USA: Washington
Counties
The population of all counties in the State of Washington according to census results and latest official estimates.
| Name | Status | Population Census 2000-04-01 | Population Census 2010-04-01 | Population Estimate 2018-07-01 | |
|---|---|---|---|---|---|
| Adams | County | 16,426 | 18,728 | 19,759 | → |
| Asotin | County | 20,553 | 21,623 | 22,610 | → |
| Benton | County | 142,473 | 175,171 | 201,877 | → |
| Chelan | County | 66,611 | 72,464 | 77,036 | → |
| Clallam | County | 64,183 | 71,404 | 76,737 | → |
| Clark | County | 345,235 | 425,360 | 481,857 | → |
| Columbia | County | 4,064 | 4,078 | 4,059 | → |
| Cowlitz | County | 92,945 | 102,408 | 108,987 | → |
| Douglas | County | 32,589 | 38,431 | 42,907 | → |
| Ferry | County | 7,262 | 7,554 | 7,649 | → |
| Franklin | County | 49,378 | 78,163 | 94,347 | → |
| Garfield | County | 2,397 | 2,266 | 2,247 | → |
| Grant | County | 74,714 | 89,120 | 97,331 | → |
| Grays Harbor | County | 67,141 | 72,804 | 73,901 | → |
| Island | County | 71,571 | 78,506 | 84,460 | → |
| Jefferson | County | 26,301 | 29,872 | 31,729 | → |
| King | County | 1,737,075 | 1,931,281 | 2,233,163 | → |
| Kitsap | County | 231,982 | 251,137 | 269,805 | → |
| Kittitas | County | 33,369 | 40,906 | 47,364 | → |
| Klickitat | County | 19,170 | 20,317 | 22,107 | → |
| Lewis | County | 68,585 | 75,457 | 79,604 | → |
| Lincoln | County | 10,173 | 10,570 | 10,740 | → |
| Mason | County | 49,443 | 60,696 | 65,507 | → |
| Okanogan | County | 39,567 | 41,117 | 42,132 | → |
| Pacific | County | 20,979 | 20,920 | 22,036 | → |
| Pend Oreille | County | 11,706 | 13,001 | 13,602 | → |
| Pierce | County | 700,816 | 795,219 | 891,299 | → |
| San Juan | County | 14,052 | 15,769 | 17,128 | → |
| Skagit | County | 103,017 | 116,901 | 128,206 | → |
| Skamania | County | 9,876 | 11,070 | 11,924 | → |
| Snohomish | County | 606,043 | 713,308 | 814,901 | → |
| Spokane | County | 417,968 | 471,225 | 514,631 | → |
| Stevens | County | 40,082 | 43,527 | 45,260 | → |
| Thurston | County | 207,392 | 252,258 | 286,419 | → |
| Wahkiakum | County | 3,824 | 3,978 | 4,426 | → |
| Walla Walla | County | 55,177 | 58,781 | 60,922 | → |
| Whatcom | County | 166,822 | 201,140 | 225,685 | → |
| Whitman | County | 40,742 | 44,778 | 49,791 | → |
| Yakima | County | 222,578 | 243,237 | 251,446 | → |
| Washington | State | 5,894,281 | 6,724,545 | 7,535,591 |
Contents: Incorporated Places
The population of all incorporated places in the State of Washington according to census results and latest official estimates.
