Place | Riverside | 7,325 | 9,463 | 11,541 | 12,364 | → |
| Lakeport | City | Lake | 4,547 | 4,918 | 4,754 | 5,034 | → |
| Lakeside | Census-Designated Place | Kern | 415 | 566 | 746 | 843 | → |
| Lakeside | Census-Designated Place | San Diego | 19,079 | 20,715 | 20,648 | 21,152 | → |
| Lakeview | Census-Designated Place | Riverside | 1,448 | 1,619 | 2,104 | 1,977 | → |
| Lakewood | City | Los Angeles | 73,512 | 79,355 | 80,086 | 82,496 | → |
| Lamont | Census-Designated Place | Kern | 11,517 | 13,296 | 15,120 | 14,049 | → |
| Lanare | Census-Designated Place | Fresno | 354 | 540 | 589 | 540 | → |
| Lancaster | City | Los Angeles | 97,427 | 118,487 | 156,653 | 173,584 | → |
| Larkfield-Wikiup | Census-Designated Place | Sonoma | 7,705 | 8,792 | 8,884 | 8,492 | → |
| Larkspur | City | Marin | 11,070 | 11,997 | 11,914 | 13,058 | → |
| Las Flores | Census-Designated Place | Orange | ... | 5,625 | 5,971 | 5,995 | → |
| Las Flores | Census-Designated Place | Tehama | 168 | 172 | 187 | 190 | → |
| Las Lomas | Census-Designated Place | Monterey | 2,127 | 3,078 | 3,024 | 3,046 | → |
| Lathrop | City | San Joaquin | 7,066 | 11,053 | 17,588 | 28,730 | → |
| Laton | Census-Designated Place | Fresno | 1,536 | 1,236 | 1,892 | 1,622 | → |
| Lawndale | City | Los Angeles | 27,315 | 31,760 | 32,769 | 31,821 | → |
| Laytonville | Census-Designated Place | Mendocino | 1,072 | 1,301 | 1,227 | 1,152 | → |
| Le Grand | Census-Designated Place | Merced | 1,166 | 1,760 | 1,659 | 1,592 | → |
| Lebec | Census-Designated Place | Kern | 1,003 | 1,285 | 1,468 | 1,239 | → |
| Lee Vining | Census-Designated Place | Mono | 174 | 218 | 222 | 217 | → |
| Leggett | Census-Designated Place | Mendocino | ... | 48 | 122 | 77 | → |
| Lemon Cove | Census-Designated Place | Tulare | 213 | 298 | 308 | 298 | → |
| Lemon Grove | City | San Diego | 23,808 | 24,956 | 25,318 | 27,781 | → |
| Lemon Hill | Census-Designated Place | Sacramento | 12,421 | 14,368 | 13,729 | 14,496 | → |
| Lemoore | City | Kings | 14,148 | 19,787 | 24,534 | 27,061 | → |
| Lemoore Station | Census-Designated Place | Kings | ... | 5,749 | 7,438 | 6,568 | → |
| Lennox | Census-Designated Place | Los Angeles | 21,232 | 22,950 | 22,753 | 20,323 | → |
| Lenwood | Census-Designated Place | San Bernardino | 2,749 | 2,814 | 3,543 | 3,623 | → |
| Leona Valley | Census-Designated Place | Los Angeles | 1,452 | 1,287 | 1,607 | 1,555 | → |
| Lewiston | Census-Designated Place | Trinity | 1,117 | 1,305 | 1,193 | 1,222 | → |
| Lexington Hills | Census-Designated Place | Santa Clara | 1,917 | 2,454 | 2,421 | 2,492 | → |
| Likely | Census-Designated Place | Modoc | ... | 46 | 63 | 58 | → |
| Lincoln | City | Placer | 7,354 | 11,256 | 42,922 | 49,748 | → |
| Lincoln Village | Census-Designated Place | San Joaquin | 4,236 | 4,216 | 4,381 | 4,401 | → |
| Linda | Census-Designated Place | Yuba | 13,259 | 13,474 | 17,773 | 21,654 | → |
| Lindcove | Census-Designated Place | Tulare | 221 | 60 | 66 | 189 | → |
| Linden | Census-Designated Place | San Joaquin | 1,339 | 1,103 | 1,784 | 1,863 | → |
| Lindsay | City | Tulare | 8,381 | 10,382 | 11,797 | 12,679 | → |
| Linnell Camp | Census-Designated Place | Tulare | 997 | 349 | 849 | 696 | → |
| Litchfield | Census-Designated Place | Lassen | 249 | 50 | 195 | 160 | → |
| Little Grass Valley | Census-Designated Place | Plumas | ... | ... | 2 | 25 | → |
| Little River | Census-Designated Place | Mendocino | 27 | 92 | 117 | 94 | → |
| Little Valley | Census-Designated Place | Lassen | ... | ... | 57 | 84 | → |
| Littlerock | Census-Designated Place | Los Angeles | 1,320 | 1,402 | 1,377 | 1,535 | → |
| Live Oak | Census-Designated Place | Santa Cruz | 15,212 | 16,628 | 17,158 | 17,038 | → |
| Live Oak | City | Sutter | 4,458 | 6,240 | 8,465 | 9,113 | → |
| Livermore | City | Alameda | 57,304 | 73,410 | 81,497 | 87,966 | → |
| Livingston | City | Merced | 7,548 | 10,484 | 13,031 | 14,171 | → |
| Lockeford | Census-Designated Place | San Joaquin | 2,722 | 3,179 | 3,233 | 3,333 | → |
| Lockwood | Census-Designated Place | Amador | 328 | 536 | 484 | 495 | → |
| Lockwood | Census-Designated Place | Monterey | 235 | 271 | 379 | 368 | → |
| Lodi | City | San Joaquin | 51,980 | 57,293 | 62,121 | 66,339 | → |
| Lodoga | Census-Designated Place | Colusa | 76 | 92 | 197 | 184 | → |
| Loleta | Census-Designated Place | Humboldt | 635 | 707 | 783 | 828 | → |
| Loma Linda | City | San Bernardino | 18,434 | 19,125 | 23,282 | 24,816 | → |
| Loma Mar | Census-Designated Place | San Mateo | 82 | 59 | 113 | 134 | → |
| Loma Rica | Census-Designated Place | Yuba | 1,852 | 2,075 | 2,368 | 2,409 | → |
| Lomita | City | Los Angeles | 19,607 | 20,036 | 20,220 | 20,952 | → |
| Lompico | Census-Designated Place | Santa Cruz | 933 | 987 | 1,137 | 1,154 | → |
| Lompoc | City | Santa Barbara | 37,689 | 41,133 | 42,436 | 44,444 | → |
| London | Census-Designated Place | Tulare | 1,504 | 1,848 | 1,869 | 1,518 | → |
| Lone Pine | Census-Designated Place | Inyo | 2,062 | 1,867 | 2,035 | 2,014 | → |
| Long Barn | Census-Designated Place | Tuolumne | 132 | 196 | 155 | 162 | → |
| Long Beach | City | Los Angeles | 429,789 | 461,412 | 462,189 | 466,766 | → |
| Lookout | Census-Designated Place | Modoc | 35 | 53 | 84 | 68 | → |
| Loomis | Town | Placer | 5,736 | 6,170 | 6,417 | 6,826 | → |
| Los Alamitos | City | Orange | 11,799 | 11,547 | 11,352 | 11,783 | → |
| Los Alamos | Census-Designated Place | Santa Barbara | 434 | 1,097 | 1,340 | 1,839 | → |
| Los Altos | City | Santa Clara | 26,605 | 28,063 | 29,075 | 31,466 | → |
| Los Altos Hills | Town | Santa Clara | 8,036 | 8,474 | 8,065 | 8,513 | → |
| Los Angeles | City | Los Angeles | 3,485,567 | 3,694,257 | 3,793,206 | 3,899,449 | → |
| Los Banos | City | Merced | 14,749 | 25,907 | 35,967 | 45,566 | → |
| Los Berros | Census-Designated Place | San Luis Obispo | 461 | 477 | 641 | 623 | → |
| Los Gatos | Town | Santa Clara | 29,618 | 29,892 | 29,717 | 33,542 | → |
| Los Molinos | Census-Designated Place | Tehama | 1,709 | 1,952 | 2,037 | 2,098 | → |
| Los Olivos | Census-Designated Place | Santa Barbara | 1,057 | 1,191 | 1,325 | 1,202 | → |
| Los Osos | Census-Designated Place | San Luis Obispo | 14,607 | 14,581 | 14,276 | 14,465 | → |
| Los Ranchos | Census-Designated Place | San Luis Obispo | 1,269 | 1,531 | 1,477 | 1,516 | → |
| Lost Hills | Census-Designated Place | Kern | 1,212 | 1,938 | 2,412 | 2,370 | → |
| Lower Lake | Census-Designated Place | Lake | 1,153 | 1,353 | 1,294 | 1,276 | → |
| Loyalton | City | Sierra | 933 | 907 | 766 | 741 | → |
| Loyola | Census-Designated Place | Santa Clara | 2,741 | 2,965 | 3,261 | 3,491 | → |
| Lucas Valley-Marinwood | Census-Designated Place | Marin | 5,982 | 6,357 | 6,094 | 6,259 | → |
| Lucerne | Census-Designated Place | Lake | 2,592 | 2,870 | 3,067 | 3,266 | → |
| Lucerne Valley | Census-Designated Place | San Bernardino | 3,931 | 4,708 | 5,811 | 5,331 | → |
| Lynwood | City | Los Angeles | 61,855 | 70,202 | 69,758 | 67,238 | → |
| Lytle Creek | Census-Designated Place | San Bernardino | 346 | 658 | 701 | 725 | → |
| Mabie | Census-Designated Place | Plumas | 65 | 135 | 161 | 181 | → |
| Macdoel | Census-Designated Place | Siskiyou | ... | 140 | 133 | 86 | → |
| Mad River | Census-Designated Place | Trinity | 237 | 243 | 420 | 361 | → |
| Madeline | Census-Designated Place | Lassen | ... | ... | 7 | 21 | → |
| Madera | City | Madera | 29,477 | 43,959 | 61,909 | 66,281 | → |
| Madera Acres | Census-Designated Place | Madera | 5,245 | 7,741 | 9,163 | 9,162 | → |
| Madera Ranchos | Census-Designated Place | Madera | 3,201 | 3,417 | 3,546 | 3,623 | → |
| Madison | Census-Designated Place | Yolo | 474 | 825 | 503 | 581 | → |
| Magalia | Census-Designated Place | Butte | 8,987 | 10,569 | 11,310 | 7,795 | → |
| Malaga | Census-Designated Place | Fresno | 843 | 762 | 947 | 884 | → |
| Malibu | City | Los Angeles | 9,852 | 12,573 | 12,629 | 10,649 | → |
| Mammoth Lakes | Town | Mono | 4,784 | 7,092 | 8,234 | 7,201 | → |
| Manchester | Census-Designated Place | Mendocino | 119 | 130 | 195 | 159 | → |
| Manhattan Beach | City | Los Angeles | 31,991 | 33,814 | 35,130 | 35,499 | → |
| Manila | Census-Designated Place | Humboldt | 686 | 556 | 784 | 798 | → |
| Manteca | City | San Joaquin | 41,760 | 49,715 | 67,338 | 83,555 | → |
| Manton | Census-Designated Place | Tehama | 308 | 372 | 347 | 310 | → |
| March ARB | Census-Designated Place | Riverside | 5,751 | 1,016 | 1,159 | 809 | → |
| Maricopa | City | Kern | 1,189 | 1,113 | 1,154 | 1,024 | → |
