| City | 2025 Pop. ↓ |
|---|---|
| Aurora | 400,571 |
| Arvada | 119,461 |
| Alamosa | 9,928 |
| Applewood | 8,191 |
| Air Force Academy | 6,661 |
| Aspen | 6,355 |
| Avon | 5,834 |
| Ault | 3,158 |
| Acres Green | 2,532 |
| Aristocrat Ranchettes | 2,148 |
| Akron | 1,776 |
| Aetna Estates | 1,284 |
| Alamosa East | 1,284 |
| Aspen Park | 1,037 |
| Allenspark | 646 |
| Antonito | 610 |
| Altona | 538 |
| Aguilar | 445 |
| Arboles | 409 |
| Alma | 323 |
| Avondale | 305 |
| Alpine | 230 |
| Arriba | 199 |
| Atwood | 147 |
| Amherst | 96 |
| Arapahoe | 26 |
| City | 2025 Pop. ↓ |
|---|---|
| Boulder | 104,414 |
| Broomfield | 78,440 |
| Brighton | 43,933 |
| Berthoud | 14,988 |
| Black Forest | 14,767 |
| Berkley | 11,179 |
| Battlement Mesa | 5,317 |
| Brush | 5,224 |
| Breckenridge | 4,863 |
| Basalt | 4,018 |
| Bennett | 3,979 |
| Buena Vista | 3,222 |
| Burlington | 3,102 |
| Bayfield | 2,894 |
| Byers | 1,754 |
| Blue River | 836 |
| Bow Mar | 803 |
| Brook Forest | 669 |
| Beulah Valley | 665 |
| Blende | 609 |
| Blanca | 344 |
| Boone | 310 |
| Brookside | 247 |
| Blue Valley | 214 |
| Bethune | 181 |
| Briggsdale | 155 |
| Bonanza Mountain Estates | 134 |
| Black Hawk | 128 |
| Blue Sky | 123 |
| Bark Ranch | 108 |
| Brick Center | 83 |
| Branson | 58 |
| Brandon | 34 |
| City | 2025 Pop. ↓ |
|---|---|
| Colorado Springs | 494,219 |
| Centennial | 106,007 |
| Castle Rock | 86,434 |
| Commerce City | 71,887 |
| Columbine | 26,355 |
| Cimarron Hills | 19,758 |
| Clifton | 19,331 |
| Cañon City | 17,438 |
| Castle Pines | 17,101 |
| Cherry Creek | 11,166 |
| Cortez | 9,203 |
| Craig | 9,053 |
| Carbondale | 6,878 |
| Cherry Hills Village | 6,169 |
| Castle Pines Village | 5,577 |
| Cedaredge | 2,492 |
| Coal Creek | 2,439 |
| Center | 1,919 |
| Colorado City | 1,867 |
| Columbine Valley | 1,793 |
| Crested Butte | 1,662 |
| Cascade-Chipita Park | 1,214 |
| Cripple Creek | 1,092 |
| Central | 777 |
| Calhan | 704 |
| Cheyenne Wells | 700 |
| Comanche Creek | 570 |
| Cattle Creek | 512 |
| Chacra | 453 |
| Crawford | 413 |
| Coaldale | 410 |
| Coal Creek | 371 |
| Collbran | 363 |
| Capulin | 326 |
| City Creede | 288 |
| Crisman | 284 |
| Catherine | 278 |
| Copper Mountain | 260 |
| Cheraw | 229 |
| Crowley | 153 |
| Crestone | 139 |
| Cokedale | 127 |
| Crook | 121 |
| Colona | 111 |
| Campo | 93 |
| Cope | 58 |
| Cotopaxi | 22 |
| Cathedral | 20 |
| Carbonate | 0 |
| City | 2025 Pop. ↓ |
|---|---|
| Denver | 715,891 |
| Dakota Ridge | 34,791 |
| Durango | 19,820 |
| Delta | 9,956 |
| Derby | 9,340 |
| Dacono | 6,759 |
| Dove Valley | 5,651 |
| Deer Trail | 1,783 |
| Del Norte | 1,384 |
| Dotsero | 1,310 |
| Dillon | 983 |
| Dolores | 942 |
| Dove Creek | 717 |
| Downieville-Lawson-Dumont | 549 |
| De Beque | 468 |
| Dinosaur | 247 |
| Divide | 143 |
| City | 2025 Pop. ↓ |
|---|---|
| Fort Collins | 170,638 |
| Fountain | 27,552 |
| Four Square Mile | 26,775 |
| Firestone | 19,873 |
| Frederick | 19,644 |
| Fort Carson | 19,178 |
| Fruita | 14,077 |
| Federal Heights | 13,642 |
| Fort Morgan | 11,570 |
| Fairmount | 11,108 |
| Fort Lupton | 10,408 |
| Fruitvale | 8,109 |
| Florence | 3,876 |
| Frisco | 2,655 |
| Fraser | 1,493 |
| Fowler | 1,181 |
| Floyd Hill | 820 |
| Fairplay | 742 |
| Foxfield | 722 |
| Fort Garland | 619 |
| Flagler | 580 |
| Fleming | 417 |
| Franktown | 340 |
| Florissant | 190 |
| City | 2025 Pop. ↓ |
|---|---|
| Greeley | 114,833 |
| Grand Junction | 71,870 |
| Golden | 20,140 |
| Greenwood Village | 14,909 |
| Glenwood Springs | 10,411 |
| Gunbarrel | 10,319 |
| Gypsum | 9,331 |
| Gunnison | 6,973 |
| Gleneagle | 6,374 |
| Glendale | 4,345 |
| Genesee | 4,155 |
| Granby | 2,370 |
