All counties in the State of Colorado.
| Name | Status | Population census 2000-04-01 | Population census 2010-04-01 | Population estimate 2011-07-01 | |
|---|---|---|---|---|---|
| Adams (prior 2010 with parts of Broomfield) | County | 348,076 | 441,603 | 451,294 | o |
| Alamosa | County | 14,965 | 15,445 | 16,103 | o |
| Arapahoe | County | 488,829 | 572,137 | 585,712 | o |
| Archuleta | County | 9,894 | 12,084 | 11,995 | o |
| Baca | County | 4,517 | 3,788 | 3,811 | o |
| Bent | County | 5,996 | 6,499 | 6,295 | o |
| Boulder (prior 2010 with parts of Broomfield) | County | 269,784 | 294,571 | 300,406 | o |
| Broomfield | County | 39,202 | 55,870 | 57,193 | o |
| Chaffee | County | 16,250 | 17,809 | 18,026 | o |
| Cheyenne | County | 2,229 | 1,836 | 1,870 | o |
| Clear Creek | County | 9,263 | 9,088 | 9,040 | o |
| Conejos | County | 8,400 | 8,256 | 8,313 | o |
| Costilla | County | 3,661 | 3,524 | 3,646 | o |
| Crowley | County | 5,514 | 5,823 | 5,785 | o |
| Custer | County | 3,508 | 4,255 | 4,226 | o |
| Delta | County | 27,824 | 30,952 | 30,366 | o |
| Denver | County | 553,805 | 600,024 | 619,285 | o |
| Dolores | County | 1,844 | 2,064 | 2,029 | o |
| Douglas | County | 175,732 | 285,465 | 292,362 | o |
| Eagle | County | 41,623 | 52,197 | 51,738 | o |
| El Paso | County | 516,934 | 622,263 | 636,456 | o |
| Elbert | County | 19,855 | 23,086 | 23,233 | o |
| Fremont | County | 46,140 | 46,824 | 47,345 | o |
| Garfield | County | 43,786 | 56,389 | 56,042 | o |
| Gilpin | County | 4,746 | 5,441 | 5,460 | o |
| Grand | County | 12,433 | 14,843 | 14,543 | o |
| Gunnison | County | 14,000 | 15,324 | 15,454 | o |
| Hinsdale | County | 792 | 843 | 834 | o |
| Huerfano | County | 7,859 | 6,711 | 6,503 | o |
| Jackson | County | 1,577 | 1,394 | 1,379 | o |
| Jefferson (prior 2010 with parts of Broomfield) | County | 525,449 | 534,558 | 538,854 | o |
| Kiowa | County | 1,622 | 1,398 | 1,449 | o |
| Kit Carson | County | 8,013 | 8,270 | 8,169 | o |
| La Plata | County | 43,957 | 51,334 | 51,924 | o |
| Lake | County | 7,814 | 7,310 | 7,377 | o |
| Larimer | County | 251,489 | 299,630 | 305,091 | o |
| Las Animas | County | 15,212 | 15,507 | 15,035 | o |
| Lincoln | County | 6,089 | 5,467 | 5,403 | o |
| Logan | County | 20,566 | 22,709 | 22,720 | o |
| Mesa | County | 116,939 | 146,723 | 147,481 | o |
| Mineral | County | 831 | 712 | 711 | o |
| Moffat | County | 13,178 | 13,795 | 13,410 | o |
| Montezuma | County | 23,822 | 25,535 | 25,432 | o |
| Montrose | County | 33,438 | 41,276 | 40,877 | o |
| Morgan | County | 27,172 | 28,159 | 28,562 | o |
| Otero | County | 20,311 | 18,831 | 18,900 | o |
| Ouray | County | 3,747 | 4,436 | 4,435 | o |