| Marin City | Census-Designated Place | Marin | 2,009 | 2,631 | 2,666 | 2,993 | → |
| Marina | City | Monterey | 26,508 | 20,012 | 19,713 | 22,355 | → |
| Marina del Rey | Census-Designated Place | Los Angeles | 9,521 | 8,176 | 8,866 | 11,373 | → |
| Mariposa | Census-Designated Place | Mariposa | 1,152 | 1,373 | 1,446 | 1,526 | → |
| Markleeville | Census-Designated Place | Alpine | 147 | 197 | 210 | 191 | → |
| Martell | Census-Designated Place | Amador | 205 | 111 | 282 | 207 | → |
| Martinez | City | Contra Costa | 33,556 | 35,975 | 36,037 | 37,268 | → |
| Marysville | City | Yuba | 12,325 | 12,273 | 12,051 | 12,839 | → |
| Matheny | Census-Designated Place | Tulare | 669 | 944 | 1,212 | 1,125 | → |
| Mather | Census-Designated Place | Sacramento | 5,308 | 1,279 | 4,451 | 4,698 | → |
| Maxwell | Census-Designated Place | Colusa | 900 | 1,066 | 1,103 | 1,067 | → |
| Mayfair | Census-Designated Place | Fresno | 3,930 | 4,289 | 4,589 | 4,831 | → |
| Mayflower Village | Census-Designated Place | Los Angeles | 4,978 | 5,081 | 5,515 | 5,402 | → |
| Maywood | City | Los Angeles | 27,907 | 28,105 | 27,380 | 25,125 | → |
| McArthur | Census-Designated Place | Shasta | 242 | 365 | 338 | 334 | → |
| McClellan Park | Census-Designated Place | Sacramento | 593 | 654 | 743 | 926 | → |
| McClenney Tract | Census-Designated Place | Tulare | ... | ... | 10 | 15 | → |
| McCloud | Census-Designated Place | Siskiyou | 1,555 | 1,343 | 1,101 | 945 | → |
| McFarland | City | Kern | 7,095 | 9,699 | 12,707 | 14,235 | → |
| McGee Creek | Census-Designated Place | Mono | 40 | 70 | 41 | 45 | → |
| McKinleyville | Census-Designated Place | Humboldt | 10,749 | 13,599 | 15,177 | 16,262 | → |
| McKittrick | Census-Designated Place | Kern | 162 | 160 | 115 | 102 | → |
| McSwain | Census-Designated Place | Merced | 2,038 | 3,056 | 4,171 | 4,480 | → |
| Mead Valley | Census-Designated Place | Riverside | 9,570 | 12,766 | 18,510 | 19,819 | → |
| Meadow Valley | Census-Designated Place | Plumas | 408 | 575 | 464 | 453 | → |
| Meadow Vista | Census-Designated Place | Placer | 3,067 | 3,096 | 3,217 | 3,263 | → |
| Meadowbrook | Census-Designated Place | Riverside | 2,097 | 2,540 | 3,185 | 3,142 | → |
| Mecca | Census-Designated Place | Riverside | 2,832 | 6,678 | 8,577 | 8,219 | → |
| Meiners Oaks | Census-Designated Place | Ventura | 3,586 | 4,039 | 3,850 | 3,911 | → |
| Mendocino | Census-Designated Place | Mendocino | 896 | 824 | 894 | 932 | → |
| Mendota | City | Fresno | 6,827 | 7,784 | 11,306 | 12,598 | → |
| Menifee | City | Riverside | 29,026 | 41,740 | 77,384 | 102,523 | → |
| Menlo Park | City | San Mateo | 28,696 | 30,872 | 32,014 | 33,782 | → |
| Mentone | Census-Designated Place | San Bernardino | 5,925 | 7,803 | 8,720 | 9,557 | → |
| Merced | City | Merced | 57,102 | 63,651 | 78,959 | 86,374 | → |
| Meridian | Census-Designated Place | Sutter | 420 | 341 | 358 | 304 | → |
| Mesa | Census-Designated Place | Inyo | 174 | 214 | 251 | 275 | → |
| Mesa Verde | Census-Designated Place | Riverside | 891 | 1,040 | 1,023 | 766 | → |
| Mesa Vista | Census-Designated Place | Alpine | 47 | 182 | 200 | 217 | → |
| Mettler | Census-Designated Place | Kern | ... | 157 | 136 | 90 | → |
| Mexican Colony | Census-Designated Place | Kern | 137 | 208 | 281 | 283 | → |
| Meyers | Census-Designated Place | El Dorado | 1,482 | 1,958 | 1,829 | 2,163 | → |
| Mi-Wuk Village | Census-Designated Place | Tuolumne | 999 | 1,290 | 941 | 935 | → |
| Middletown | Census-Designated Place | Lake | 818 | 889 | 1,323 | 1,114 | → |
| Midpines | Census-Designated Place | Mariposa | 317 | 176 | 313 | 379 | → |
| Midway City | Census-Designated Place | Orange | 5,262 | 8,052 | 8,485 | 8,825 | → |
| Milford | Census-Designated Place | Lassen | 135 | 121 | 167 | 147 | → |
| Mill Valley | City | Marin | 12,904 | 13,577 | 13,901 | 14,231 | → |
| Millbrae | City | San Mateo | 20,395 | 20,677 | 21,561 | 23,212 | → |
| Millerton | Census-Designated Place | Fresno | ... | ... | 6 | 686 | → |
| Millville | Census-Designated Place | Shasta | 434 | 610 | 727 | 724 | → |
| Milpitas | City | Santa Clara | 50,753 | 62,679 | 66,824 | 80,269 | → |
| Mineral | Census-Designated Place | Tehama | 347 | 143 | 123 | 136 | → |
| Minkler | Census-Designated Place | Fresno | 1,084 | 761 | 1,003 | 867 | → |
| Mira Monte | Census-Designated Place | Ventura | 7,246 | 6,798 | 6,305 | 6,618 | → |
| Miranda | Census-Designated Place | Humboldt | 108 | 112 | 520 | 441 | → |
| Mission Canyon | Census-Designated Place | Santa Barbara | 2,645 | 2,610 | 2,381 | 2,540 | → |
| Mission Hills | Census-Designated Place | Santa Barbara | 3,112 | 3,142 | 3,576 | 3,571 | → |
| Mission Viejo | City | Orange | 79,494 | 92,057 | 93,101 | 93,638 | → |
| Modesto | City | Stanislaus | 165,809 | 191,103 | 203,057 | 218,504 | → |
| Modjeska | Census-Designated Place | Orange | 258 | 547 | 443 | 632 | → |
| Mohawk Vista | Census-Designated Place | Plumas | 169 | 121 | 159 | 107 | → |
| Mojave | Census-Designated Place | Kern | 4,273 | 3,836 | 4,238 | 4,699 | → |
| Mokelumne Hill | Census-Designated Place | Calaveras | 679 | 774 | 646 | 691 | → |
| Monmouth | Census-Designated Place | Fresno | 112 | 107 | 152 | 120 | → |
| Mono City | Census-Designated Place | Mono | 71 | 173 | 172 | 224 | → |
| Mono Vista | Census-Designated Place | Tuolumne | 2,599 | 3,072 | 3,127 | 3,236 | → |
| Monrovia | City | Los Angeles | 35,423 | 36,911 | 36,600 | 37,934 | → |
| Monson | Census-Designated Place | Tulare | 115 | 115 | 145 | 152 | → |
| Montague | City | Siskiyou | 1,403 | 1,444 | 1,443 | 1,223 | → |
| Montalvin Manor | Census-Designated Place | Contra Costa | 2,404 | 3,259 | 2,876 | 3,099 | → |
| Montara | Census-Designated Place | San Mateo | 2,552 | 2,950 | 2,909 | 2,833 | → |
| Montclair | City | San Bernardino | 28,458 | 34,065 | 36,649 | 37,890 | → |
| Monte Rio | Census-Designated Place | Sonoma | 1,058 | 1,104 | 1,152 | 1,080 | → |
| Monte Sereno | City | Santa Clara | 3,268 | 3,464 | 3,330 | 3,480 | → |
| Montebello | City | Los Angeles | 59,552 | 62,322 | 62,483 | 62,634 | → |
| Montecito | Census-Designated Place | Santa Barbara | 9,374 | 10,000 | 8,965 | 8,638 | → |
| Monterey | City | Monterey | 32,157 | 29,584 | 27,774 | 30,226 | → |
| Monterey Park | City | Los Angeles | 60,704 | 59,969 | 60,271 | 61,109 | → |
| Monterey Park Tract | Census-Designated Place | Stanislaus | 63 | 72 | 133 | 164 | → |
| Montgomery Creek | Census-Designated Place | Shasta | 107 | 96 | 163 | 176 | → |
| Monument Hills | Census-Designated Place | Yolo | 565 | 643 | 1,542 | 1,702 | → |
| Moorpark | City | Ventura | 25,521 | 31,340 | 34,594 | 36,290 | → |
| Morada | Census-Designated Place | San Joaquin | 3,570 | 3,726 | 3,828 | 4,054 | → |
| Moraga | Town | Contra Costa | 16,054 | 16,333 | 16,006 | 16,883 | → |
| Moreno Valley | City | Riverside | 118,717 | 142,634 | 193,330 | 208,644 | → |
| Morgan Hill | City | Santa Clara | 24,323 | 33,731 | 37,973 | 45,479 | → |
| Morongo Valley | Census-Designated Place | San Bernardino | 2,138 | 2,981 | 3,552 | 3,514 | → |
| Morro Bay | City | San Luis Obispo | 9,668 | 10,347 | 10,235 | 10,758 | → |
| Moskowite Corner | Census-Designated Place | Napa | 40 | 54 | 211 | 237 | → |
| Moss Beach | Census-Designated Place | San Mateo | 3,002 | 2,827 | 3,103 | 3,214 | → |
| Moss Landing | Census-Designated Place | Monterey | 196 | 300 | 204 | 237 | → |
| Mount Hebron | Census-Designated Place | Siskiyou | ... | 92 | 95 | 103 | → |
| Mount Hermon | Census-Designated Place | Santa Cruz | 835 | 1,012 | 1,037 | 1,110 | → |
| Mount Laguna | Census-Designated Place | San Diego | 23 | 33 | 57 | 74 | → |
| Mount Shasta | City | Siskiyou | 3,390 | 3,612 | 3,393 | 3,225 | → |
| Mountain Center | Census-Designated Place | Riverside | 182 | 66 | 63 | 66 | → |
| Mountain Gate | Census-Designated Place | Shasta | 666 | 119 | 943 | 815 | → |
| Mountain House | Census-Designated Place | San Joaquin | 243 | 272 | 9,828 | 24,499 | → |
| Mountain Meadows | Census-Designated Place | Kern | 34 | 35 | 244 | 303 | → |
| Mountain Mesa | Census-Designated Place | Kern | 711 | 716 | 777 | 823 | → |
| Mountain Ranch | Census-Designated Place | Calaveras | 237 | 98 | 188 | 223 | → |
| Mountain View | Census-Designated Place | Contra Costa | 2,161 | 2,468 | 2,372 | 2,622 | → |
| Mountain View | City | Santa Clara | 66,044 | 71,255 | 73,565 | 82,537 | → |
| Mountain View Acres | Census-Designated Place | San Bernardino | 2,469 | 2,521 | 3,130 | 3,337 | → |
