All counties in the State of Colorado.
| Name | Status | Population census 2000-04-01 | Population estimate 2005-07-01 | Population estimate 2009-07-01 | |
|---|---|---|---|---|---|
| Adams (prior 2010 with parts of Broomfield) | County | 347,985 | 397,463 | 440,994 | o |
| Alamosa | County | 14,966 | 15,317 | 15,424 | o |
| Arapahoe | County | 488,890 | 525,293 | 565,360 | o |
| Archuleta | County | 9,896 | 11,623 | 12,430 | o |
| Baca | County | 4,517 | 3,979 | 3,723 | o |
| Bent | County | 5,998 | 6,169 | 6,560 | o |
| Boulder (prior 2010 with parts of Broomfield) | County | 269,768 | 286,545 | 303,482 | o |
| Broomfield | County | 39,193 | 48,490 | 55,990 | o |
| Chaffee | County | 16,242 | 16,710 | 17,156 | o |
| Cheyenne | County | 2,231 | 1,875 | 1,746 | o |
| Clear Creek | County | 9,322 | 9,011 | 8,706 | o |
| Conejos | County | 8,400 | 8,190 | 7,844 | o |
| Costilla | County | 3,663 | 3,370 | 3,148 | o |
| Crowley | County | 5,518 | 5,939 | 6,403 | o |
| Custer | County | 3,503 | 3,879 | 4,000 | o |
| Delta | County | 27,834 | 29,491 | 31,322 | o |
| Denver | County | 553,691 | 561,323 | 610,345 | o |
| Dolores | County | 1,844 | 1,803 | 1,940 | o |
| Douglas | County | 175,766 | 246,058 | 288,225 | o |
| Eagle | County | 41,675 | 47,719 | 53,653 | o |
| El Paso | County | 516,933 | 567,103 | 604,542 | o |
| Elbert | County | 19,872 | 22,374 | 23,287 | o |
| Fremont | County | 46,145 | 46,930 | 47,815 | o |
| Garfield | County | 43,791 | 49,177 | 56,298 | o |
| Gilpin | County | 4,771 | 4,939 | 5,604 | o |
| Grand | County | 12,442 | 13,114 | 13,911 | o |
| Gunnison | County | 13,956 | 14,403 | 15,350 | o |
| Hinsdale | County | 790 | 792 | 821 | o |
| Huerfano | County | 7,862 | 7,763 | 7,558 | o |
| Jackson | County | 1,577 | 1,422 | 1,369 | o |
| Jefferson (prior 2010 with parts of Broomfield) | County | 525,330 | 522,007 | 536,922 | o |
| Kiowa | County | 1,622 | 1,385 | 1,238 | o |
| Kit Carson | County | 8,011 | 8,010 | 8,402 | o |
| La Plata | County | 43,949 | 47,792 | 51,464 | o |
| Lake | County | 7,812 | 7,653 | 8,046 | o |
| Larimer | County | 251,486 | 275,477 | 298,382 | o |
| Las Animas | County | 15,207 | 15,608 | 16,020 | o |
| Lincoln | County | 6,087 | 5,471 | 5,169 | o |
| Logan | County | 20,574 | 20,849 | 20,772 | o |
| Mesa | County | 116,935 | 129,457 | 146,093 | o |
| Mineral | County | 831 | 923 | 912 | o |
| Moffat | County | 13,184 | 13,122 | 13,980 | o |
| Montezuma | County | 23,830 | 24,468 | 25,368 | o |
| Montrose | County | 33,432 | 37,069 | 41,412 | o |
| Morgan | County | 27,171 | 27,567 | 27,850 | o |
| Otero | County | 20,311 | 19,184 | 18,670 | o |
| Ouray | County | 3,742 | 4,160 | 4,602 | o |