| Name | Status | County | Population Census 2000-04-01 | Population Census 2010-04-01 | Population Estimate 2018-07-01 | |
|---|---|---|---|---|---|---|
| Aberdeen | City | Grays Harbor | 16,511 | 16,884 | 16,654 | → |
| Airway Heights | City | Spokane | ... | 7,540 | 9,200 | → |
| Albion | Town | Whitman | 607 | 590 | 613 | → |
| Algona | City | King | 2,436 | 3,014 | 3,223 | → |
| Almira | Town | Lincoln | 305 | 284 | 278 | → |
| Anacortes | City | Skagit | 14,500 | 15,767 | 17,283 | → |
| Arlington | City | Snohomish | 12,339 | 17,940 | 19,803 | → |
| Asotin | City | Asotin | 1,117 | 1,245 | 1,294 | → |
| Auburn | City | King / Pierce | 55,312 | 70,164 | 81,905 | → |
| Bainbridge Island | City | Kitsap | 20,311 | 23,025 | 24,846 | → |
| Battle Ground | City | Clark | 9,923 | 17,778 | 20,949 | → |
| Beaux Arts Village | Town | King | 287 | 299 | 327 | → |
| Bellevue | City | King | 112,380 | 127,885 | 147,599 | → |
| Bellingham | City | Whatcom | 68,085 | 81,252 | 90,665 | → |
| Benton City | City | Benton | 2,624 | 3,032 | 3,440 | → |
| Bingen | City | Klickitat | 682 | 712 | 737 | → |
| Black Diamond | City | King | 3,964 | 4,151 | 4,477 | → |
| Blaine | City | Whatcom | 3,780 | 4,694 | 5,436 | → |
| Bonney Lake | City | Pierce | 11,683 | 17,592 | 21,092 | → |
| Bothell | City | King / Snohomish | ... | 39,868 | 46,657 | → |
| Bremerton | City | Kitsap | 37,321 | 37,876 | 41,235 | → |
| Brewster | City | Okanogan | 2,289 | 2,369 | 2,364 | → |
| Bridgeport | City | Douglas | 2,049 | 2,409 | 2,589 | → |
| Brier | City | Snohomish | 6,319 | 6,276 | 6,978 | → |
| Buckley | City | Pierce | 4,087 | 4,344 | 4,944 | → |
| Bucoda | Town | Thurston | 630 | 562 | 589 | → |
| Burien | City | King | ... | 48,081 | 51,908 | → |
| Burlington | City | Skagit | 6,835 | 8,377 | 9,124 | → |
| Camas | City | Clark | 12,841 | 19,821 | 23,845 | → |
| Carbonado | Town | Pierce | 648 | 608 | 714 | → |
| Carnation | City | King | 1,914 | 1,786 | 2,234 | → |
| Cashmere | City | Chelan | 2,972 | 3,116 | 3,157 | → |
| Castle Rock | City | Cowlitz | ... | 2,117 | 2,271 | → |
| Cathlamet | Town | Wahkiakum | 563 | 534 | 567 | → |
| Centralia | City | Lewis | 14,826 | 16,629 | 17,495 | → |
| Chehalis | City | Lewis | 7,021 | 7,262 | 7,633 | → |
| Chelan | City | Chelan | 3,803 | 3,874 | 4,222 | → |
| Cheney | City | Spokane | 8,831 | 10,592 | 12,403 | → |
| Chewelah | City | Stevens | 2,221 | 2,603 | 2,665 | → |
| Clarkston | City | Asotin | 7,279 | 7,232 | 7,407 | → |
| Cle Elum | City | Kittitas | 1,748 | 1,874 | 2,004 | → |
| Clyde Hill | City | King | 2,892 | 2,988 | 3,384 | → |
| Colfax | City | Whitman | 2,885 | 2,796 | 2,911 | → |
| College Place | City | Walla Walla | 7,801 | 8,787 | 9,358 | → |
| Colton | Town | Whitman | 385 | 429 | 467 | → |
| Colville | City | Stevens | 4,951 | 4,731 | 4,831 | → |
| Conconully | Town | Okanogan | 213 | 203 | 210 | → |
| Concrete | Town | Skagit | 797 | 705 | 737 | → |
| Connell | City | Franklin | 3,021 | 4,210 | 5,566 | → |
| Cosmopolis | City | Grays Harbor | 1,557 | 1,656 | 1,647 | → |
| Coulee City | Town | Grant | 598 | 562 | 572 | → |
| Coulee Dam | Town | Douglas / Grant / Okanogan | 1,053 | 1,098 | 1,084 | → |
| Coupeville | Town | Island | 1,747 | 1,831 | 1,959 | → |