| Park | County | 14,519 | 16,206 | 16,063 | o |
| Phillips | County | 4,485 | 4,442 | 4,364 | o |
| Pitkin | County | 14,889 | 17,148 | 17,119 | o |
| Prowers | County | 14,483 | 12,551 | 12,499 | o |
| Pueblo | County | 141,490 | 159,063 | 160,346 | o |
| Rio Blanco | County | 5,992 | 6,666 | 6,836 | o |
| Rio Grande | County | 12,425 | 11,982 | 11,939 | o |
| Routt | County | 19,679 | 23,509 | 23,293 | o |
| Saguache | County | 5,904 | 6,108 | 6,203 | o |
| San Juan | County | 558 | 699 | 700 | o |
| San Miguel | County | 6,593 | 7,359 | 7,480 | o |
| Sedgwick | County | 2,747 | 2,379 | 2,377 | o |
| Summit | County | 23,560 | 27,994 | 27,864 | o |
| Teller | County | 20,541 | 23,350 | 23,317 | o |
| Washington | County | 4,922 | 4,814 | 4,820 | o |
| Weld (prior 2010 with parts of Broomfield) | County | 180,766 | 252,825 | 258,351 | o |
| Yuma | County | 9,846 | 10,043 | 10,157 | o |
| Colorado | Federal State | 4,302,086 | 5,029,196 | 5,116,302 |
All incorporated places in the State of Colorado.
| Name | Status | County | Population census 2000-04-01 | Population census 2010-04-01 | Population estimate 2011-07-01 | |
|---|---|---|---|---|---|---|
| Aguilar | Town | Las Animas | 593 | 538 | 520 | o |
| Akron | Town | Washington | 1,727 | 1,702 | 1,688 | o |
| Alamosa | City | Alamosa | 8,437 | 8,790 | 8,937 | o |
| Alma | Town | Park | 179 | 270 | 268 | o |
| Antonito | Town | Conejos | 873 | 781 | 785 | o |
| Arriba | Town | Lincoln | 244 | 193 | 193 | o |
| Arvada | City | 102,365 | 106,433 | 107,541 | o | |
| Aspen | City | Pitkin | 6,007 | 6,660 | 6,642 | o |
| Ault | Town | Weld | 1,430 | 1,519 | 1,555 | o |
| Aurora | City | 276,449 | 325,078 | 332,354 | o | |
| Avon | Town | Eagle | 5,661 | 6,408 | 6,365 | o |
| Basalt | Town | 2,730 | 3,857 | 3,836 | o | |
| Bayfield | Town | La Plata | 1,584 | 2,333 | 2,361 | o |
| Bennett | Town | 2,050 | 2,308 | 2,360 | o | |
| Berthoud | Town | 4,973 | 5,105 | 5,206 | o | |
| Bethune | Town | Kit Carson | 225 | 237 | 241 | o |
| Black Hawk | City | Gilpin | 118 | 118 | 118 | o |
| Blanca | Town | Costilla | 391 | 385 | 401 | o |
| Blue River | Town | Summit | 685 | 849 | 848 | o |
| Bonanza | Town | Saguache | 14 | 16 | 16 | o |
| Boone | Town | Pueblo | 323 | 339 | 342 | o |
| Boulder | City | Boulder | 94,571 | 97,385 | 98,889 | o |
| Bow Mar | Town | 838 | 866 | 882 | o | |
| Branson | Town | Las Animas | 77 | 74 | 72 | o |
| Breckenridge | Town | Summit | 2,752 | 4,540 | 4,537 | o |
| Brighton | City | 21,009 | 33,352 | 34,069 | o | |
| Brookside | Town | Fremont | 214 | 233 | 235 | o |
| Broomfield | City | 39,193 | 55,889 | 57,352 | o | |
| Brush | City | Morgan | 5,119 | 5,463 | 5,292 | o |