| Park | County | 14,523 | 16,560 | 16,762 | o |
| Phillips | County | 4,480 | 4,524 | 4,472 | o |
| Pitkin | County | 14,872 | 14,905 | 16,043 | o |
| Prowers | County | 14,483 | 13,684 | 12,982 | o |
| Pueblo | County | 141,472 | 149,677 | 157,224 | o |
| Rio Blanco | County | 5,986 | 5,832 | 6,534 | o |
| Rio Grande | County | 12,413 | 12,043 | 11,581 | o |
| Routt | County | 19,688 | 21,282 | 23,469 | o |
| Saguache | County | 5,917 | 6,822 | 7,097 | o |
| San Juan | County | 558 | 565 | 555 | o |
| San Miguel | County | 6,594 | 7,193 | 7,558 | o |
| Sedgwick | County | 2,747 | 2,471 | 2,326 | o |
| Summit | County | 23,548 | 25,287 | 27,239 | o |
| Teller | County | 20,555 | 21,282 | 21,685 | o |
| Washington | County | 4,926 | 4,718 | 4,420 | o |
| Weld (prior 2010 with parts of Broomfield) | County | 180,857 | 225,856 | 254,759 | o |
| Yuma | County | 9,841 | 9,613 | 9,734 | o |
| Colorado | Federal State | 4,302,015 | 4,660,780 | 5,024,748 |
Contents: All incorporated places in the State of Colorado.
| Name | Status | County | Population census 2000-04-01 | Population estimate 2005-07-01 | Population estimate 2009-07-01 | |
|---|---|---|---|---|---|---|
| Aguilar | Town | Las Animas | 593 | 566 | 568 | o |
| Akron | Town | Washington | 1,727 | 1,739 | 1,638 | o |
| Alamosa | City | Alamosa | 8,437 | 8,679 | 8,756 | o |
| Alma | Town | Park | 179 | 179 | 169 | o |
| Antonito | Town | Conejos | 873 | 813 | 761 | o |
| Arriba | Town | Lincoln | 244 | 218 | 201 | o |
| Arvada | City | 102,365 | 103,040 | 108,208 | o | |
| Aspen | City | Pitkin | 6,007 | 5,824 | 6,089 | o |
| Ault | Town | Weld | 1,430 | 1,409 | 1,467 | o |
| Aurora | City | 276,449 | 295,511 | 323,348 | o | |
| Avon | Town | Eagle | 5,661 | 6,400 | 6,720 | o |
| Basalt | Town | 2,730 | 3,065 | 3,332 | o | |
| Bayfield | Town | La Plata | 1,584 | 1,678 | 2,087 | o |
| Bennett | Town | 2,050 | 2,545 | 2,659 | o | |
| Berthoud | Town | 4,973 | 5,145 | 5,474 | o | |
| Bethune | Town | Kit Carson | 225 | 216 | 215 | o |
| Black Hawk | City | Gilpin | 118 | 108 | 114 | o |
| Blanca | Town | Costilla | 391 | 365 | 331 | o |
| Blue River | Town | Summit | 685 | 826 | 997 | o |
| Bonanza | Town | Saguache | 14 | 15 | 14 | o |
| Boone | Town | Pueblo | 323 | 332 | 339 | o |
| Boulder | City | Boulder | 94,571 | 97,233 | 100,160 | o |
| Bow Mar | Town | 838 | 793 | 823 | o | |
| Branson | Town | Las Animas | 77 | 77 | 77 | o |
| Breckenridge | Town | Summit | 2,752 | 3,165 | 3,533 | o |
| Brighton | City | 21,009 | 27,831 | 32,281 | o | |
| Brookside | Town | Fremont | 214 | 211 | 207 | o |
| Broomfield | City | 39,193 | 48,490 | 55,990 | o | |
| Brush | City | Morgan | 5,119 | 5,190 | 5,391 | o |