| Mt. Bullion | Census-Designated Place | Mariposa | ... | ... | ... | 154 | → |
| Muir Beach | Census-Designated Place | Marin | 298 | 295 | 310 | 304 | → |
| Murphys | Census-Designated Place | Calaveras | 1,024 | 1,218 | 1,339 | 1,995 | → |
| Murrieta | City | Riverside | 22,524 | 51,256 | 103,726 | 110,955 | → |
| Muscoy | Census-Designated Place | San Bernardino | 7,541 | 8,919 | 10,644 | 10,719 | → |
| Myers Flat | Census-Designated Place | Humboldt | 51 | 136 | 146 | 90 | → |
| Myrtletown | Census-Designated Place | Humboldt | 4,783 | 4,459 | 4,675 | 4,882 | → |
| Napa | City | Napa | 62,486 | 72,686 | 77,094 | 79,305 | → |
| National City | City | San Diego | 54,288 | 54,086 | 58,557 | 58,722 | → |
| Needles | City | San Bernardino | 5,208 | 4,889 | 4,826 | 4,931 | → |
| Nevada City | City | Nevada | 2,854 | 3,040 | 3,110 | 3,148 | → |
| New Cuyama | Census-Designated Place | Santa Barbara | 350 | 343 | 517 | 542 | → |
| New Pine Creek | Census-Designated Place | Modoc | 54 | 89 | 98 | 87 | → |
| Newark | City | Alameda | 37,862 | 42,470 | 42,573 | 47,524 | → |
| Newcastle | Census-Designated Place | Placer | 1,129 | 1,268 | 1,224 | 1,321 | → |
| Newell | Census-Designated Place | Modoc | 397 | 473 | 449 | 301 | → |
| Newman | City | Stanislaus | 4,164 | 6,723 | 10,265 | 12,387 | → |
| Newport Beach | City | Orange | 66,501 | 78,761 | 85,211 | 85,229 | → |
| Nicasio | Census-Designated Place | Marin | 51 | 35 | 96 | 81 | → |
| Nice | Census-Designated Place | Lake | 2,017 | 2,509 | 2,731 | 2,929 | → |
| Nicolaus | Census-Designated Place | Sutter | 131 | 132 | 211 | 176 | → |
| Niland | Census-Designated Place | Imperial | 1,183 | 1,143 | 1,006 | 756 | → |
| Nipinnawasee | Census-Designated Place | Madera | 303 | 391 | 475 | 434 | → |
| Nipomo | Census-Designated Place | San Luis Obispo | 9,769 | 13,373 | 16,714 | 18,176 | → |
| Norco | City | Riverside | 23,351 | 23,984 | 27,216 | 26,299 | → |
| Nord | Census-Designated Place | Butte | 268 | 300 | 320 | 286 | → |
| Norris Canyon | Census-Designated Place | Contra Costa | 35 | 34 | 957 | 1,313 | → |
| North Auburn | Census-Designated Place | Placer | 10,301 | 11,847 | 13,022 | 13,452 | → |
| North Edwards | Census-Designated Place | Kern | 1,502 | 1,227 | 1,058 | 1,054 | → |
| North El Monte | Census-Designated Place | Los Angeles | 3,384 | 3,703 | 3,723 | 3,730 | → |
| North Fair Oaks | Census-Designated Place | San Mateo | 13,912 | 15,440 | 14,687 | 14,027 | → |
| North Fork | Census-Designated Place | Madera | 2,016 | 2,034 | 2,687 | 3,250 | → |
| North Gate | Census-Designated Place | Contra Costa | 400 | 440 | 679 | 667 | → |
| North Highlands | Census-Designated Place | Sacramento | 41,099 | 44,187 | 42,694 | 49,327 | → |
| North Lakeport | Census-Designated Place | Lake | 2,583 | 2,879 | 3,314 | 3,547 | → |
| North Richmond | Census-Designated Place | Contra Costa | 2,228 | 2,896 | 3,717 | 4,175 | → |
| North San Juan | Census-Designated Place | Nevada | 118 | 103 | 269 | 245 | → |
| North Shore | Census-Designated Place | Riverside | 476 | 1,343 | 3,477 | 3,585 | → |
| North Tustin | Census-Designated Place | Orange | 24,930 | 24,460 | 24,917 | 25,718 | → |
| Norwalk | City | Los Angeles | 94,232 | 103,539 | 105,549 | 102,766 | → |
| Novato | City | Marin | 47,636 | 47,375 | 51,873 | 53,210 | → |
| Nubieber | Census-Designated Place | Lassen | 33 | 45 | 50 | 19 | → |
| Nuevo | Census-Designated Place | Riverside | 3,396 | 4,609 | 6,447 | 6,733 | → |
| Oak Glen | Census-Designated Place | San Bernardino | 685 | 445 | 638 | 602 | → |
| Oak Hills | Census-Designated Place | San Bernardino | 2,815 | 5,622 | 8,879 | 9,450 | → |
| Oak Park | Census-Designated Place | Ventura | 8,760 | 14,215 | 13,811 | 13,898 | → |
| Oak Run | Census-Designated Place | Shasta | 89 | 154 | 161 | 158 | → |
| Oak Shores | Census-Designated Place | San Luis Obispo | 204 | 288 | 337 | 316 | → |
| Oak View | Census-Designated Place | Ventura | 5,757 | 6,415 | 5,747 | 6,215 | → |
| Oakdale | City | Stanislaus | 12,144 | 15,764 | 20,759 | 23,177 | → |
| Oakhurst | Census-Designated Place | Madera | 5,557 | 6,497 | 6,562 | 5,945 | → |
| Oakland | City | Alameda | 372,248 | 399,334 | 390,781 | 440,679 | → |
| Oakley | City | Contra Costa | 17,146 | 25,726 | 35,421 | 43,354 | → |
| Oakville | Census-Designated Place | Napa | ... | ... | 71 | 49 | → |
| Oasis | Census-Designated Place | Riverside | 2,057 | 4,873 | 6,890 | 4,468 | → |
| Occidental | Census-Designated Place | Sonoma | 1,201 | 1,272 | 1,115 | 1,132 | → |
| Oceano | Census-Designated Place | San Luis Obispo | 6,169 | 7,260 | 7,286 | 7,183 | → |
| Oceanside | City | San Diego | 128,215 | 160,645 | 167,560 | 174,160 | → |
| Ocotillo | Census-Designated Place | Imperial | 344 | 296 | 266 | 215 | → |
| Oildale | Census-Designated Place | Kern | 26,553 | 27,885 | 32,940 | 36,135 | → |
| Ojai | City | Ventura | 7,933 | 7,853 | 7,469 | 7,632 | → |
| Olancha | Census-Designated Place | Inyo | 45 | 134 | 192 | 131 | → |
| Old Fig Garden | Census-Designated Place | Fresno | 5,225 | 5,306 | 5,365 | 5,477 | → |
| Old River | Census-Designated Place | Kern | 143 | 128 | 139 | 123 | → |
| Old Station | Census-Designated Place | Shasta | ... | 55 | 51 | 64 | → |
| Old Stine | Census-Designated Place | Kern | 3,346 | 3,616 | 3,668 | 3,841 | → |
| Olde Stockdale | Census-Designated Place | Kern | 1,032 | 573 | 581 | 568 | → |
| Olivehurst | Census-Designated Place | Yuba | 10,342 | 11,410 | 15,132 | 16,595 | → |
| Ono | Census-Designated Place | Shasta | 31 | 53 | 60 | 93 | → |
| Ontario | City | San Bernardino | 135,001 | 158,011 | 163,931 | 175,264 | → |
| Onyx | Census-Designated Place | Kern | 267 | 476 | 475 | 457 | → |
| Orange | City | Orange | 111,399 | 129,744 | 136,778 | 139,930 | → |
| Orange Blossom | Census-Designated Place | Stanislaus | 374 | 606 | 633 | 1,068 | → |
| Orange Cove | City | Fresno | 5,599 | 7,739 | 9,735 | 9,750 | → |
| Orangevale | Census-Designated Place | Sacramento | 35,053 | 34,255 | 33,960 | 35,569 | → |
| Orcutt | Census-Designated Place | Santa Barbara | 26,577 | 28,830 | 28,905 | 32,034 | → |
| Orick | Census-Designated Place | Humboldt | 395 | 391 | 357 | 328 | → |
| Orinda | City | Contra Costa | 16,766 | 17,425 | 17,759 | 19,502 | → |
| Orland | City | Glenn | 5,175 | 6,296 | 7,346 | 8,324 | → |
| Orosi | Census-Designated Place | Tulare | 5,486 | 7,318 | 8,770 | 8,329 | → |
| Oroville | City | Butte | 16,235 | 16,733 | 18,722 | 20,165 | → |
| Oroville East | Census-Designated Place | Butte | 7,208 | 7,548 | 7,645 | 8,038 | → |
| Oxnard | City | Ventura | 142,454 | 170,179 | 198,066 | 202,059 | → |
| Pacheco | Census-Designated Place | Contra Costa | 3,325 | 3,562 | 3,685 | 4,183 | → |
| Pacific Grove | City | Monterey | 16,159 | 15,490 | 15,044 | 15,102 | → |
| Pacifica | City | San Mateo | 37,612 | 38,358 | 37,341 | 38,661 | → |
| Pajaro | Census-Designated Place | Monterey | 3,550 | 3,384 | 3,070 | 2,882 | → |
| Pajaro Dunes | Census-Designated Place | Santa Cruz | 256 | 205 | 144 | 122 | → |
| Pala | Census-Designated Place | San Diego | 790 | 1,456 | 1,212 | 1,490 | → |
| Palermo | Census-Designated Place | Butte | 4,541 | 4,828 | 5,382 | 5,555 | → |
| Palm Desert | City | Riverside | 32,620 | 44,274 | 48,449 | 51,165 | → |
| Palm Springs | City | Riverside | 40,355 | 42,700 | 44,554 | 44,575 | → |
| Palmdale | City | Los Angeles | 78,023 | 116,891 | 152,731 | 169,415 | → |
| Palo Alto | City | Santa Clara | 55,850 | 58,623 | 64,347 | 68,585 | → |
| Palo Cedro | Census-Designated Place | Shasta | 2,540 | 2,634 | 2,649 | 2,931 | → |
| Palo Verde | Census-Designated Place | Imperial | 221 | 210 | 171 | 152 | → |
| Palos Verdes Estates | City | Los Angeles | 13,542 | 13,297 | 13,434 | 13,353 | → |
| Panorama Heights | Census-Designated Place | Tulare | 13 | 22 | 41 | 44 | → |
| Paradise | Town | Butte | 25,510 | 26,319 | 26,209 | 4,761 | → |
| Paradise | Census-Designated Place | Mono | 56 | 124 | 153 | 174 | → |
| Paradise Park | Census-Designated Place | Santa Cruz | 306 | 319 | 389 | 367 | → |
| Paramount | City | Los Angeles | 47,591 | 54,899 | 54,107 | 53,749 | → |
| Parklawn | Census-Designated Place | Stanislaus | 739 | 1,349 | 1,337 | 1,249 | → |
| Parksdale | Census-Designated Place | Madera | 1,911 | 2,688 | 2,621 | 3,234 | → |
| Parkway | Census-Designated Place | Sacramento | 13,123 | 13,993 | 14,670 | 15,962 | → |
| Parkwood | Census-Designated Place | Madera | 1,539 | 1,874 | 2,268 | 2,307 | → |