| Buena Vista | Town | Chaffee | 2,196 | 2,617 | 2,638 | o |
| Burlington | City | Kit Carson | 3,678 | 4,254 | 4,074 | o |
| Calhan | Town | El Paso | 896 | 780 | 798 | o |
| Campo | Town | Baca | 150 | 109 | 109 | o |
| Cañon City | City | Fremont | 15,555 | 16,415 | 16,499 | o |
| Carbondale | Town | Garfield | 5,216 | 6,427 | 6,412 | o |
| Castle Pines North | City | Douglas | 3,616 | 10,360 | 10,602 | o |
| Castle Rock | Town | Douglas | 20,323 | 48,231 | 49,355 | o |
| Cedaredge | Town | Delta | 1,848 | 2,253 | 2,216 | o |
| Centennial | City | 102,673 | 100,377 | 102,603 | o | |
| Center | Town | 2,392 | 2,239 | 2,279 | o | |
| Central City | City | Gilpin | 515 | 663 | 667 | o |
| Cheraw | Town | Otero | 213 | 252 | 253 | o |
| Cherry Hills Village | City | Arapahoe | 5,962 | 5,987 | 6,121 | o |
| Cheyenne Wells | Town | Cheyenne | 1,010 | 846 | 864 | o |
| City of Creede | Town | Mineral | 377 | 290 | 288 | o |
| Coal Creek | Town | Fremont | 311 | 343 | 345 | o |
| Cokedale | Town | Las Animas | 139 | 129 | 125 | o |
| Collbran | Town | Mesa | 388 | 708 | 709 | o |
| Colorado Springs | City | El Paso | 361,151 | 416,427 | 426,388 | o |
| Columbine Valley | Town | Arapahoe | 1,146 | 1,256 | 1,284 | o |
| Commerce City | City | Adams | 20,950 | 45,916 | 46,941 | o |
| Cortez | City | Montezuma | 7,993 | 8,482 | 8,451 | o |
| Craig | City | Moffat | 9,193 | 9,464 | 9,229 | o |
| Crawford | Town | Delta | 359 | 431 | 424 | o |
| Crested Butte | Town | Gunnison | 1,529 | 1,487 | 1,496 | o |
| Crestone | Town | Saguache | 88 | 127 | 130 | o |
| Cripple Creek | City | Teller | 1,115 | 1,189 | 1,190 | o |
| Crook | Town | Logan | 128 | 110 | 109 | o |
| Crowley | Town | Crowley | 187 | 176 | 178 | o |
| Dacono | City | Weld | 3,058 | 4,152 | 4,249 | o |
| De Beque | Town | Mesa | 472 | 504 | 505 | o |
| Deer Trail | Town | Arapahoe | 596 | 546 | 559 | o |
| Del Norte | Town | Rio Grande | 1,879 | 1,686 | 1,683 | o |
| Delta | City | Delta | 7,810 | 8,915 | 8,769 | o |
| Denver | City | Denver | 553,691 | 600,008 | 619,968 | o |
| Dillon | Town | Summit | 822 | 915 | 914 | o |
| Dinosaur | Town | Moffat | 319 | 339 | 330 | o |
| Dolores | Town | Montezuma | 862 | 936 | 933 | o |
| Dove Creek | Town | Dolores | 707 | 735 | 732 | o |
| Durango | City | La Plata | 14,474 | 16,887 | 17,069 | o |
| Eads | Town | Kiowa | 747 | 609 | 624 | o |
| Eagle | Town | Eagle | 3,054 | 6,508 | 6,466 | o |
| Eaton | Town | Weld | 2,751 | 4,365 | 4,467 | o |
| Eckley | Town | Yuma | 278 | 257 | 259 | o |
| Edgewater | City | Jefferson | 5,445 | 5,170 | 5,222 | o |
| Elizabeth | Town | Elbert | 1,459 | 1,358 | 1,362 | o |
| Empire | Town | Clear Creek | 355 | 282 | 280 | o |