| Buena Vista | Town | Chaffee | 2,196 | 2,139 | 2,143 | o |
| Burlington | City | Kit Carson | 3,678 | 3,923 | 4,397 | o |
| Calhan | Town | El Paso | 896 | 891 | 883 | o |
| Campo | Town | Baca | 150 | 132 | 123 | o |
| Canon City | City | Fremont | 15,555 | 15,604 | 15,906 | o |
| Carbondale | Town | Garfield | 5,216 | 5,753 | 6,313 | o |
| Castle Pines North | City | Douglas | 3,616 | 3,716 | 3,820 | o |
| Castle Rock | Town | Douglas | 20,323 | 35,249 | 45,691 | o |
| Cedaredge | Town | Delta | 1,848 | 2,115 | 2,272 | o |
| Centennial | City | 102,673 | 97,418 | 100,557 | o | |
| Center | Town | 2,392 | 2,424 | 2,383 | o | |
| Central City | City | Gilpin | 515 | 491 | 645 | o |
| Cheraw | Town | Otero | 213 | 208 | 200 | o |
| Cherry Hills Village | City | Arapahoe | 5,962 | 6,089 | 6,437 | o |
| Cheyenne Wells | Town | Cheyenne | 1,010 | 841 | 786 | o |
| Coal Creek | Town | Fremont | 311 | 360 | 366 | o |
| Cokedale | Town | Las Animas | 139 | 132 | 133 | o |
| Collbran | Town | Mesa | 388 | 404 | 439 | o |
| Colorado Springs | City | El Paso | 361,151 | 393,804 | 399,827 | o |
| Columbine Valley | Town | Arapahoe | 1,146 | 1,221 | 1,331 | o |
| Commerce City | City | Adams | 20,950 | 33,752 | 44,067 | o |
| Cortez | City | Montezuma | 7,993 | 8,167 | 8,632 | o |
| Craig | City | Moffat | 9,193 | 8,933 | 9,301 | o |
| Crawford | Town | Delta | 359 | 378 | 395 | o |
| Creede | Town | Mineral | 377 | 409 | 403 | o |
| Crested Butte | Town | Gunnison | 1,529 | 1,581 | 1,673 | o |
| Crestone | Town | Saguache | 88 | 97 | 109 | o |
| Cripple Creek | City | Teller | 1,115 | 1,036 | 1,025 | o |
| Crook | Town | Logan | 128 | 127 | 123 | o |
| Crowley | Town | Crowley | 187 | 174 | 162 | o |
| Dacono | City | Weld | 3,058 | 3,545 | 4,172 | o |
| De Beque | Town | Mesa | 472 | 499 | 543 | o |
| Deer Trail | Town | Arapahoe | 596 | 574 | 585 | o |
| Del Norte | Town | Rio Grande | 1,879 | 1,709 | 1,592 | o |
| Delta | City | Delta | 7,810 | 8,223 | 9,253 | o |
| Denver | City | Denver | 553,691 | 561,323 | 610,345 | o |
| Dillon | Town | Summit | 822 | 782 | 810 | o |
| Dinosaur | Town | Moffat | 319 | 331 | 338 | o |
| Dolores | Town | Montezuma | 862 | 861 | 916 | o |
| Dove Creek | Town | Dolores | 707 | 683 | 728 | o |
| Durango | City | La Plata | 14,474 | 15,623 | 16,627 | o |
| Eads | Town | Kiowa | 747 | 635 | 567 | o |
| Eagle | Town | Eagle | 3,054 | 4,301 | 6,033 | o |
| Eaton | Town | Weld | 2,751 | 3,928 | 4,264 | o |
| Eckley | Town | Yuma | 278 | 268 | 269 | o |
| Edgewater | City | Jefferson | 5,445 | 5,166 | 5,159 | o |
| Elizabeth | Town | Elbert | 1,459 | 1,513 | 1,464 | o |
| Empire | Town | Clear Creek | 355 | 334 | 319 | o |