| Parlier | City | Fresno | 7,961 | 11,165 | 14,563 | 14,585 | → |
| Pasadena | City | Los Angeles | 131,969 | 133,842 | 137,085 | 139,622 | → |
| Pasatiempo | Census-Designated Place | Santa Cruz | 1,021 | 1,006 | 1,041 | 1,093 | → |
| Paskenta | Census-Designated Place | Tehama | ... | 56 | 112 | 110 | → |
| Patterson | City | Stanislaus | 8,690 | 11,723 | 20,629 | 23,790 | → |
| Patterson Tract | Census-Designated Place | Tulare | 1,088 | 1,198 | 1,752 | 1,888 | → |
| Patton Village | Census-Designated Place | Lassen | 562 | 718 | 702 | 632 | → |
| Paxton | Census-Designated Place | Plumas | 27 | 21 | 14 | 0 | → |
| Paynes Creek | Census-Designated Place | Tehama | ... | 107 | 57 | 54 | → |
| Pearsonville | Census-Designated Place | Inyo | ... | 27 | 17 | 8 | → |
| Penn Valley | Census-Designated Place | Nevada | 1,174 | 1,387 | 1,621 | 1,593 | → |
| Penngrove | Census-Designated Place | Sonoma | 2,407 | 2,397 | 2,522 | 2,637 | → |
| Penryn | Census-Designated Place | Placer | 664 | 677 | 831 | 1,150 | → |
| Pepperdine University | Census-Designated Place | Los Angeles | 1,459 | 1,525 | 1,666 | 2,747 | → |
| Perris | City | Riverside | 21,625 | 36,139 | 68,562 | 78,703 | → |
| Pescadero | Census-Designated Place | San Mateo | 606 | 633 | 643 | 595 | → |
| Petaluma | City | Sonoma | 43,860 | 54,533 | 57,977 | 59,799 | → |
| Petaluma Center | Census-Designated Place | Sonoma | 680 | 824 | 816 | 709 | → |
| Peters | Census-Designated Place | San Joaquin | 214 | 315 | 672 | 708 | → |
| Phelan | Census-Designated Place | San Bernardino | 7,303 | 10,188 | 14,304 | 13,859 | → |
| Phillipsville | Census-Designated Place | Humboldt | 139 | 95 | 140 | 124 | → |
| Philo | Census-Designated Place | Mendocino | 334 | 278 | 349 | 319 | → |
| Phoenix Lake | Census-Designated Place | Tuolumne | 3,453 | 3,786 | 4,269 | 4,264 | → |
| Pico Rivera | City | Los Angeles | 59,188 | 63,401 | 62,964 | 62,081 | → |
| Piedmont | City | Alameda | 10,603 | 10,973 | 10,695 | 11,277 | → |
| Pierpoint | Census-Designated Place | Tulare | ... | 58 | 52 | 59 | → |
| Pike | Census-Designated Place | Sierra | 117 | 127 | 134 | 159 | → |
| Pine Canyon | Census-Designated Place | Monterey | 1,438 | 1,112 | 1,822 | 1,871 | → |
| Pine Flat | Census-Designated Place | Tulare | ... | ... | 139 | 206 | → |
| Pine Grove | Census-Designated Place | Amador | 2,083 | 2,132 | 2,625 | 2,891 | → |
| Pine Hills | Census-Designated Place | Humboldt | 2,947 | 3,108 | 3,131 | 3,186 | → |
| Pine Mountain Club | Census-Designated Place | Kern | 1,450 | 1,600 | 2,315 | 2,422 | → |
| Pine Mountain Lake | Census-Designated Place | Tuolumne | 2,234 | 2,847 | 2,796 | 2,636 | → |
| Pine Valley | Census-Designated Place | San Diego | 1,297 | 1,501 | 1,510 | 1,645 | → |
| Pinole | City | Contra Costa | 17,150 | 19,310 | 18,330 | 19,022 | → |
| Piñon Hills | Census-Designated Place | San Bernardino | 3,798 | 5,471 | 7,272 | 7,258 | → |
| Pioneer | Census-Designated Place | Amador | 312 | 594 | 1,094 | 1,066 | → |
| Piru | Census-Designated Place | Ventura | 1,157 | 1,574 | 2,589 | 2,587 | → |
| Pismo Beach | City | San Luis Obispo | 7,685 | 8,523 | 7,650 | 8,074 | → |
| Pittsburg | City | Contra Costa | 47,741 | 56,795 | 63,266 | 76,407 | → |
| Pixley | Census-Designated Place | Tulare | 2,522 | 2,739 | 3,682 | 3,828 | → |
| Placentia | City | Orange | 41,050 | 46,546 | 50,902 | 52,726 | → |
| Placerville | City | El Dorado | 8,264 | 9,613 | 10,484 | 10,743 | → |
| Plainview | Census-Designated Place | Tulare | 836 | 970 | 896 | 846 | → |
| Planada | Census-Designated Place | Merced | 3,531 | 4,369 | 4,584 | 4,164 | → |
| Platina | Census-Designated Place | Shasta | ... | 44 | 21 | 13 | → |
| Pleasant Hill | City | Contra Costa | 31,689 | 32,432 | 33,075 | 34,611 | → |
| Pleasanton | City | Alameda | 50,984 | 63,829 | 70,274 | 79,858 | → |
| Pleasure Point | Census-Designated Place | Santa Cruz | 5,890 | 6,458 | 5,846 | 5,821 | → |
| Plumas Eureka | Census-Designated Place | Plumas | 238 | 320 | 339 | 334 | → |
| Plumas Lake | Census-Designated Place | Yuba | 86 | 72 | 5,853 | 8,126 | → |
| Plymouth | City | Amador | 901 | 999 | 987 | 1,077 | → |
| Point Arena | City | Mendocino | 407 | 477 | 449 | 463 | → |
| Point Reyes Station | Census-Designated Place | Marin | 838 | 818 | 848 | 895 | → |
| Pollock Pines | Census-Designated Place | El Dorado | 5,661 | 6,840 | 6,871 | 7,112 | → |
| Pomona | City | Los Angeles | 132,216 | 147,966 | 149,235 | 151,478 | → |
| Ponderosa | Census-Designated Place | Tulare | ... | ... | 16 | 51 | → |
| Poplar-Cotton Center | Census-Designated Place | Tulare | 1,713 | 1,496 | 2,556 | 2,370 | → |
| Port Costa | Census-Designated Place | Contra Costa | 56 | 161 | 190 | 190 | → |
| Port Hueneme | City | Ventura | 20,493 | 21,927 | 21,743 | 21,965 | → |
| Porterville | City | Tulare | 38,123 | 48,531 | 58,095 | 62,983 | → |
| Portola | City | Plumas | 2,175 | 2,227 | 2,074 | 2,098 | → |
| Portola Valley | Town | San Mateo | 4,203 | 4,422 | 4,360 | 4,457 | → |
| Posey | Census-Designated Place | Tulare | ... | ... | 10 | 23 | → |
| Poso Park | Census-Designated Place | Tulare | ... | ... | 9 | 9 | → |
| Post Mountain | Census-Designated Place | Trinity | 91 | 117 | 207 | 3,032 | → |
| Potomac Park | Census-Designated Place | Kern | 7,302 | 8,138 | 9,161 | 9,164 | → |
| Potrero | Census-Designated Place | San Diego | 336 | 332 | 656 | 648 | → |
| Potter Valley | Census-Designated Place | Mendocino | 739 | 664 | 646 | 665 | → |
| Poway | City | San Diego | 43,434 | 47,967 | 47,805 | 48,833 | → |
| Prattville | Census-Designated Place | Plumas | 37 | 28 | 33 | 24 | → |
| Princeton | Census-Designated Place | Colusa | 274 | 266 | 303 | 309 | → |
| Proberta | Census-Designated Place | Tehama | 284 | 237 | 267 | 237 | → |
| Prunedale | Census-Designated Place | Monterey | 15,871 | 16,432 | 17,560 | 18,885 | → |
| Pumpkin Center | Census-Designated Place | Kern | ... | 484 | 452 | 421 | → |
| Quartz Hill | Census-Designated Place | Los Angeles | 9,626 | 9,890 | 10,912 | 11,447 | → |
| Quincy | Census-Designated Place | Plumas | 1,837 | 1,879 | 1,728 | 1,630 | → |
| Rackerby | Census-Designated Place | Butte | 111 | 90 | 204 | 210 | → |
| Rail Road Flat | Census-Designated Place | Calaveras | 495 | 203 | 142 | 316 | → |
| Rainbow | Census-Designated Place | San Diego | 1,711 | 1,617 | 1,832 | 1,884 | → |
| Raisin City | Census-Designated Place | Fresno | 308 | 165 | 380 | 303 | → |
| Ramona | Census-Designated Place | San Diego | 16,806 | 19,351 | 20,292 | 21,468 | → |
| Rancho Calaveras | Census-Designated Place | Calaveras | 2,278 | 4,182 | 5,325 | 5,590 | → |
| Rancho Cordova | City | Sacramento | 48,731 | 53,602 | 64,805 | 79,332 | → |
| Rancho Cucamonga | City | San Bernardino | 101,482 | 127,755 | 165,373 | 174,620 | → |
| Rancho Mirage | City | Riverside | 9,732 | 12,931 | 17,138 | 16,995 | → |
| Rancho Mission Viejo | Census-Designated Place | Orange | 48 | 63 | 312 | 10,378 | → |
| Rancho Murieta | Census-Designated Place | Sacramento | 2,651 | 4,193 | 5,488 | 5,903 | → |
| Rancho Palos Verdes | City | Los Angeles | 41,771 | 41,165 | 41,688 | 42,279 | → |
| Rancho San Diego | Census-Designated Place | San Diego | 18,091 | 20,155 | 21,208 | 21,858 | → |
| Rancho Santa Fe | Census-Designated Place | San Diego | 2,964 | 3,252 | 3,117 | 3,156 | → |
| Rancho Santa Margarita | City | Orange | 13,997 | 45,038 | 47,855 | 47,960 | → |
| Rancho Tehama Reserve | Census-Designated Place | Tehama | 397 | 1,406 | 1,485 | 1,572 | → |
| Randsburg | Census-Designated Place | Kern | 45 | 77 | 69 | 45 | → |
| Red Bluff | City | Tehama | 12,455 | 13,005 | 14,044 | 14,793 | → |
| Red Corral | Census-Designated Place | Amador | 973 | 1,530 | 1,494 | 1,687 | → |
| Redcrest | Census-Designated Place | Humboldt | 60 | 39 | 89 | 61 | → |
| Redding | City | Shasta | 67,814 | 81,062 | 89,877 | 93,919 | → |
| Redlands | City | San Bernardino | 62,679 | 63,744 | 68,699 | 73,179 | → |
| Redondo Beach | City | Los Angeles | 60,542 | 63,251 | 66,870 | 71,583 | → |
| Redway | Census-Designated Place | Humboldt | 1,212 | 1,188 | 1,225 | 1,247 | → |
| Redwood City | City | San Mateo | 66,015 | 75,014 | 76,935 | 84,304 | → |
| Redwood Valley | Census-Designated Place | Mendocino | 1,449 | 1,573 | 1,729 | 1,843 | → |
| Reedley | City | Fresno | 16,034 | 20,940 | 24,306 | 25,220 | → |
| Reliez Valley | Census-Designated Place | Contra Costa | 2,924 | 2,586 | 3,101 | 3,354 | → |
| Rexland Acres | Census-Designated Place | Kern | 2,427 | 2,759 | 3,806 | 3,563 | → |