| Covington | City | King | 14,183 | 17,565 | 21,202 | → |
| Creston | Town | Lincoln | 233 | 236 | 228 | → |
| Cusick | Town | Pend Oreille | 210 | 209 | 220 | → |
| Darrington | Town | Snohomish | 1,241 | 1,347 | 1,420 | → |
| Davenport | City | Lincoln | 1,743 | 1,734 | 1,724 | → |
| Dayton | City | Columbia | 2,671 | 2,534 | 2,489 | → |
| Deer Park | City | Spokane | 3,009 | 3,661 | 4,245 | → |
| Des Moines | City | King | 29,606 | 29,654 | 32,364 | → |
| DuPont | City | Pierce | 2,120 | 8,199 | 9,503 | → |
| Duvall | City | King | 4,676 | 6,713 | 8,061 | → |
| East Wenatchee | City | Douglas | 11,686 | 13,179 | 14,168 | → |
| Eatonville | Town | Pierce | 2,094 | 2,756 | 3,025 | → |
| Edgewood | City | Pierce | 9,123 | 9,379 | 11,654 | → |
| Edmonds | City | Snohomish | 39,431 | 39,747 | 42,767 | → |
| Electric City | City | Grant | 1,054 | 979 | 1,016 | → |
| Ellensburg | City | Kittitas | 15,501 | 18,391 | 20,977 | → |
| Elma | City | Grays Harbor | 3,109 | 3,299 | 3,320 | → |
| Elmer City | Town | Okanogan | 262 | 251 | 248 | → |
| Endicott | Town | Whitman | 343 | 299 | 308 | → |
| Entiat | City | Chelan | 1,024 | 1,113 | 1,250 | → |
| Enumclaw | City | King / Pierce | 11,121 | 11,090 | 11,878 | → |
| Ephrata | City | Grant | 6,822 | 7,669 | 8,190 | → |
| Everett | City | Snohomish | 95,617 | 103,070 | 111,262 | → |
| Everson | City | Whatcom | 2,005 | 2,464 | 2,779 | → |
| Fairfield | Town | Spokane | 498 | 614 | 620 | → |
| Farmington | Town | Whitman | 149 | 150 | 154 | → |
| Federal Way | City | King | 85,431 | 89,300 | 97,044 | → |
| Ferndale | City | Whatcom | 8,820 | 11,411 | 14,564 | → |
| Fife | City | Pierce | 4,891 | 9,178 | 10,191 | → |
| Fircrest | City | Pierce | 5,855 | 6,495 | 6,810 | → |
| Forks | City | Clallam | 3,258 | 3,548 | 3,862 | → |
| Friday Harbor | Town | San Juan | 2,008 | 2,176 | 2,474 | → |
| Garfield | Town | Whitman | 640 | 599 | 618 | → |
| George | City | Grant | 538 | 501 | 518 | → |
| Gig Harbor | City | Pierce | 6,704 | 7,136 | 10,422 | → |
| Gold Bar | City | Snohomish | 2,014 | 2,154 | 2,345 | → |
| Goldendale | City | Klickitat | 3,787 | 3,407 | 3,497 | → |
| Grand Coulee | City | Grant | 938 | 1,025 | 1,056 | → |
| Grandview | City | Yakima | 9,035 | 10,854 | 11,147 | → |
| Granger | City | Yakima | 2,640 | 3,258 | 3,792 | → |
| Granite Falls | City | Snohomish | 2,437 | 3,388 | 3,803 | → |
| Hamilton | Town | Skagit | 326 | 301 | 312 | → |
| Harrah | Town | Yakima | 501 | 624 | 642 | → |
| Harrington | City | Lincoln | 426 | 427 | 415 | → |
| Hartline | Town | Grant | 131 | 151 | 156 | → |
| Hatton | Town | Adams | 103 | 101 | 102 | → |
| Hoquiam | City | Grays Harbor | 9,120 | 8,726 | 8,596 | → |
| Hunts Point | Town | King | 456 | 396 | 437 | → |
| Ilwaco | City | Pacific | 955 | 936 | 963 | → |
| Index | Town | Snohomish | 160 | 176 | 209 | → |
| Ione | Town | Pend Oreille | 481 | 445 | 466 | → |
| Issaquah | City | King | 17,296 | 30,440 | 39,378 | → |
| Kahlotus | City | Franklin | 236 | 189 | 195 | → |
| Kalama | City | Cowlitz | 1,821 | 2,366 | 2,718 | → |
| Kelso | City | Cowlitz | 11,804 | 11,916 | 12,303 | → |
| Kenmore | City | King | 18,668 | 20,476 | 23,093 | → |
| Kennewick | City | Benton | 59,188 | 73,995 | 82,943 | → |
| Kent | City | King | ... | 118,614 | 129,618 | → |