| Englewood | City | Arapahoe | 31,792 | 32,229 | 32,883 | o |
| Erie | Town | 6,358 | 12,482 | 17,255 | o | |
| Estes Park | Town | Larimer | 5,529 | 5,891 | 6,543 | o |
| Evans | City | Weld | 10,140 | 17,202 | 19,481 | o |
| Fairplay | Town | Park | 625 | 664 | 648 | o |
| Federal Heights | City | Adams | 12,067 | 11,767 | 12,274 | o |
| Firestone | Town | Weld | 2,022 | 6,401 | 8,356 | o |
| Flagler | Town | Kit Carson | 615 | 585 | 575 | o |
| Fleming | Town | Logan | 426 | 439 | 431 | o |
| Florence | City | Fremont | 3,656 | 3,562 | 3,592 | o |
| Fort Collins | City | Larimer | 119,412 | 129,497 | 138,733 | o |
| Fort Lupton | City | Weld | 7,171 | 7,387 | 7,737 | o |
| Fort Morgan | City | Morgan | 11,019 | 10,607 | 10,469 | o |
| Fountain | City | El Paso | 15,300 | 20,009 | 24,430 | o |
| Fowler | Town | Otero | 1,213 | 1,126 | 1,087 | o |
| Foxfield | Town | Arapahoe | 719 | 860 | 934 | o |
| Fraser | Town | Grand | 950 | 920 | 963 | o |
| Frederick | Town | Weld | 2,540 | 6,547 | 8,336 | o |
| Frisco | Town | Summit | 2,473 | 2,468 | 2,744 | o |
| Fruita | City | Mesa | 6,704 | 9,589 | 12,274 | o |
| Garden City | Town | Weld | 351 | 332 | 341 | o |
| Genoa | Town | Lincoln | 211 | 188 | 173 | o |
| Georgetown | Town | Clear Creek | 1,096 | 1,053 | 1,003 | o |
| Gilcrest | Town | Weld | 1,161 | 1,134 | 1,169 | o |
| Glendale | City | Arapahoe | 4,546 | 4,728 | 4,829 | o |
| Glenwood Springs | City | Garfield | 7,791 | 8,461 | 9,107 | o |
| Golden | City | Jefferson | 17,177 | 17,308 | 17,458 | o |
| Granada | Town | Prowers | 640 | 605 | 577 | o |
| Granby | Town | Grand | 1,691 | 1,656 | 1,663 | o |
| Grand Junction | City | Mesa | 45,482 | 50,963 | 58,444 | o |
| Grand Lake | Town | Grand | 443 | 431 | 431 | o |
| Greeley | City | Weld | 77,954 | 86,679 | 92,625 | o |
| Green Mountain Falls | Town | 720 | 741 | 762 | o | |
| Greenwood Village | City | Arapahoe | 11,411 | 13,058 | 14,341 | o |
| Grover | Town | Weld | 153 | 154 | 157 | o |
| Gunnison | City | Gunnison | 5,411 | 5,275 | 5,520 | o |
| Gypsum | Town | Eagle | 3,826 | 5,020 | 6,299 | o |
| Hartman | Town | Prowers | 111 | 107 | 101 | o |
| Haswell | Town | Kiowa | 84 | 74 | 65 | o |
| Haxtun | Town | Phillips | 985 | 984 | 964 | o |
| Hayden | Town | Routt | 1,652 | 1,589 | 1,647 | o |
| Hillrose | Town | Morgan | 254 | 270 | 271 | o |
| Holly | Town | Prowers | 1,048 | 984 | 951 | o |
| Holyoke | City | Phillips | 2,261 | 2,259 | 2,225 | o |
| Hooper | Town | Alamosa | 123 | 128 | 124 | o |
| Hot Sulphur Springs | Town | Grand | 529 | 516 | 514 | o |
| Hotchkiss | Town | Delta | 1,010 | 1,067 | 1,095 | o |
| Hudson | Town | Weld | 1,583 | 1,588 | 1,650 | o |