| Rialto | City | San Bernardino | 72,706 | 92,035 | 99,301 | 103,931 | → |
| Richfield | Census-Designated Place | Tehama | 142 | 179 | 306 | 309 | → |
| Richgrove | Census-Designated Place | Tulare | 1,899 | 2,723 | 2,882 | 2,358 | → |
| Richmond | City | Contra Costa | 85,976 | 99,250 | 103,337 | 116,303 | → |
| Richvale | Census-Designated Place | Butte | 239 | 247 | 244 | 234 | → |
| Ridgecrest | City | Kern | 28,434 | 24,923 | 27,616 | 27,960 | → |
| Ridgecrest Heights | Census-Designated Place | Kern | 422 | 326 | 358 | 380 | → |
| Ridgemark | Census-Designated Place | San Benito | 1,686 | 2,741 | 3,016 | 3,212 | → |
| Rio del Mar | Census-Designated Place | Santa Cruz | 8,919 | 9,198 | 9,216 | 9,128 | → |
| Rio Dell | City | Humboldt | 3,002 | 3,155 | 3,368 | 3,379 | → |
| Rio Linda | Census-Designated Place | Sacramento | 12,687 | 13,876 | 15,106 | 15,944 | → |
| Rio Oso | Census-Designated Place | Sutter | 346 | 379 | 356 | 372 | → |
| Rio Vista | City | Solano | 3,535 | 4,710 | 7,354 | 10,015 | → |
| Ripley | Census-Designated Place | Riverside | 355 | 635 | 692 | 538 | → |
| Ripon | City | San Joaquin | 7,731 | 10,200 | 14,408 | 16,024 | → |
| River Pines | Census-Designated Place | Amador | 335 | 352 | 379 | 390 | → |
| Riverbank | City | Stanislaus | 9,108 | 15,905 | 22,687 | 24,946 | → |
| Riverdale | Census-Designated Place | Fresno | 1,980 | 2,416 | 3,153 | 3,477 | → |
| Riverdale Park | Census-Designated Place | Stanislaus | 647 | 1,094 | 1,128 | 1,053 | → |
| Rivergrove | Census-Designated Place | Kern | 102 | 159 | 151 | 195 | → |
| Riverside | City | Riverside | 226,602 | 256,730 | 303,905 | 315,478 | → |
| Robbins | Census-Designated Place | Sutter | 309 | 306 | 323 | 347 | → |
| Robinson Mill | Census-Designated Place | Butte | 51 | 35 | 80 | 89 | → |
| Rocklin | City | Placer | 18,736 | 36,499 | 57,135 | 71,600 | → |
| Rodeo | Census-Designated Place | Contra Costa | 8,221 | 8,114 | 8,679 | 9,653 | → |
| Rodriguez Camp | Census-Designated Place | Tulare | ... | 66 | 156 | 133 | → |
| Rohnert Park | City | Sonoma | 37,721 | 42,345 | 41,163 | 44,403 | → |
| Rolling Hills | City | Los Angeles | 1,848 | 1,874 | 1,860 | 1,740 | → |
| Rolling Hills | Census-Designated Place | Madera | 611 | 570 | 742 | 793 | → |
| Rolling Hills Estates | City | Los Angeles | 7,557 | 7,819 | 8,064 | 8,285 | → |
| Rollingwood | Census-Designated Place | Contra Costa | 2,193 | 2,900 | 2,969 | 3,015 | → |
| Romoland | Census-Designated Place | Riverside | 765 | 1,079 | 1,684 | 2,005 | → |
| Rosamond | Census-Designated Place | Kern | 8,776 | 14,349 | 18,150 | 20,961 | → |
| Rose Hills | Census-Designated Place | Los Angeles | 1,991 | 1,905 | 2,803 | 2,927 | → |
| Rosedale | Census-Designated Place | Kern | 5,770 | 10,071 | 14,058 | 18,639 | → |
| Rosemead | City | Los Angeles | 51,551 | 53,414 | 53,753 | 51,178 | → |
| Rosemont | Census-Designated Place | Sacramento | 22,851 | 22,904 | 22,681 | 23,510 | → |
| Roseville | City | Placer | 44,710 | 79,857 | 119,277 | 147,793 | → |
| Ross | Town | Marin | 2,165 | 2,341 | 2,419 | 2,333 | → |
| Rossmoor | Census-Designated Place | Orange | 9,893 | 10,298 | 10,244 | 10,625 | → |
| Rough and Ready | Census-Designated Place | Nevada | 831 | 870 | 963 | 905 | → |
| Round Mountain | Census-Designated Place | Shasta | 116 | 122 | 155 | 160 | → |
| Round Valley | Census-Designated Place | Inyo | 658 | 278 | 435 | 482 | → |
| Rouse | Census-Designated Place | Stanislaus | 2,581 | 2,131 | 2,005 | 1,913 | → |
| Rowland Heights | Census-Designated Place | Los Angeles | 43,532 | 48,553 | 48,993 | 48,231 | → |
| Rumsey | Census-Designated Place | Yolo | 38 | 31 | 42 | 91 | → |
| Running Springs | Census-Designated Place | San Bernardino | 4,195 | 5,125 | 4,862 | 5,268 | → |
| Ruth | Census-Designated Place | Trinity | 167 | 180 | 195 | 254 | → |
| Rutherford | Census-Designated Place | Napa | 215 | 181 | 164 | 115 | → |
| Sacramento | City | Sacramento | 369,900 | 406,606 | 466,369 | 524,908 | → |
| Sage | Census-Designated Place | Riverside | 1,949 | 2,331 | 3,187 | 3,370 | → |
| Salida | Census-Designated Place | Stanislaus | 3,375 | 12,006 | 12,805 | 13,886 | → |
| Salinas | City | Monterey | 108,851 | 151,421 | 150,560 | 163,537 | → |
| Salmon Creek | Census-Designated Place | Sonoma | 87 | 97 | 86 | 111 | → |
| Salton City | Census-Designated Place | Imperial | 821 | 978 | 3,763 | 5,155 | → |
| Salton Sea Beach | Census-Designated Place | Imperial | 446 | 392 | 422 | 508 | → |
| Salyer | Census-Designated Place | Trinity | 233 | 109 | 291 | 389 | → |
| Samoa | Census-Designated Place | Humboldt | 302 | 247 | 258 | 229 | → |
| San Andreas | Census-Designated Place | Calaveras | 2,115 | 2,615 | 2,783 | 2,994 | → |
| San Anselmo | Town | Marin | 11,587 | 12,331 | 12,309 | 12,837 | → |
| San Antonio Heights | Census-Designated Place | San Bernardino | 2,725 | 3,122 | 3,371 | 3,441 | → |
| San Ardo | Census-Designated Place | Monterey | 528 | 501 | 517 | 392 | → |
| San Bernardino | City | San Bernardino | 171,246 | 188,742 | 210,309 | 222,100 | → |
| San Bruno | City | San Mateo | 38,907 | 40,026 | 41,143 | 43,891 | → |
| San Buenaventura (Ventura) | City | Ventura | 93,568 | 100,809 | 107,212 | 110,754 | → |
| San Carlos | City | San Mateo | 26,369 | 27,793 | 28,268 | 30,734 | → |
| San Clemente | City | Orange | 41,166 | 50,031 | 63,500 | 64,285 | → |
| San Diego | City | San Diego | 1,110,910 | 1,222,920 | 1,301,927 | 1,384,429 | → |
| San Diego Country Estates | Census-Designated Place | San Diego | 6,874 | 9,262 | 10,109 | 10,395 | → |
| San Dimas | City | Los Angeles | 32,795 | 34,842 | 33,373 | 34,908 | → |
| San Fernando | City | Los Angeles | 22,352 | 23,633 | 23,652 | 23,963 | → |
| San Francisco | City | San Francisco | 723,959 | 776,764 | 805,184 | 878,392 | → |
| San Gabriel | City | Los Angeles | 37,249 | 39,581 | 39,644 | 39,578 | → |
| San Geronimo | Census-Designated Place | Marin | 368 | 436 | 446 | 510 | → |
| San Jacinto | City | Riverside | 17,552 | 23,744 | 44,200 | 53,896 | → |
| San Joaquin | City | Fresno | 2,303 | 3,604 | 3,994 | 3,750 | → |
| San Jose | City | Santa Clara | 783,233 | 903,937 | 952,354 | 1,013,419 | → |
| San Juan Bautista | City | San Benito | 1,574 | 1,543 | 1,844 | 2,087 | → |
| San Juan Capistrano | City | Orange | 26,187 | 33,717 | 34,411 | 35,197 | → |
| San Leandro | City | Alameda | 68,211 | 79,531 | 84,963 | 90,997 | → |
| San Lorenzo | Census-Designated Place | Alameda | 22,508 | 25,133 | 27,243 | 29,581 | → |
| San Lucas | Census-Designated Place | Monterey | 407 | 419 | 269 | 324 | → |
| San Luis Obispo | City | San Luis Obispo | 42,084 | 44,204 | 45,141 | 47,106 | → |
| San Marcos | City | San Diego | 39,141 | 55,562 | 83,638 | 94,868 | → |
| San Marino | City | Los Angeles | 13,021 | 12,980 | 13,104 | 12,508 | → |
| San Martin | Census-Designated Place | Santa Clara | 6,950 | 6,465 | 7,027 | 7,008 | → |
| San Mateo | City | San Mateo | 85,832 | 92,634 | 97,130 | 105,663 | → |
| San Miguel | Census-Designated Place | Contra Costa | 3,424 | 3,394 | 3,392 | 3,591 | → |
| San Miguel | Census-Designated Place | San Luis Obispo | 1,160 | 1,427 | 2,336 | 3,172 | → |
| San Pablo | City | Contra Costa | 25,051 | 30,106 | 29,505 | 32,125 | → |
| San Pasqual | Census-Designated Place | Los Angeles | 2,036 | 2,057 | 2,041 | 2,101 | → |
| San Rafael | City | Marin | 48,298 | 57,000 | 57,693 | 61,284 | → |
| San Ramon | City | Contra Costa | 35,277 | 44,706 | 71,404 | 86,336 | → |
| San Simeon | Census-Designated Place | San Luis Obispo | 128 | 96 | 462 | 445 | → |
| Sand City | City | Monterey | 192 | 254 | 334 | 322 | → |
| Sanger | City | Fresno | 16,864 | 19,015 | 24,265 | 26,780 | → |
| Santa Ana | City | Orange | 294,214 | 337,707 | 324,778 | 310,534 | → |
| Santa Barbara | City | Santa Barbara | 85,518 | 89,580 | 88,383 | 88,806 | → |
| Santa Clara | City | Santa Clara | 93,823 | 102,670 | 116,328 | 127,863 | → |
| Santa Clarita | City | Los Angeles | 122,690 | 163,281 | 208,778 | 232,809 | → |
| Santa Cruz | City | Santa Cruz | 49,726 | 55,632 | 59,948 | 64,230 | → |
| Santa Fe Springs | City | Los Angeles | 15,438 | 17,209 | 16,140 | 19,217 | → |
| Santa Margarita | Census-Designated Place | San Luis Obispo | 723 | 896 | 1,259 | 1,291 | → |
| Santa Maria | City | Santa Barbara | 62,001 | 76,822 | 99,596 | 109,694 | → |
| Santa Monica | City | Los Angeles | 86,599 | 84,082 | 89,742 | 93,075 | → |