| Kettle Falls | City | Stevens | 1,558 | 1,578 | 1,629 | → |
| Kirkland | City | King | ... | 80,585 | 89,557 | → |
| Kittitas | City | Kittitas | 1,107 | 1,349 | 1,493 | → |
| Krupp | Town | Grant | 60 | 48 | 50 | → |
| La Center | City | Clark | 1,747 | 2,951 | 3,281 | → |
| La Conner | Town | Skagit | 777 | 887 | 958 | → |
| Lacey | City | Thurston | 31,391 | 42,586 | 50,718 | → |
| LaCrosse | Town | Whitman | 380 | 313 | 324 | → |
| Lake Forest Park | City | King | 13,195 | 12,602 | 13,569 | → |
| Lake Stevens | City | Snohomish | 21,518 | 28,061 | 33,378 | → |
| Lakewood | City | Pierce | 59,348 | 57,532 | 60,538 | → |
| Lamont | Town | Whitman | 106 | 70 | 76 | → |
| Langley | City | Island | 966 | 1,015 | 1,136 | → |
| Latah | Town | Spokane | 150 | 180 | 187 | → |
| Leavenworth | City | Chelan | 2,072 | 1,963 | 2,010 | → |
| Liberty Lake | City | Spokane | 3,409 | 7,594 | 10,594 | → |
| Lind | Town | Adams | 570 | 562 | 560 | → |
| Long Beach | City | Pacific | 1,375 | 1,399 | 1,436 | → |
| Longview | City | Cowlitz | 35,364 | 36,831 | 38,112 | → |
| Lyman | Town | Skagit | 391 | 438 | 473 | → |
| Lynden | City | Whatcom | 9,522 | 11,985 | 14,736 | → |
| Lynnwood | City | Snohomish | 34,138 | 35,873 | 38,511 | → |
| Mabton | City | Yakima | 1,918 | 2,281 | 2,282 | → |
| Malden | Town | Whitman | 214 | 203 | 209 | → |
| Mansfield | Town | Douglas | 319 | 320 | 343 | → |
| Maple Valley | City | King | 14,284 | 22,703 | 27,114 | → |
| Marcus | Town | Stevens | 141 | 183 | 184 | → |
| Marysville | City | Snohomish | 47,847 | 60,007 | 69,779 | → |
| Mattawa | City | Grant | 2,556 | 4,333 | 4,608 | → |
| McCleary | City | Grays Harbor | 1,480 | 1,652 | 1,732 | → |
| Medical Lake | City | Spokane | 3,841 | 5,059 | 4,952 | → |
| Medina | City | King | 2,989 | 2,969 | 3,295 | → |
| Mercer Island | City | King | 22,034 | 22,699 | 25,976 | → |
| Mesa | City | Franklin | 425 | 495 | 513 | → |
| Metaline | Town | Pend Oreille | 162 | 173 | 182 | → |
| Metaline Falls | Town | Pend Oreille | 227 | 238 | 250 | → |
| Mill Creek | City | Snohomish | 14,001 | 18,194 | 20,986 | → |
| Millwood | City | Spokane | 1,649 | 1,786 | 1,788 | → |
| Milton | City | King / Pierce | 5,777 | 7,351 | 8,258 | → |
| Monroe | City | Snohomish | 13,938 | 17,341 | 19,363 | → |
| Montesano | City | Grays Harbor | 3,494 | 3,991 | 4,028 | → |
| Morton | City | Lewis | 1,048 | 1,122 | 1,178 | → |
| Moses Lake | City | Grant | 15,281 | 20,371 | 24,009 | → |
| Mossyrock | City | Lewis | 687 | 759 | 803 | → |
| Mount Vernon | City | Skagit | 26,683 | 31,720 | 35,741 | → |
| Mountlake Terrace | City | Snohomish | 20,394 | 19,885 | 21,420 | → |
| Moxee | City | Yakima | 974 | 3,454 | 4,073 | → |
| Mukilteo | City | Snohomish | 18,005 | 20,275 | 21,545 | → |
| Naches | Town | Yakima | 806 | 811 | 831 | → |
| Napavine | City | Lewis | 1,497 | 1,795 | 1,952 | → |
| Nespelem | Town | Okanogan | 221 | 232 | 352 | → |
| Newcastle | City | King | 7,950 | 10,368 | 11,823 | → |
| Newport | City | Pend Oreille | 1,952 | 2,120 | 2,150 | → |
| Nooksack | City | Whatcom | 863 | 1,330 | 1,576 | → |
| Normandy Park | City | King | 6,371 | 6,336 | 6,660 | → |
| North Bend | City | King | 5,779 | 5,850 | 7,136 | → |
| North Bonneville | City | Skamania | 596 | 958 | 1,000 | → |