| Hugo | Town | Lincoln | 885 | 777 | 723 | o |
| Idaho Springs | City | Clear Creek | 1,938 | 1,793 | 1,695 | o |
| Ignacio | Town | La Plata | 833 | 810 | 797 | o |
| Iliff | Town | Logan | 213 | 217 | 216 | o |
| Jamestown | Town | Boulder | 217 | 208 | 218 | o |
| Johnstown | Town | Weld | 4,405 | 7,283 | 9,651 | o |
| Julesburg | Town | Sedgwick | 1,475 | 1,312 | 1,237 | o |
| Keenesburg | Town | Weld | 872 | 1,138 | 1,191 | o |
| Kersey | Town | Weld | 1,409 | 1,406 | 1,486 | o |
| Kim | Town | Las Animas | 65 | 65 | 65 | o |
| Kiowa | Town | Elbert | 595 | 615 | 614 | o |
| Kit Carson | Town | Cheyenne | 253 | 216 | 201 | o |
| Kremmling | Town | Grand | 1,509 | 1,479 | 1,476 | o |
| La Jara | Town | Conejos | 886 | 802 | 768 | o |
| La Junta | City | Otero | 7,575 | 7,146 | 7,000 | o |
| La Salle | Town | Weld | 1,863 | 1,882 | 2,013 | o |
| La Veta | Town | Huerfano | 924 | 855 | 834 | o |
| Lafayette | City | Boulder | 23,187 | 23,999 | 26,146 | o |
| Lake City | Town | Hinsdale | 375 | 369 | 375 | o |
| Lakeside | Town | Jefferson | 20 | 19 | 19 | o |
| Lakewood | City | Jefferson | 144,370 | 139,441 | 141,937 | o |
| Lamar | City | Prowers | 8,869 | 8,300 | 7,874 | o |
| Larkspur | Town | Douglas | 236 | 307 | 343 | o |
| Las Animas | City | Bent | 2,760 | 2,469 | 2,333 | o |
| Leadville | City | Lake | 2,821 | 2,655 | 2,740 | o |
| Limon | Town | Lincoln | 2,071 | 1,822 | 1,700 | o |
| Littleton | City | 40,435 | 40,167 | 41,084 | o | |
| Lochbuie | Town | Weld | 2,068 | 3,583 | 5,078 | o |
| Log Lane Village | Town | Morgan | 1,015 | 1,010 | 982 | o |
| Lone Tree | City | Douglas | 6,917 | 8,459 | 9,549 | o |
| Longmont | City | 71,248 | 82,389 | 88,425 | o | |
| Louisville | City | Boulder | 18,989 | 18,427 | 19,656 | o |
| Loveland | City | Larimer | 51,308 | 60,067 | 66,214 | o |
| Lyons | Town | Boulder | 1,585 | 1,634 | 2,098 | o |
| Manassa | Town | Conejos | 1,042 | 983 | 917 | o |
| Mancos | Town | Montezuma | 1,120 | 1,174 | 1,260 | o |
| Manitou Springs | City | El Paso | 4,976 | 5,091 | 5,222 | o |
| Manzanola | Town | Otero | 525 | 489 | 471 | o |
| Marble | Town | Gunnison | 105 | 104 | 104 | o |
| Mead | Town | Weld | 1,983 | 2,590 | 3,555 | o |
| Meeker | Town | Rio Blanco | 2,242 | 2,166 | 2,469 | o |
| Merino | Town | Logan | 236 | 276 | 268 | o |
| Milliken | Town | Weld | 2,952 | 5,518 | 6,221 | o |
| Minturn | Town | Eagle | 1,072 | 1,109 | 1,212 | o |
| Moffat | Town | Saguache | 114 | 118 | 126 | o |
| Monte Vista | City | Rio Grande | 4,590 | 4,195 | 3,992 | o |
| Montezuma | Town | Summit | 42 | 42 | 44 | o |
| Montrose | City | Montrose | 12,928 | 15,402 | 18,388 | o |