| Santa Nella | Census-Designated Place | Merced | 628 | 1,224 | 1,380 | 2,211 | → |
| Santa Paula | City | Ventura | 25,109 | 28,672 | 29,648 | 30,680 | → |
| Santa Rosa | City | Sonoma | 126,642 | 155,634 | 175,015 | 178,118 | → |
| Santa Rosa Valley | Census-Designated Place | Ventura | 3,952 | 3,436 | 3,334 | 3,312 | → |
| Santa Susana | Census-Designated Place | Ventura | 859 | 697 | 1,037 | 1,160 | → |
| Santa Venetia | Census-Designated Place | Marin | 3,970 | 4,298 | 4,292 | 4,289 | → |
| Santa Ynez | Census-Designated Place | Santa Barbara | 3,860 | 4,037 | 4,161 | 4,505 | → |
| Santee | City | San Diego | 52,783 | 53,221 | 53,413 | 60,042 | → |
| Saranap | Census-Designated Place | Contra Costa | 4,619 | 5,078 | 5,202 | 5,830 | → |
| Saratoga | City | Santa Clara | 28,103 | 29,993 | 30,034 | 31,045 | → |
| Saticoy | Census-Designated Place | Ventura | 927 | 1,100 | 1,029 | 1,133 | → |
| Sattley | Census-Designated Place | Sierra | 40 | 42 | 49 | 44 | → |
| Sausalito | City | Marin | 7,260 | 7,200 | 6,954 | 7,269 | → |
| Scotia | Census-Designated Place | Humboldt | 831 | 849 | 850 | 681 | → |
| Scotts Valley | City | Santa Cruz | 8,684 | 11,385 | 11,573 | 12,221 | → |
| Sea Ranch | Census-Designated Place | Sonoma | 637 | 1,169 | 1,305 | 1,169 | → |
| Seacliff | Census-Designated Place | Santa Cruz | 2,988 | 3,210 | 3,267 | 3,280 | → |
| Seal Beach | City | Orange | 25,071 | 24,497 | 24,165 | 25,232 | → |
| Searles Valley | Census-Designated Place | San Bernardino | 2,347 | 1,885 | 1,739 | 1,565 | → |
| Seaside | City | Monterey | 38,850 | 32,188 | 33,024 | 32,381 | → |
| Sebastopol | City | Sonoma | 6,932 | 7,619 | 7,465 | 7,524 | → |
| Seeley | Census-Designated Place | Imperial | 1,228 | 1,624 | 1,739 | 1,729 | → |
| Selma | City | Fresno | 15,226 | 19,601 | 23,344 | 24,773 | → |
| Sequoia Crest | Census-Designated Place | Tulare | ... | ... | 10 | 24 | → |
| Sereno del Mar | Census-Designated Place | Sonoma | 91 | 43 | 126 | 107 | → |
| Seville | Census-Designated Place | Tulare | 249 | 360 | 417 | 446 | → |
| Shafter | City | Kern | 10,297 | 12,735 | 17,099 | 19,955 | → |
| Shandon | Census-Designated Place | San Luis Obispo | 729 | 986 | 1,295 | 1,168 | → |
| Shasta | Census-Designated Place | Shasta | 1,177 | 1,479 | 1,771 | 1,043 | → |
| Shasta Lake | City | Shasta | 8,647 | 9,003 | 10,162 | 10,365 | → |
| Shaver Lake | Census-Designated Place | Fresno | 609 | 705 | 634 | 580 | → |
| Shell Ridge | Census-Designated Place | Contra Costa | 1,031 | 892 | 959 | 1,014 | → |
| Shelter Cove | Census-Designated Place | Humboldt | 149 | 340 | 693 | 803 | → |
| Sheridan | Census-Designated Place | Placer | 1,285 | 1,175 | 1,238 | 1,385 | → |
| Shingle Springs | Census-Designated Place | El Dorado | 3,084 | 3,752 | 4,432 | 4,660 | → |
| Shingletown | Census-Designated Place | Shasta | 1,857 | 2,222 | 2,283 | 2,442 | → |
| Shoshone | Census-Designated Place | Inyo | 37 | 52 | 31 | 22 | → |
| Sierra Brooks | Census-Designated Place | Sierra | 209 | 388 | 478 | 467 | → |
| Sierra City | Census-Designated Place | Sierra | 133 | 227 | 221 | 235 | → |
| Sierra Madre | City | Los Angeles | 10,788 | 10,578 | 10,917 | 11,273 | → |
| Sierra Village | Census-Designated Place | Tuolumne | 444 | 365 | 456 | 411 | → |
| Sierraville | Census-Designated Place | Sierra | 154 | 187 | 200 | 239 | → |
| Signal Hill | City | Los Angeles | 8,371 | 9,378 | 11,018 | 11,853 | → |
| Silver City | Census-Designated Place | Tulare | ... | ... | ... | 0 | → |
| Silver Lakes | Census-Designated Place | San Bernardino | 2,429 | 4,125 | 5,623 | 6,317 | → |
| Silverado | Census-Designated Place | Orange | 182 | 99 | 218 | 932 | → |
| Silverado Resort | Census-Designated Place | Napa | 465 | 562 | 1,095 | 948 | → |
| Simi Valley | City | Ventura | 100,325 | 111,333 | 124,247 | 126,369 | → |
| Sisquoc | Census-Designated Place | Santa Barbara | 234 | 242 | 183 | 191 | → |
| Sky Valley | Census-Designated Place | Riverside | 681 | 1,927 | 2,406 | 2,411 | → |
| Sleepy Hollow | Census-Designated Place | Marin | 2,342 | 2,330 | 2,384 | 2,401 | → |
| Smartsville | Census-Designated Place | Yuba | 129 | 117 | 177 | 185 | → |
| Smith Corner | Census-Designated Place | Kern | 176 | 208 | 524 | 594 | → |
| Smith River | Census-Designated Place | Del Norte | 811 | 928 | 866 | 906 | → |
| Snelling | Census-Designated Place | Merced | 65 | 173 | 231 | 238 | → |
| Soda Bay | Census-Designated Place | Lake | 670 | 699 | 1,016 | 1,163 | → |
| Soda Springs | Census-Designated Place | Nevada | 90 | 97 | 81 | 94 | → |
| Solana Beach | City | San Diego | 12,996 | 12,974 | 12,867 | 12,937 | → |
| Soledad | City | Monterey | 13,774 | 11,284 | 25,738 | 26,918 | → |
| Solvang | City | Santa Barbara | 4,764 | 5,321 | 5,227 | 6,122 | → |
| Somis | Census-Designated Place | Ventura | 1,328 | 1,269 | 1,452 | 1,429 | → |
| Sonoma | City | Sonoma | 8,112 | 9,243 | 10,655 | 10,727 | → |
| Sonoma State University | Census-Designated Place | Sonoma | 237 | 301 | 2,148 | 2,679 | → |
| Sonora | City | Tuolumne | 4,237 | 4,535 | 4,888 | 5,007 | → |
| Soquel | Census-Designated Place | Santa Cruz | 9,188 | 9,218 | 9,644 | 9,980 | → |
| Soulsbyville | Census-Designated Place | Tuolumne | 1,732 | 1,729 | 2,215 | 2,092 | → |
| South Dos Palos | Census-Designated Place | Merced | 1,214 | 1,385 | 1,620 | 1,747 | → |
| South El Monte | City | Los Angeles | 20,711 | 20,900 | 20,096 | 19,557 | → |
| South Gate | City | Los Angeles | 86,308 | 96,317 | 94,396 | 92,719 | → |
| South Lake Tahoe | City | El Dorado | 21,586 | 23,614 | 21,420 | 21,336 | → |
| South Monrovia Island | Census-Designated Place | Los Angeles | 5,652 | 6,622 | 6,777 | 6,515 | → |
| South Oroville | Census-Designated Place | Butte | 3,108 | 3,430 | 3,233 | 3,235 | → |
| South Pasadena | City | Los Angeles | 23,865 | 24,323 | 25,605 | 26,932 | → |
| South San Francisco | City | San Mateo | 54,427 | 60,583 | 63,613 | 66,095 | → |
| South San Gabriel | Census-Designated Place | Los Angeles | 7,700 | 7,595 | 8,070 | 7,920 | → |
| South San Jose Hills | Census-Designated Place | Los Angeles | 17,814 | 20,218 | 20,551 | 19,855 | → |
| South Taft | Census-Designated Place | Kern | 2,170 | 1,898 | 2,169 | 2,100 | → |
| South Whittier | Census-Designated Place | Los Angeles | 49,514 | 55,193 | 57,156 | 56,415 | → |
| Spaulding | Census-Designated Place | Lassen | 151 | 190 | 178 | 206 | → |
| Spreckels | Census-Designated Place | Monterey | 571 | 485 | 673 | 692 | → |
| Spring Garden | Census-Designated Place | Plumas | ... | 55 | 16 | 19 | → |
| Spring Valley | Census-Designated Place | Lake | 242 | 482 | 845 | 964 | → |
| Spring Valley | Census-Designated Place | San Diego | 24,957 | 26,663 | 28,205 | 30,998 | → |
| Spring Valley Lake | Census-Designated Place | San Bernardino | 5,126 | 6,566 | 8,220 | 9,598 | → |
| Springville | Census-Designated Place | Tulare | 856 | 875 | 647 | 967 | → |
| Squaw Valley | Census-Designated Place | Fresno | 2,314 | 2,863 | 3,548 | 3,564 | → |
| Squirrel Mountain Valley | Census-Designated Place | Kern | 760 | 553 | 547 | 760 | → |
| St. Helena | City | Napa | 5,028 | 5,925 | 5,816 | 5,432 | → |
| Stallion Springs | Census-Designated Place | Kern | 491 | 1,222 | 2,488 | 3,139 | → |
| Stanford | Census-Designated Place | Santa Clara | 18,097 | 13,315 | 13,809 | 21,150 | → |
| Stanton | City | Orange | 30,353 | 38,165 | 37,829 | 37,949 | → |
| Stebbins | Census-Designated Place | Kern | ... | 514 | 1,246 | 1,423 | → |
| Stevenson Ranch | Census-Designated Place | Los Angeles | 1,350 | 6,576 | 17,557 | 20,178 | → |
| Stevinson | Census-Designated Place | Merced | 168 | 253 | 313 | 275 | → |
| Stinson Beach | Census-Designated Place | Marin | 442 | 611 | 514 | 541 | → |
| Stirling City | Census-Designated Place | Butte | 225 | 273 | 295 | 284 | → |
| Stockton | City | San Joaquin | 211,970 | 243,151 | 292,348 | 320,802 | → |
| Stones Landing | Census-Designated Place | Lassen | ... | 78 | 62 | 86 | → |
| Stonyford | Census-Designated Place | Colusa | 34 | 54 | 149 | 133 | → |
| Stratford | Census-Designated Place | Kings | 718 | 1,264 | 1,277 | 1,121 | → |
| Strathmore | Census-Designated Place | Tulare | 2,353 | 2,584 | 2,819 | 2,830 | → |
| Strawberry | Census-Designated Place | Marin | 3,788 | 5,302 | 5,393 | 5,447 | → |
| Strawberry | Census-Designated Place | Tuolumne | 85 | 101 | 86 | 87 | → |
| Sugarloaf Saw Mill | Census-Designated Place | Tulare | ... | 15 | 18 | 14 | → |
| Sugarloaf Village | Census-Designated Place | Tulare | ... | ... | 10 | 7 | → |