| Northport | Town | Stevens | 348 | 295 | 297 | → |
| Oak Harbor | City | Island | 19,659 | 22,161 | 23,401 | → |
| Oakesdale | Town | Whitman | 420 | 422 | 441 | → |
| Oakville | City | Grays Harbor | 657 | 688 | 690 | → |
| Ocean Shores | City | Grays Harbor | 3,836 | 5,571 | 6,112 | → |
| Odessa | Town | Lincoln | 964 | 911 | 882 | → |
| Okanogan | City | Okanogan | 2,486 | 2,607 | 2,591 | → |
| Olympia | City | Thurston | 43,009 | 46,881 | 52,555 | → |
| Omak | City | Okanogan | 4,818 | 4,794 | 4,806 | → |
| Oroville | City | Okanogan | 1,700 | 1,706 | 1,681 | → |
| Orting | City | Pierce | 3,933 | 6,737 | 8,395 | → |
| Othello | City | Adams | 5,841 | 7,350 | 8,269 | → |
| Pacific | City | King / Pierce | 5,616 | 6,605 | 7,219 | → |
| Palouse | City | Whitman | 1,007 | 994 | 1,074 | → |
| Pasco | City | Franklin | 33,892 | 62,160 | 74,778 | → |
| Pateros | City | Okanogan | 634 | 678 | 714 | → |
| Pe Ell | Town | Lewis | 645 | 632 | 667 | → |
| Pomeroy | City | Garfield | 1,522 | 1,431 | 1,410 | → |
| Port Angeles | City | Clallam | 18,405 | 19,040 | 20,076 | → |
| Port Orchard | City | Kitsap | ... | 12,191 | 14,389 | → |
| Port Townsend | City | Jefferson | 8,308 | 9,113 | 9,704 | → |
| Poulsbo | City | Kitsap | 7,028 | 9,239 | 10,927 | → |
| Prescott | City | Walla Walla | 338 | 306 | 307 | → |
| Prosser | City | Benton | 4,830 | 5,713 | 6,313 | → |
| Pullman | City | Whitman | 24,982 | 29,822 | 34,019 | → |
| Puyallup | City | Pierce | 34,191 | 37,241 | 41,886 | → |
| Quincy | City | Grant | 5,063 | 6,766 | 7,838 | → |
| Rainier | City | Thurston | 1,505 | 1,798 | 2,203 | → |
| Raymond | City | Pacific | 2,968 | 2,869 | 2,963 | → |
| Reardan | Town | Lincoln | 612 | 571 | 593 | → |
| Redmond | City | King | 45,580 | 54,511 | 67,678 | → |
| Renton | City | King | 69,989 | 91,903 | 102,153 | → |
| Republic | City | Ferry | 967 | 1,066 | 1,070 | → |
| Richland | City | Benton | 38,687 | 48,105 | 57,303 | → |
| Ridgefield | City | Clark | 2,324 | 4,795 | 8,357 | → |
| Ritzville | City | Adams | 1,750 | 1,680 | 1,649 | → |
| Riverside | Town | Okanogan | 353 | 280 | 274 | → |
| Rock Island | City | Douglas | 861 | 875 | 1,052 | → |
| Rockford | Town | Spokane | 415 | 473 | 483 | → |
| Rosalia | Town | Whitman | 650 | 549 | 563 | → |
| Roslyn | City | Kittitas | 1,002 | 893 | 959 | → |
| Roy | City | Pierce | 790 | 780 | 822 | → |
| Royal City | City | Grant | 1,830 | 2,142 | 2,230 | → |
| Ruston | Town | Pierce | 738 | 749 | 843 | → |
| Sammamish | City | King | ... | 57,445 | 65,733 | → |
| SeaTac | City | King | 25,548 | 26,901 | 29,239 | → |
| Seattle | City | King | 563,204 | 608,666 | 744,955 | → |
| Sedro-Woolley | City | Skagit | 8,888 | 11,072 | 12,054 | → |
| Selah | City | Yakima | 6,310 | 7,343 | 8,024 | → |
| Sequim | City | Clallam | 4,579 | 6,596 | 7,481 | → |
| Shelton | City | Mason | 8,522 | 9,840 | 10,364 | → |
| Shoreline | City | King | 53,014 | 53,031 | 56,752 | → |
| Skykomish | Town | King | 234 | 197 | 222 | → |
| Snohomish | City | Snohomish | 8,913 | 9,143 | 10,185 | → |
| Snoqualmie | City | King | 2,032 | 10,665 | 13,752 | → |
| Soap Lake | City | Grant | 1,722 | 1,544 | 1,606 | → |
| South Bend | City | Pacific | 1,827 | 1,632 | 1,674 | → |
| South Cle Elum | Town | Kittitas | 500 | 530 | 563 | → |