| Englewood | City | Arapahoe | 31,792 | 30,255 | 30,930 | o |
| Erie | Town | 6,358 | 18,135 | 18,505 | o | |
| Estes Park | Town | Larimer | 5,529 | 5,858 | 5,976 | o |
| Evans | City | Weld | 10,140 | 18,537 | 18,974 | o |
| Fairplay | Town | Park | 625 | 679 | 675 | o |
| Federal Heights | City | Adams | 12,067 | 11,467 | 11,724 | o |
| Firestone | Town | Weld | 2,022 | 10,147 | 10,385 | o |
| Flagler | Town | Kit Carson | 615 | 561 | 568 | o |
| Fleming | Town | Logan | 426 | 408 | 407 | o |
| Florence | City | Fremont | 3,656 | 3,885 | 3,906 | o |
| Fort Collins | City | Larimer | 119,412 | 143,991 | 146,762 | o |
| Fort Lupton | City | Weld | 7,171 | 7,377 | 7,551 | o |
| Fort Morgan | City | Morgan | 11,019 | 11,335 | 11,428 | o |
| Fountain | City | El Paso | 15,300 | 25,846 | 26,475 | o |
| Fowler | Town | Otero | 1,213 | 1,182 | 1,185 | o |
| Foxfield | Town | Arapahoe | 719 | 685 | 701 | o |
| Fraser | Town | Grand | 950 | 1,224 | 1,199 | o |
| Frederick | Town | Weld | 2,540 | 8,679 | 8,884 | o |
| Frisco | Town | Summit | 2,473 | 2,682 | 2,680 | o |
| Fruita | City | Mesa | 6,704 | 12,646 | 12,677 | o |
| Garden City | Town | Weld | 351 | 234 | 240 | o |
| Genoa | Town | Lincoln | 211 | 139 | 139 | o |
| Georgetown | Town | Clear Creek | 1,096 | 1,034 | 1,025 | o |
| Gilcrest | Town | Weld | 1,161 | 1,034 | 1,059 | o |
| Glendale | City | Arapahoe | 4,546 | 4,334 | 4,432 | o |
| Glenwood Springs | City | Garfield | 7,791 | 9,614 | 9,594 | o |
| Golden | City | Jefferson | 17,177 | 18,867 | 19,035 | o |
| Granada | Town | Prowers | 640 | 517 | 516 | o |
| Granby | Town | Grand | 1,691 | 1,864 | 1,827 | o |
| Grand Junction | City | Mesa | 45,482 | 58,564 | 58,704 | o |
| Grand Lake | Town | Grand | 443 | 471 | 461 | o |
| Greeley | City | Weld | 77,954 | 92,889 | 94,962 | o |
| Green Mountain Falls | Town | 720 | 640 | 655 | o | |
| Greenwood Village | City | Arapahoe | 11,411 | 13,925 | 14,237 | o |
| Grover | Town | Weld | 153 | 137 | 141 | o |
| Gunnison | City | Gunnison | 5,411 | 5,856 | 5,886 | o |
| Gypsum | Town | Eagle | 3,826 | 6,489 | 6,446 | o |
| Hartman | Town | Prowers | 111 | 81 | 81 | o |
| Haswell | Town | Kiowa | 84 | 68 | 70 | o |
| Haxtun | Town | Phillips | 985 | 946 | 937 | o |
| Hayden | Town | Routt | 1,652 | 1,810 | 1,789 | o |
| Hillrose | Town | Morgan | 254 | 249 | 251 | o |
| Holly | Town | Prowers | 1,048 | 802 | 803 | o |
| Holyoke | City | Phillips | 2,261 | 2,313 | 2,290 | o |
| Hooper | Town | Alamosa | 123 | 103 | 105 | o |
| Hot Sulphur Springs | Town | Grand | 529 | 663 | 651 | o |
| Hotchkiss | Town | Delta | 1,010 | 944 | 929 | o |
| Hudson | Town | Weld | 1,583 | 2,356 | 2,389 | o |