| Monument | Town | El Paso | 1,975 | 3,985 | 4,903 | o |
| Morrison | Town | Jefferson | 430 | 413 | 416 | o |
| Mount Crested Butte | Town | Gunnison | 713 | 778 | 864 | o |
| Mountain View | Town | Jefferson | 569 | 525 | 523 | o |
| Mountain Village | Town | San Miguel | 978 | 1,137 | 1,389 | o |
| Naturita | Town | Montrose | 635 | 661 | 669 | o |
| Nederland | Town | Boulder | 1,391 | 1,339 | 1,401 | o |
| New Castle | Town | Garfield | 1,992 | 2,971 | 4,145 | o |
| Northglenn | City | 32,223 | 33,262 | 34,739 | o | |
| Norwood | Town | San Miguel | 446 | 469 | 460 | o |
| Nucla | Town | Montrose | 736 | 734 | 744 | o |
| Nunn | Town | Weld | 471 | 516 | 551 | o |
| Oak Creek | Town | Routt | 849 | 814 | 841 | o |
| Olathe | Town | Montrose | 1,595 | 1,688 | 1,764 | o |
| Olney Springs | Town | Crowley | 389 | 364 | 339 | o |
| Ophir | Town | San Miguel | 113 | 119 | 128 | o |
| Orchard City | Town | Delta | 2,885 | 3,024 | 3,239 | o |
| Ordway | Town | Crowley | 1,248 | 1,140 | 1,078 | o |
| Otis | Town | Washington | 534 | 498 | 460 | o |
| Ouray | City | Ouray | 813 | 857 | 937 | o |
| Ovid | Town | Sedgwick | 330 | 307 | 287 | o |
| Pagosa Springs | Town | Archuleta | 1,571 | 1,589 | 1,815 | o |
| Palisade | Town | Mesa | 2,579 | 2,699 | 2,931 | o |
| Palmer Lake | Town | El Paso | 2,179 | 2,287 | 2,361 | o |
| Paoli | Town | Phillips | 42 | 42 | 41 | o |
| Paonia | Town | Delta | 1,523 | 1,589 | 1,649 | o |
| Parachute | Town | Garfield | 1,007 | 1,081 | 1,288 | o |
| Parker | Town | Douglas | 23,630 | 37,906 | 44,718 | o |
| Peetz | Town | Logan | 227 | 223 | 246 | o |
| Pierce | Town | Weld | 884 | 863 | 888 | o |
| Pitkin | Town | Gunnison | 124 | 117 | 118 | o |
| Platteville | Town | Weld | 2,379 | 2,577 | 2,692 | o |
| Poncha Springs | Town | Chaffee | 490 | 481 | 481 | o |
| Pritchett | Town | Baca | 137 | 120 | 112 | o |
| Pueblo | City | Pueblo | 102,139 | 102,305 | 104,877 | o |
| Ramah | Town | El Paso | 117 | 122 | 123 | o |
| Rangely | Town | Rio Blanco | 2,100 | 1,996 | 2,188 | o |
| Raymer | Town | Weld | 91 | 91 | 93 | o |
| Red Cliff | Town | Eagle | 300 | 319 | 335 | o |
| Rico | Town | Dolores | 205 | 222 | 253 | o |
| Ridgway | Town | Ouray | 743 | 761 | 806 | o |
| Rifle | City | Garfield | 6,847 | 7,952 | 9,255 | o |
| Rockvale | Town | Fremont | 425 | 422 | 431 | o |
| Rocky Ford | City | Otero | 4,286 | 4,051 | 3,920 | o |
| Romeo | Town | Conejos | 375 | 357 | 333 | o |
| Rye | Town | Pueblo | 202 | 203 | 201 | o |
| Saguache | Town | Saguache | 578 | 589 | 581 | o |
| Salida | City | Chaffee | 5,585 | 5,448 | 5,433 | o |
| San Luis | Town | Costilla | 739 | 682 | 619 | o |
| Sanford | Town | Conejos | 817 | 769 | 718 | o |