| South Prairie | Town | Pierce | 485 | 427 | 444 | → |
| Spangle | City | Spokane | 245 | 278 | 314 | → |
| Spokane | City | Spokane | 196,588 | 209,455 | 219,190 | → |
| Spokane Valley | City | Spokane | 80,961 | 89,743 | 99,703 | → |
| Sprague | City | Lincoln | 490 | 446 | 450 | → |
| Springdale | Town | Stevens | 302 | 285 | 297 | → |
| St. John | Town | Whitman | 544 | 537 | 564 | → |
| Stanwood | City | Snohomish | 4,211 | 6,241 | 7,204 | → |
| Starbuck | Town | Columbia | 117 | 130 | 133 | → |
| Steilacoom | Town | Pierce | 6,409 | 5,992 | 6,373 | → |
| Stevenson | City | Skamania | 1,323 | 1,472 | 1,583 | → |
| Sultan | City | Snohomish | 3,316 | 4,644 | 5,194 | → |
| Sumas | City | Whatcom | 991 | 1,307 | 1,503 | → |
| Sumner | City | Pierce | 8,537 | 9,447 | 10,173 | → |
| Sunnyside | City | Yakima | 14,121 | 15,922 | 16,742 | → |
| Tacoma | City | Pierce | 193,338 | 198,243 | 216,279 | → |
| Tekoa | City | Whitman | 826 | 781 | 810 | → |
| Tenino | City | Thurston | 1,499 | 1,688 | 1,852 | → |
| Tieton | City | Yakima | 1,180 | 1,182 | 1,302 | → |
| Toledo | City | Lewis | 694 | 721 | 760 | → |
| Tonasket | City | Okanogan | ... | 1,145 | 1,129 | → |
| Toppenish | City | Yakima | 8,910 | 8,933 | 8,894 | → |
| Tukwila | City | King | 17,141 | 19,115 | 20,294 | → |
| Tumwater | City | Thurston | ... | 20,159 | 23,688 | → |
| Twisp | Town | Okanogan | 950 | 910 | 958 | → |
| Union Gap | City | Yakima | 5,621 | 6,125 | 6,160 | → |
| Uniontown | Town | Whitman | 345 | 294 | 345 | → |
| University Place | City | Pierce | 30,049 | 31,133 | 33,740 | → |
| Vader | City | Lewis | 543 | 620 | 655 | → |
| Vancouver | City | Clark | 144,625 | 167,185 | 183,012 | → |
| Waitsburg | City | Walla Walla | 1,231 | 1,215 | 1,211 | → |
| Walla Walla | City | Walla Walla | 30,731 | 32,439 | 32,986 | → |
| Wapato | City | Yakima | 4,587 | 5,016 | 5,048 | → |
| Warden | City | Grant | 2,556 | 2,692 | 2,775 | → |
| Washougal | City | Clark | 8,677 | 14,098 | 16,049 | → |
| Washtucna | Town | Adams | 257 | 208 | 206 | → |
| Waterville | Town | Douglas | 1,165 | 1,138 | 1,213 | → |
| Waverly | Town | Spokane | 121 | 106 | 108 | → |
| Wenatchee | City | Chelan | 28,683 | 32,765 | 34,329 | → |
| West Richland | City | Benton | 8,315 | 11,833 | 14,928 | → |
| Westport | City | Grays Harbor | 2,145 | 2,077 | 2,080 | → |
| White Salmon | City | Klickitat | 2,192 | 2,345 | 2,619 | → |
| Wilbur | Town | Lincoln | 935 | 869 | 846 | → |
| Wilkeson | Town | Pierce | 406 | 474 | 505 | → |
| Wilson Creek | Town | Grant | 237 | 205 | 216 | → |
| Winlock | City | Lewis | 1,210 | 1,344 | 1,387 | → |
| Winthrop | Town | Okanogan | 348 | 401 | 451 | → |
| Woodinville | City | King | 9,819 | 10,941 | 12,815 | → |
| Woodland | City | Cowlitz / Clark | 3,886 | 5,545 | 6,358 | → |
| Woodway | City | Snohomish | 943 | 1,302 | 1,387 | → |
| Yacolt | Town | Clark | 1,048 | 1,572 | 1,799 | → |
| Yakima | City | Yakima | 83,415 | 91,276 | 93,884 | → |
| Yarrow Point | Town | King | 1,008 | 1,001 | 1,147 | → |
| Yelm | City | Thurston | 3,234 | 6,848 | 9,374 | → |
| Zillah | City | Yakima | 2,256 | 3,018 | 3,149 | → |
Source: U.S. Census Bureau (web).
Explanation: Places: 2000 population in the boundaries of 2010 and later population figures in the boundaries of 2018.