| Hugo | Town | Lincoln | 885 | 730 | 729 | o |
| Idaho Springs | City | Clear Creek | 1,938 | 1,717 | 1,702 | o |
| Ignacio | Town | La Plata | 833 | 704 | 711 | o |
| Iliff | Town | Logan | 213 | 266 | 264 | o |
| Jamestown | Town | Boulder | 217 | 274 | 280 | o |
| Johnstown | Town | Weld | 4,405 | 9,887 | 10,119 | o |
| Julesburg | Town | Sedgwick | 1,475 | 1,225 | 1,217 | o |
| Keenesburg | Town | Weld | 872 | 1,127 | 1,154 | o |
| Kersey | Town | Weld | 1,409 | 1,454 | 1,488 | o |
| Kim | Town | Las Animas | 65 | 74 | 72 | o |
| Kiowa | Town | Elbert | 595 | 723 | 726 | o |
| Kit Carson | Town | Cheyenne | 253 | 233 | 237 | o |
| Kremmling | Town | Grand | 1,509 | 1,444 | 1,414 | o |
| La Jara | Town | Conejos | 886 | 818 | 822 | o |
| La Junta | City | Otero | 7,575 | 7,077 | 7,089 | o |
| La Salle | Town | Weld | 1,863 | 1,955 | 2,002 | o |
| La Veta | Town | Huerfano | 924 | 800 | 777 | o |
| Lafayette | City | Boulder | 23,187 | 24,453 | 24,865 | o |
| Lake City | Town | Hinsdale | 375 | 408 | 401 | o |
| Lakeside | Town | Jefferson | 20 | 8 | 8 | o |
| Lakewood | City | Jefferson | 144,370 | 142,980 | 144,406 | o |
| Lamar | City | Prowers | 8,869 | 7,926 | 7,925 | o |
| Larkspur | Town | Douglas | 236 | 183 | 187 | o |
| Las Animas | City | Bent | 2,760 | 2,410 | 2,369 | o |
| Leadville | City | Lake | 2,821 | 2,602 | 2,643 | o |
| Limon | Town | Lincoln | 2,071 | 1,880 | 1,874 | o |
| Littleton | City | 40,435 | 41,737 | 42,639 | o | |
| Lochbuie | Town | Weld | 2,068 | 4,726 | 4,838 | o |
| Log Lane Village | Town | Morgan | 1,015 | 873 | 879 | o |
| Lone Tree | City | Douglas | 6,917 | 11,070 | 11,331 | o |
| Longmont | City | 71,248 | 86,270 | 87,712 | o | |
| Louisville | City | Boulder | 18,989 | 18,376 | 18,684 | o |
| Loveland | City | Larimer | 51,308 | 66,859 | 68,203 | o |
| Lyons | Town | Boulder | 1,585 | 2,033 | 2,067 | o |
| Manassa | Town | Conejos | 1,042 | 991 | 994 | o |
| Mancos | Town | Montezuma | 1,120 | 1,336 | 1,330 | o |
| Manitou Springs | City | El Paso | 4,976 | 4,992 | 5,113 | o |
| Manzanola | Town | Otero | 525 | 434 | 436 | o |
| Marble | Town | Gunnison | 105 | 131 | 131 | o |
| Mead | Town | Weld | 1,983 | 3,405 | 3,484 | o |
| Meeker | Town | Rio Blanco | 2,242 | 2,475 | 2,519 | o |
| Merino | Town | Logan | 236 | 284 | 282 | o |
| Milliken | Town | Weld | 2,952 | 5,610 | 5,741 | o |
| Minturn | Town | Eagle | 1,072 | 1,029 | 1,023 | o |
| Moffat | Town | Saguache | 114 | 116 | 119 | o |
| Monte Vista | City | Rio Grande | 4,590 | 4,444 | 4,434 | o |
| Montezuma | Town | Summit | 42 | 65 | 65 | o |
| Montrose | City | Montrose | 12,928 | 19,132 | 19,011 | o |