| Sawpit | Town | San Miguel | 25 | 24 | 23 | o |
| Sedgwick | Town | Sedgwick | 191 | 171 | 161 | o |
| Seibert | Town | Kit Carson | 180 | 172 | 167 | o |
| Severance | Town | Weld | 658 | 1,896 | 3,066 | o |
| Sheridan | City | Arapahoe | 5,534 | 5,399 | 6,170 | o |
| Sheridan Lake | Town | Kiowa | 66 | 59 | 52 | o |
| Silt | Town | Garfield | 1,740 | 2,232 | 2,693 | o |
| Silver Cliff | Town | Custer | 512 | 578 | 573 | o |
| Silver Plume | Town | Clear Creek | 203 | 189 | 179 | o |
| Silverthorne | Town | Summit | 3,198 | 3,669 | 4,061 | o |
| Silverton | Town | San Juan | 531 | 537 | 527 | o |
| Simla | Town | Elbert | 663 | 717 | 695 | o |
| Snowmass Village | Town | Pitkin | 1,822 | 1,763 | 2,016 | o |
| South Fork | Town | Rio Grande | 604 | 562 | 526 | o |
| Springfield | Town | Baca | 1,572 | 1,347 | 1,265 | o |
| Starkville | Town | Las Animas | 128 | 127 | 128 | o |
| Steamboat Springs | City | Routt | 9,937 | 10,969 | 12,356 | o |
| Sterling | City | Logan | 12,785 | 12,816 | 12,712 | o |
| Stratton | Town | Kit Carson | 669 | 620 | 613 | o |
| Sugar City | Town | Crowley | 279 | 256 | 238 | o |
| Superior | Town | 9,008 | 10,336 | 10,809 | o | |
| Swink | Town | Otero | 696 | 671 | 652 | o |
| Telluride | Town | San Miguel | 2,253 | 2,328 | 2,400 | o |
| Thornton | City | 82,035 | 103,815 | 117,628 | o | |
| Timnath | Town | Larimer | 288 | 267 | 633 | o |
| Trinidad | City | Las Animas | 9,096 | 8,884 | 9,071 | o |
| Two Buttes | Town | Baca | 67 | 59 | 55 | o |
| Vail | Town | Eagle | 4,630 | 4,557 | 4,843 | o |
| Victor | City | Teller | 445 | 408 | 406 | o |
| Vilas | Town | Baca | 110 | 98 | 91 | o |
| Vona | Town | Kit Carson | 95 | 90 | 87 | o |
| Walden | Town | Jackson | 734 | 636 | 594 | o |
| Walsenburg | City | Huerfano | 4,182 | 3,822 | 3,645 | o |
| Walsh | Town | Baca | 715 | 662 | 620 | o |
| Ward | Town | Boulder | 169 | 167 | 173 | o |
| Wellington | Town | Larimer | 2,674 | 4,483 | 5,900 | o |
| Westcliffe | Town | Custer | 417 | 459 | 456 | o |
| Westminster | City | 100,977 | 104,218 | 109,180 | o | |
| Wheat Ridge | City | Jefferson | 32,915 | 30,971 | 31,030 | o |
| Wiggins | Town | Morgan | 852 | 945 | 944 | o |
| Wiley | Town | Prowers | 483 | 466 | 440 | o |
| Williamsburg | Town | Fremont | 708 | 741 | 762 | o |
| Windsor | Town | 10,095 | 14,316 | 17,421 | o | |
| Winter Park | Town | Grand | 668 | 697 | 865 | o |
| Woodland Park | City | Teller | 6,783 | 6,644 | 6,650 | o |
| Wray | City | Yuma | 2,194 | 2,097 | 2,130 | o |
| Yampa | Town | Routt | 443 | 424 | 436 | o |
| Yuma | City | Yuma | 3,291 | 3,239 | 3,287 | o |
Source: US Census Bureau (web).
2010-11-23WWW.CITYPOPULATION.DE© TH. BRINKHOFF