| Suisun City | City | Solano | 22,783 | 26,141 | 28,116 | 29,517 | → |
| Sultana | Census-Designated Place | Tulare | 730 | 380 | 728 | 779 | → |
| Summerland | Census-Designated Place | Santa Barbara | 1,400 | 1,335 | 1,353 | 1,222 | → |
| Sun Village | Census-Designated Place | Los Angeles | 7,997 | 9,485 | 11,565 | 12,345 | → |
| Sunny Slopes | Census-Designated Place | Mono | 119 | 163 | 182 | 139 | → |
| Sunnyside | Census-Designated Place | Fresno | 4,002 | 3,729 | 4,235 | 4,627 | → |
| Sunnyside-Tahoe City | Census-Designated Place | Placer | 1,643 | 1,761 | 1,557 | 1,555 | → |
| Sunnyvale | City | Santa Clara | 117,481 | 130,873 | 140,492 | 155,631 | → |
| Sunol | Census-Designated Place | Alameda | 1,028 | 1,001 | 913 | 922 | → |
| Susanville | City | Lassen | 11,928 | 13,686 | 17,932 | 16,734 | → |
| Sutter | Census-Designated Place | Sutter | 2,606 | 2,885 | 2,904 | 2,997 | → |
| Sutter Creek | City | Amador | 1,835 | 2,322 | 2,523 | 2,652 | → |
| Swall Meadows | Census-Designated Place | Mono | 51 | 105 | 220 | 178 | → |
| Taft | City | Kern | 6,129 | 6,408 | 9,287 | 8,559 | → |
| Taft Heights | Census-Designated Place | Kern | 1,684 | 1,865 | 1,949 | 1,999 | → |
| Taft Mosswood | Census-Designated Place | San Joaquin | 1,290 | 1,388 | 1,530 | 1,636 | → |
| Tahoe Vista | Census-Designated Place | Placer | 1,082 | 1,668 | 1,433 | 1,392 | → |
| Tahoma | Census-Designated Place | Placer / El Dorado | 969 | 1,387 | 1,191 | 1,034 | → |
| Talmage | Census-Designated Place | Mendocino | 982 | 1,141 | 1,130 | 986 | → |
| Tamalpais-Homestead Valley | Census-Designated Place | Marin | 9,232 | 10,691 | 10,735 | 11,492 | → |
| Tancred | Census-Designated Place | Yolo | 29 | 56 | 82 | 89 | → |
| Tara Hills | Census-Designated Place | Contra Costa | 4,734 | 5,332 | 5,126 | 5,364 | → |
| Tarina | Census-Designated Place | Kern | ... | 12 | 14 | 18 | → |
| Tarpey Village | Census-Designated Place | Fresno | 3,565 | 3,699 | 3,888 | 3,997 | → |
| Taylorsville | Census-Designated Place | Plumas | 166 | 154 | 140 | 123 | → |
| Tecopa | Census-Designated Place | Inyo | 114 | 99 | 150 | 120 | → |
| Tehachapi | City | Kern | 12,009 | 11,117 | 14,399 | 12,940 | → |
| Tehama | City | Tehama | 401 | 432 | 418 | 432 | → |
| Temecula | City | Riverside | 27,138 | 67,539 | 99,970 | 109,990 | → |
| Temelec | Census-Designated Place | Sonoma | 1,594 | 1,556 | 1,441 | 1,500 | → |
| Temescal Valley | Census-Designated Place | Riverside | 3,657 | 11,569 | 22,535 | 26,232 | → |
| Temple City | City | Los Angeles | 31,136 | 33,777 | 35,557 | 36,460 | → |
| Templeton | Census-Designated Place | San Luis Obispo | 4,207 | 5,460 | 7,674 | 8,386 | → |
| Tennant | Census-Designated Place | Siskiyou | 77 | 63 | 41 | 63 | → |
| Terminous | Census-Designated Place | San Joaquin | 483 | 108 | 381 | 429 | → |
| Terra Bella | Census-Designated Place | Tulare | 2,740 | 3,466 | 3,015 | 2,910 | → |
| Teviston | Census-Designated Place | Tulare | 543 | 637 | 1,214 | 1,185 | → |
| Thermal | Census-Designated Place | Riverside | 2,765 | 3,803 | 2,865 | 2,676 | → |
| Thermalito | Census-Designated Place | Butte | 5,646 | 6,045 | 6,646 | 7,198 | → |
| Thornton | Census-Designated Place | San Joaquin | 851 | 1,189 | 1,131 | 1,004 | → |
| Thousand Oaks | City | Ventura | 104,187 | 116,916 | 126,490 | 126,954 | → |
| Thousand Palms | Census-Designated Place | Riverside | 4,478 | 6,175 | 7,715 | 7,967 | → |
| Three Rivers | Census-Designated Place | Tulare | 1,509 | 1,840 | 1,799 | 2,053 | → |
| Three Rocks | Census-Designated Place | Fresno | ... | 361 | 246 | 248 | → |
| Tiburon | Town | Marin | 8,447 | 8,757 | 8,947 | 9,157 | → |
| Timber Cove | Census-Designated Place | Sonoma | 39 | 166 | 164 | 171 | → |
| Tipton | Census-Designated Place | Tulare | 1,250 | 1,790 | 2,543 | 2,519 | → |
| Tobin (incl. Storrie) | Census-Designated Place | Plumas | 12 | 16 | 12 | 19 | → |
| Tomales | Census-Designated Place | Marin | 77 | 210 | 204 | 187 | → |
| Tonyville | Census-Designated Place | Tulare | ... | ... | 316 | 329 | → |
| Tooleville | Census-Designated Place | Tulare | ... | ... | 339 | 286 | → |
| Topanga | Census-Designated Place | Los Angeles | 7,814 | 7,453 | 8,289 | 8,560 | → |
| Topaz | Census-Designated Place | Mono | 87 | 94 | 109 | 150 | → |
| Toro Canyon | Census-Designated Place | Santa Barbara | 1,297 | 2,091 | 1,730 | 1,835 | → |
| Torrance | City | Los Angeles | 133,507 | 137,575 | 145,309 | 146,946 | → |
| Trabuco Canyon | Census-Designated Place | Orange | 687 | 3,233 | 1,382 | 1,020 | → |
| Tracy | City | San Joaquin | 34,647 | 56,796 | 83,426 | 93,118 | → |
| Tranquillity | Census-Designated Place | Fresno | 762 | 813 | 799 | 805 | → |
| Traver | Census-Designated Place | Tulare | 758 | 732 | 713 | 731 | → |
| Tres Pinos | Census-Designated Place | San Benito | 260 | 362 | 476 | 443 | → |
| Trinidad | City | Humboldt | 391 | 313 | 369 | 338 | → |
| Trinity Center | Census-Designated Place | Trinity | 135 | 286 | 267 | 198 | → |
| Trinity Village | Census-Designated Place | Trinity | 220 | 165 | 297 | 278 | → |
| Trona | Census-Designated Place | Inyo | ... | 25 | 18 | 11 | → |
| Trowbridge | Census-Designated Place | Sutter | 266 | 216 | 226 | 229 | → |
| Truckee | Town | Nevada | 8,608 | 13,890 | 16,168 | 16,726 | → |
| Tulare | City | Tulare | 36,309 | 45,792 | 59,328 | 68,913 | → |
| Tulelake | City | Siskiyou | 1,010 | 1,010 | 1,010 | 902 | → |
| Tuolumne City | Census-Designated Place | Tuolumne | 1,686 | 1,865 | 1,779 | 1,798 | → |
| Tupman | Census-Designated Place | Kern | 106 | 227 | 161 | 177 | → |
| Turlock | City | Stanislaus | 43,098 | 56,631 | 68,632 | 72,689 | → |
| Tustin | City | Orange | 51,567 | 67,493 | 75,299 | 79,948 | → |
| Tuttle | Census-Designated Place | Merced | 141 | 126 | 103 | 102 | → |
| Tuttletown | Census-Designated Place | Tuolumne | 236 | 567 | 668 | 787 | → |
| Twain | Census-Designated Place | Plumas | ... | 87 | 82 | 75 | → |
| Twain Harte | Census-Designated Place | Tuolumne | 2,170 | 2,586 | 2,226 | 2,378 | → |
| Twentynine Palms | City | San Bernardino | 22,440 | 23,180 | 25,048 | 28,065 | → |
| Twin Lakes | Census-Designated Place | Mono | 11 | 46 | 43 | 45 | → |
| Twin Lakes | Census-Designated Place | Santa Cruz | 5,712 | 5,533 | 4,917 | 4,944 | → |
| Ukiah | City | Mendocino | 14,769 | 15,411 | 16,080 | 16,625 | → |
| Union City | City | Alameda | 53,774 | 66,824 | 69,547 | 70,145 | → |
| University of California Davis | Census-Designated Place | Yolo | 5,221 | 4,311 | 5,786 | 8,525 | → |
| University of California Merced | Census-Designated Place | Merced | ... | ... | ... | 0 | → |
| University of California-Santa Barbara | Census-Designated Place | Santa Barbara | 4,871 | 3,701 | 8,274 | 9,710 | → |
| Upland | City | San Bernardino | 63,351 | 68,611 | 73,719 | 79,040 | → |
| Upper Lake | Census-Designated Place | Lake | 705 | 832 | 1,052 | 1,095 | → |
| Vacaville | City | Solano | 71,507 | 88,717 | 92,422 | 102,388 | → |
| Val Verde | Census-Designated Place | Los Angeles | 1,804 | 1,825 | 2,468 | 2,399 | → |
| Valinda | Census-Designated Place | Los Angeles | 18,735 | 21,776 | 22,822 | 22,437 | → |
| Valle Vista | Census-Designated Place | Riverside | 9,223 | 11,850 | 14,578 | 16,194 | → |
| Vallecito | Census-Designated Place | Calaveras | 233 | 273 | 277 | 442 | → |
| Vallejo | City | Solano | 109,323 | 116,661 | 115,908 | 126,082 | → |
| Valley Acres | Census-Designated Place | Kern | 440 | 512 | 527 | 504 | → |
| Valley Center | Census-Designated Place | San Diego | 5,907 | 7,323 | 9,277 | 10,087 | → |
| Valley Ford | Census-Designated Place | Sonoma | 114 | 183 | 147 | 148 | → |
| Valley Home | Census-Designated Place | Stanislaus | 288 | 258 | 228 | 284 | → |
| Valley Ranch | Census-Designated Place | Plumas | 58 | 92 | 109 | 128 | → |
| Valley Springs | Census-Designated Place | Calaveras | 1,239 | 1,985 | 3,096 | 3,779 | → |
| Valley Wells | Census-Designated Place | Inyo | ... | ... | ... | 0 | → |
| Vandenberg AFB | Census-Designated Place | Santa Barbara | 9,846 | 6,151 | 3,338 | 3,559 | → |
| Vandenberg Village | Census-Designated Place | Santa Barbara | 5,971 | 5,802 | 6,497 | 7,308 | → |
| Verdi | Census-Designated Place | Sierra | 14 | 39 | 162 | 179 | → |
| Vernon | City | Los Angeles | 125 | 126 | 112 | 223 | → |
| Victor | Census-Designated Place | San Joaquin | 303 | 283 | 293 | 313 | → |
| Victorville | City | San Bernardino | 50,379 | 64,090 | 115,895 | 134,821 | → |