| Monument | Town | El Paso | 1,975 | 5,530 | 5,666 | o |
| Morrison | Town | Jefferson | 430 | 428 | 431 | o |
| Mount Crested Butte | Town | Gunnison | 713 | 801 | 806 | o |
| Mountain View | Town | Jefferson | 569 | 507 | 512 | o |
| Mountain Village | Town | San Miguel | 978 | 1,320 | 1,344 | o |
| Naturita | Town | Montrose | 635 | 546 | 542 | o |
| Nederland | Town | Boulder | 1,391 | 1,445 | 1,470 | o |
| New Castle | Town | Garfield | 1,992 | 4,518 | 4,508 | o |
| Northglenn | City | 32,223 | 35,786 | 36,588 | o | |
| Norwood | Town | San Miguel | 446 | 518 | 526 | o |
| Nucla | Town | Montrose | 736 | 711 | 707 | o |
| Nunn | Town | Weld | 471 | 416 | 425 | o |
| Oak Creek | Town | Routt | 849 | 884 | 874 | o |
| Olathe | Town | Montrose | 1,595 | 1,849 | 1,838 | o |
| Olney Springs | Town | Crowley | 389 | 345 | 348 | o |
| Ophir | Town | San Miguel | 113 | 159 | 163 | o |
| Orchard City | Town | Delta | 2,885 | 3,119 | 3,069 | o |
| Ordway | Town | Crowley | 1,248 | 1,080 | 1,088 | o |
| Otis | Town | Washington | 534 | 475 | 471 | o |
| Ouray | City | Ouray | 813 | 1,000 | 982 | o |
| Ovid | Town | Sedgwick | 330 | 318 | 316 | o |
| Pagosa Springs | Town | Archuleta | 1,571 | 1,727 | 1,717 | o |
| Palisade | Town | Mesa | 2,579 | 2,692 | 2,698 | o |
| Palmer Lake | Town | El Paso | 2,179 | 2,420 | 2,478 | o |
| Paoli | Town | Phillips | 42 | 34 | 34 | o |
| Paonia | Town | Delta | 1,523 | 1,451 | 1,427 | o |
| Parachute | Town | Garfield | 1,007 | 1,085 | 1,083 | o |
| Parker | Town | Douglas | 23,630 | 45,297 | 46,363 | o |
| Peetz | Town | Logan | 227 | 238 | 237 | o |
| Pierce | Town | Weld | 884 | 834 | 855 | o |
| Pitkin | Town | Gunnison | 124 | 66 | 66 | o |
| Platteville | Town | Weld | 2,379 | 2,485 | 2,543 | o |
| Poncha Springs | Town | Chaffee | 490 | 737 | 742 | o |
| Pritchett | Town | Baca | 137 | 140 | 140 | o |
| Pueblo | City | Pueblo | 102,139 | 106,595 | 107,577 | o |
| Ramah | Town | El Paso | 117 | 123 | 125 | o |
| Rangely | Town | Rio Blanco | 2,100 | 2,365 | 2,405 | o |
| Raymer (New Raymer) | Town | Weld | 91 | 96 | 98 | o |
| Red Cliff | Town | Eagle | 300 | 267 | 266 | o |
| Rico | Town | Dolores | 205 | 265 | 264 | o |
| Ridgway | Town | Ouray | 743 | 924 | 907 | o |
| Rifle | City | Garfield | 6,847 | 9,191 | 9,172 | o |
| Rockvale | Town | Fremont | 425 | 487 | 491 | o |
| Rocky Ford | City | Otero | 4,286 | 3,957 | 3,964 | o |
| Romeo | Town | Conejos | 375 | 404 | 406 | o |
| Rye | Town | Pueblo | 202 | 153 | 155 | o |
| Saguache | Town | Saguache | 578 | 485 | 494 | o |
| Salida | City | Chaffee | 5,585 | 5,236 | 5,274 | o |
| San Luis | Town | Costilla | 739 | 629 | 653 | o |
| Sanford | Town | Conejos | 817 | 879 | 883 | o |