| View Park-Windsor Hills | Census-Designated Place | Los Angeles | 11,769 | 10,958 | 11,075 | 11,419 | → |
| Villa Park | City | Orange | 6,196 | 5,968 | 5,822 | 5,843 | → |
| Vina | Census-Designated Place | Tehama | 159 | 198 | 237 | 198 | → |
| Vincent | Census-Designated Place | Los Angeles | 13,733 | 15,163 | 15,922 | 15,714 | → |
| Vine Hill | Census-Designated Place | Contra Costa | 2,466 | 2,473 | 3,761 | 4,323 | → |
| Vineyard | Census-Designated Place | Sacramento | 10,663 | 19,965 | 35,141 | 43,935 | → |
| Virginia Lakes | Census-Designated Place | Mono | ... | ... | 1 | 7 | → |
| Visalia | City | Tulare | 80,913 | 95,051 | 124,526 | 141,590 | → |
| Vista | City | San Diego | 73,193 | 90,052 | 93,157 | 98,732 | → |
| Vista Santa Rosa | Census-Designated Place | Riverside | 2,630 | 3,002 | 2,926 | 2,607 | → |
| Volcano | Census-Designated Place | Amador | 60 | 82 | 77 | 104 | → |
| Volta | Census-Designated Place | Merced | 176 | 273 | 246 | 366 | → |
| Walker | Census-Designated Place | Mono | 502 | 533 | 660 | 704 | → |
| Wallace | Census-Designated Place | Calaveras | 162 | 220 | 403 | 479 | → |
| Walnut | City | Los Angeles | 29,149 | 30,002 | 29,166 | 28,438 | → |
| Walnut Creek | City | Contra Costa | 61,098 | 64,449 | 64,145 | 70,131 | → |
| Walnut Grove | Census-Designated Place | Sacramento | 1,120 | 1,342 | 1,542 | 1,452 | → |
| Walnut Park | Census-Designated Place | Los Angeles | 15,956 | 16,180 | 15,966 | 15,214 | → |
| Warm Springs | Census-Designated Place | Riverside | 1,128 | 1,384 | 1,441 | 1,586 | → |
| Warner Valley | Census-Designated Place | Plumas | ... | ... | 2 | 8 | → |
| Wasco | City | Kern | 12,504 | 21,283 | 25,549 | 27,053 | → |
| Washington | Census-Designated Place | Nevada | 128 | 148 | 185 | 101 | → |
| Waterford | City | Stanislaus | 4,829 | 6,984 | 8,464 | 9,129 | → |
| Waterloo | Census-Designated Place | San Joaquin | 512 | 518 | 572 | 534 | → |
| Watsonville | City | Santa Cruz | 34,218 | 46,834 | 51,186 | 52,583 | → |
| Waukena | Census-Designated Place | Tulare | 21 | 54 | 75 | 80 | → |
| Wautec | Census-Designated Place | Humboldt | 79 | 53 | 28 | 48 | → |
| Wawona | Census-Designated Place | Mariposa | ... | ... | 104 | 111 | → |
| Weaverville | Census-Designated Place | Trinity | 3,099 | 3,135 | 3,717 | 3,667 | → |
| Weed | City | Siskiyou | 3,113 | 2,964 | 2,965 | 2,865 | → |
| Weedpatch | Census-Designated Place | Kern | 2,408 | 2,726 | 2,658 | 2,206 | → |
| Weitchpec | Census-Designated Place | Humboldt | 104 | 118 | 108 | 112 | → |
| Weldon | Census-Designated Place | Kern | 2,244 | 2,387 | 2,642 | 2,303 | → |
| Weott | Census-Designated Place | Humboldt | 121 | 139 | 288 | 219 | → |
| West Athens | Census-Designated Place | Los Angeles | 8,859 | 9,101 | 8,729 | 9,393 | → |
| West Bishop | Census-Designated Place | Inyo | 2,908 | 2,807 | 2,607 | 2,754 | → |
| West Carson | Census-Designated Place | Los Angeles | 20,143 | 21,138 | 21,699 | 22,870 | → |
| West Covina | City | Los Angeles | 96,015 | 103,384 | 106,109 | 109,500 | → |
| West Goshen | Census-Designated Place | Tulare | 377 | 277 | 446 | 536 | → |
| West Hollywood | City | Los Angeles | 36,021 | 35,943 | 34,335 | 35,810 | → |
| West Menlo Park | Census-Designated Place | San Mateo | 3,330 | 3,629 | 3,659 | 3,930 | → |
| West Modesto | Census-Designated Place | Stanislaus | 5,540 | 5,493 | 5,586 | 5,965 | → |
| West Park | Census-Designated Place | Fresno | 890 | 917 | 1,157 | 1,053 | → |
| West Point | Census-Designated Place | Calaveras | 613 | 655 | 609 | 688 | → |
| West Puente Valley | Census-Designated Place | Los Angeles | 20,728 | 24,169 | 24,112 | 22,959 | → |
| West Rancho Dominguez | Census-Designated Place | Los Angeles | 20,312 | 21,520 | 21,689 | 24,347 | → |
| West Sacramento | City | Yolo | 28,900 | 31,618 | 48,744 | 53,922 | → |
| West Whittier-Los Nietos | Census-Designated Place | Los Angeles | 22,178 | 25,129 | 25,540 | 25,325 | → |
| Westhaven-Moonstone | Census-Designated Place | Humboldt | 1,109 | 1,044 | 1,205 | 1,187 | → |
| Westlake Village | City | Los Angeles | 7,402 | 8,321 | 8,303 | 8,027 | → |
| Westley | Census-Designated Place | Stanislaus | 414 | 549 | 439 | 575 | → |
| Westminster | City | Orange | 78,603 | 87,992 | 89,511 | 90,818 | → |
| Westmont | Census-Designated Place | Los Angeles | 31,044 | 31,623 | 31,853 | 33,913 | → |
| Westmorland | City | Imperial | 1,381 | 2,117 | 2,230 | 2,020 | → |
| Westside | Census-Designated Place | Fresno | ... | 51 | 67 | 143 | → |
| Westwood | Census-Designated Place | Lassen | 2,017 | 1,998 | 1,647 | 1,541 | → |
| Wheatland | City | Yuba | 1,652 | 2,377 | 3,504 | 3,710 | → |
| Whitehawk | Census-Designated Place | Plumas | ... | 96 | 113 | 144 | → |
| Whitewater | Census-Designated Place | Riverside | 324 | 517 | 859 | 984 | → |
| Whitley Gardens | Census-Designated Place | San Luis Obispo | 70 | 295 | 285 | 325 | → |
| Whitmore | Census-Designated Place | Shasta | 127 | 203 | 255 | 311 | → |
| Whittier | City | Los Angeles | 77,663 | 83,721 | 85,313 | 87,865 | → |
| Wildomar | City | Riverside | 15,864 | 20,762 | 32,211 | 36,889 | → |
| Wilkerson | Census-Designated Place | Inyo | 157 | 562 | 563 | 543 | → |
| Williams | City | Colusa | 2,364 | 3,680 | 5,094 | 5,540 | → |
| Williams Canyon | Census-Designated Place | Orange | ... | 49 | 12 | 93 | → |
| Willits | City | Mendocino | 5,085 | 5,049 | 4,926 | 4,984 | → |
| Willow Creek | Census-Designated Place | Humboldt | 1,369 | 1,346 | 1,710 | 1,720 | → |
| Willowbrook | Census-Designated Place | Los Angeles | 21,244 | 21,252 | 23,515 | 24,295 | → |
| Willows | City | Glenn | 6,013 | 6,279 | 6,164 | 6,293 | → |
| Wilsonia | Census-Designated Place | Tulare | ... | ... | 5 | 14 | → |
| Wilton | Census-Designated Place | Sacramento | 3,858 | 4,551 | 5,363 | 5,958 | → |
| Winchester | Census-Designated Place | Riverside | 2,038 | 2,155 | 2,534 | 3,068 | → |
| Windsor | Town | Sonoma | 12,273 | 22,669 | 26,792 | 26,362 | → |
| Winter Gardens | Census-Designated Place | San Diego | 18,090 | 19,771 | 20,631 | 22,380 | → |
| Winterhaven | Census-Designated Place | Imperial | 331 | 529 | 394 | 390 | → |
| Winters | City | Yolo | 5,093 | 6,123 | 6,624 | 7,107 | → |
| Winton | Census-Designated Place | Merced | 7,559 | 8,832 | 10,613 | 11,709 | → |
| Wofford Heights | Census-Designated Place | Kern | 2,270 | 2,276 | 2,200 | 2,213 | → |
| Woodacre | Census-Designated Place | Marin | 1,478 | 1,393 | 1,348 | 1,410 | → |
| Woodbridge | Census-Designated Place | San Joaquin | 3,259 | 4,145 | 3,984 | 4,031 | → |
| Woodcrest | Census-Designated Place | Riverside | 8,430 | 9,164 | 14,347 | 15,378 | → |
| Woodlake | City | Tulare | 5,761 | 6,652 | 7,292 | 7,440 | → |
| Woodland | City | Yolo | 40,580 | 49,556 | 55,557 | 61,045 | → |
| Woodlands | Census-Designated Place | San Luis Obispo | ... | ... | 576 | 1,933 | → |
| Woodside | Town | San Mateo | 5,333 | 5,480 | 5,269 | 5,304 | → |
| Woodville | Census-Designated Place | Tulare | 999 | 1,050 | 1,150 | 1,680 | → |
| Woodville Farm Labor Camp | Census-Designated Place | Tulare | 372 | 409 | 94 | 729 | → |
| Woody | Census-Designated Place | Kern | 10 | 29 | 27 | 108 | → |
| Wrightwood | Census-Designated Place | San Bernardino | 3,469 | 4,091 | 4,525 | 4,720 | → |
| Yankee Hill | Census-Designated Place | Butte | 237 | 283 | 333 | 260 | → |
| Yermo | Census-Designated Place | San Bernardino | 760 | 703 | 644 | 623 | → |
| Yettem | Census-Designated Place | Tulare | ... | ... | 129 | 201 | → |
| Yolo | Census-Designated Place | Yolo | 388 | 453 | 450 | 425 | → |
| Yorba Linda | City | Orange | 56,333 | 58,751 | 64,176 | 68,319 | → |
| Yosemite Lakes | Census-Designated Place | Madera | 2,367 | 4,160 | 4,952 | 5,022 | → |
| Yosemite Valley | Census-Designated Place | Mariposa | 911 | 265 | 1,035 | 337 | → |
| Yosemite West | Census-Designated Place | Mariposa | ... | 38 | 12 | 47 | → |
| Yountville | City | Napa | 3,252 | 2,986 | 2,925 | 3,427 | → |
| Yreka | City | Siskiyou | 7,015 | 7,320 | 7,763 | 7,818 | → |
| Yuba City | City | Sutter | 39,251 | 50,946 | 65,634 | 70,213 | → |
| Yucaipa | City | San Bernardino | 33,060 | 41,147 | 51,279 | 54,551 | → |
| Yucca Valley | Town | San Bernardino | 16,662 | 16,863 | 20,654 | 21,740 | → |
| Zayante | Census-Designated Place | Santa Cruz | 242 | 836 | 705 | 729 | → |
Source: U.S. Census Bureau.
Explanation: Latest available rebased population figures are used. In case of significant changes, they were recalculated by using census block data.