| Sawpit | Town | San Miguel | 25 | 40 | 40 | o |
| Sedgwick | Town | Sedgwick | 191 | 146 | 145 | o |
| Seibert | Town | Kit Carson | 180 | 181 | 182 | o |
| Severance | Town | Weld | 658 | 3,165 | 3,239 | o |
| Sheridan | City | Arapahoe | 5,534 | 5,664 | 5,791 | o |
| Sheridan Lake | Town | Kiowa | 66 | 88 | 90 | o |
| Silt | Town | Garfield | 1,740 | 2,930 | 2,925 | o |
| Silver Cliff | Town | Custer | 512 | 587 | 580 | o |
| Silver Plume | Town | Clear Creek | 203 | 170 | 169 | o |
| Silverthorne | Town | Summit | 3,198 | 3,880 | 3,876 | o |
| Silverton | Town | San Juan | 531 | 637 | 631 | o |
| Simla | Town | Elbert | 663 | 618 | 621 | o |
| Snowmass Village | Town | Pitkin | 1,822 | 2,826 | 2,818 | o |
| South Fork | Town | Rio Grande | 604 | 378 | 377 | o |
| Springfield | Town | Baca | 1,572 | 1,451 | 1,454 | o |
| Starkville | Town | Las Animas | 128 | 59 | 57 | o |
| Steamboat Springs | City | Routt | 9,937 | 12,088 | 11,951 | o |
| Sterling | City | Logan | 12,785 | 14,777 | 14,725 | o |
| Stratton | Town | Kit Carson | 669 | 658 | 667 | o |
| Sugar City | Town | Crowley | 279 | 258 | 260 | o |
| Superior | Town | 9,008 | 12,483 | 12,692 | o | |
| Swink | Town | Otero | 696 | 617 | 617 | o |
| Telluride | Town | San Miguel | 2,253 | 2,327 | 2,368 | o |
| Thornton | City | 82,035 | 118,775 | 121,435 | o | |
| Timnath | Town | Larimer | 288 | 625 | 638 | o |
| Trinidad | City | Las Animas | 9,096 | 9,096 | 8,817 | o |
| Two Buttes | Town | Baca | 67 | 43 | 42 | o |
| Vail | Town | Eagle | 4,630 | 5,305 | 5,270 | o |
| Victor | City | Teller | 445 | 397 | 397 | o |
| Vilas | Town | Baca | 110 | 114 | 114 | o |
| Vona | Town | Kit Carson | 95 | 106 | 108 | o |
| Walden | Town | Jackson | 734 | 608 | 597 | o |
| Walsenburg | City | Huerfano | 4,182 | 3,068 | 2,980 | o |
| Walsh | Town | Baca | 715 | 546 | 548 | o |
| Ward | Town | Boulder | 169 | 150 | 152 | o |
| Wellington | Town | Larimer | 2,674 | 6,289 | 6,416 | o |
| Westcliffe | Town | Custer | 417 | 568 | 563 | o |
| Westminster | City | 100,977 | 106,114 | 107,967 | o | |
| Wheat Ridge | City | Jefferson | 32,915 | 30,166 | 30,465 | o |
| Wiggins | Town | Morgan | 852 | 893 | 900 | o |
| Wiley | Town | Prowers | 483 | 405 | 405 | o |
| Williamsburg | Town | Fremont | 708 | 662 | 664 | o |
| Windsor | Town | 10,095 | 18,644 | 19,066 | o | |
| Winter Park | Town | Grand | 668 | 999 | 979 | o |
| Woodland Park | City | Teller | 6,783 | 7,200 | 7,201 | o |
| Wray | City | Yuma | 2,194 | 2,342 | 2,354 | o |
| Yampa | Town | Routt | 443 | 429 | 423 | o |
| Yuma | City | Yuma | 3,291 | 3,524 | 3,544 | o |
Source: US Census Bureau (web).
2012-07-02WWW.CITYPOPULATION.DE