| Georgetown | 1,350 |
| Gilcrest | 1,010 |
| Grand View Estates | 853 |
| Green Mountain Falls | 583 |
| Granada | 432 |
| Grand Lake | 401 |
| Gerrard | 337 |
| Gold Hill | 254 |
| Garden City | 248 |
| Goldfield | 208 |
| Genoa | 152 |
| Grover | 151 |
| Glendale | 85 |
| Gardner | 71 |
| Guffey | 36 |
| City | 2025 Pop. ↓ |
|---|---|
| Highlands Ranch | 102,714 |
| Holly Hills | 2,871 |
| Holyoke | 2,262 |
| Hayden | 1,911 |
| Hudson | 1,595 |
| Howard | 1,039 |
| Haxtun | 961 |
| Hotchkiss | 959 |
| Holly | 808 |
| Hugo | 768 |
| Hot Sulphur Springs | 646 |
| Hillrose | 307 |
| Hoehne | 115 |
| Heeney | 82 |
| Hasty | 79 |
| Hooper | 79 |
| Haswell | 69 |
| Hartman | 52 |
| Hidden Lake | 36 |
| City | 2025 Pop. ↓ |
|---|---|
| Inverness | 3,082 |
| Idaho Springs | 1,646 |
| Indian Hills | 1,486 |
| Ignacio | 841 |
| Idledale | 348 |
| Iliff | 237 |
| Idalia | 96 |
| City | 2025 Pop. ↓ |
|---|---|
| Johnstown | 20,939 |
| Julesburg | 1,200 |
| Johnson Village | 331 |
| Jansen | 266 |
| Jamestown | 238 |
| Jackson Lake | 168 |
| Joes | 151 |
| City | 2025 Pop. ↓ |
|---|---|
| Ken Caryl | 33,772 |
| Keenesburg | 2,578 |
| Kersey | 1,478 |
| Kremmling | 1,402 |
| Keystone | 974 |
| Kittredge | 950 |
| Kiowa | 744 |
| Kit Carson | 244 |
| Kirk | 94 |
| Kim | 63 |
| City | 2025 Pop. ↓ |
|---|---|
| Lakewood | 155,770 |
| Longmont | 98,258 |
| Loveland | 81,342 |
| Littleton | 43,688 |
| Lafayette | 30,443 |
| Louisville | 19,867 |
| Lone Tree | 13,918 |
| Lochbuie | 8,425 |
| Lamar | 7,409 |
| La Junta | 6,845 |
| Lincoln Park | 4,630 |
| Leadville | 2,631 |
| Las Animas | 2,424 |
| La Salle | 2,263 |
| Laporte | 2,179 |
| Lyons | 2,113 |
| Leadville North | 2,055 |
| Limon | 1,981 |
| Loma | 1,528 |
| Lazy Acres | 1,038 |
| Log Lane Village | 902 |
| La Veta | 891 |
| Loghill Village | 711 |
| La Jara | 708 |
| Lake City | 417 |
| Louviers | 265 |
| Larkspur | 226 |
| Lazear | 178 |
| La Junta Gardens | 127 |
| Lewis | 111 |
| Lakeside | 15 |
| Lynn | 13 |
| Laird | 6 |
| City | 2025 Pop. ↓ |
|---|---|
| Montrose | 21,969 |
| Monument | 13,194 |
| Milliken | 9,498 |
| Mead | 7,546 |
| Meridian | 5,544 |
| Manitou Springs | 4,452 |
| Monte Vista | 3,949 |
| Meridian Village | 3,124 |
| Meeker | 2,366 |
| Mancos | 1,280 |
| Mountain Village | 1,209 |
| Mount Crested Butte | 976 |
| Manassa | 970 |
| Minturn | 921 |
| Mulford | 630 |
| Mountain View | 507 |
| Morrison | 381 |
| Manzanola | 324 |
| Morgan Heights | 295 |
| Merino | 280 |
| Midland | 280 |
| Maysville | 176 |
| Mountain Meadows | 155 |
| Marble | 133 |
| McClave | 116 |
| Marvel | 115 |
| Moffat | 106 |
| Montezuma | 69 |
| Matheson | 35 |
| Maybell | 26 |
| City | 2025 Pop. ↓ |
|---|---|
| Northglenn | 38,249 |
| New Castle | 4,835 |
| Niwot | 4,112 |
| Nederland | 1,502 |
| Nucla | 578 |
| Nunn | 550 |
| Norwood | 526 |
| Naturita | 470 |
| North La Junta | 448 |
| No Name | 306 |
| Nathrop | 185 |
| North Washington | 169 |
| City | 2025 Pop. ↓ |
|---|---|
| Orchard Mesa | 7,257 |
| Orchard City | 3,317 |
| Olathe | 1,926 |
| Ordway | 1,086 |
| Ouray | 934 |
| Oak Creek | 838 |
| Otis | 526 |
| Olney Springs | 285 |
| Ovid | 261 |
| Ophir | 186 |
| Orchard | 108 |
| City | 2025 Pop. ↓ |
|---|---|
| Pueblo | 110,529 |
| Parker | 65,319 |
| Pueblo West | 35,512 |
| Penrose | 3,980 |
| Ponderosa Park | 3,663 |
| Park Center | 2,984 |
| Platteville | 2,858 |
| Palisade | 2,624 |
| Palmer Lake | 2,537 |
| Pagosa Springs | 1,877 |
| Perry Park | 1,728 |
| Poncha Springs | 1,525 |
| Paonia | 1,464 |
| Parachute | 1,344 |
| Pierce | 1,068 |
| Paragon Estates | 839 |
| Pine Valley | 658 |
| Placerville | 434 |
| Phippsburg | 431 |
| Pine Brook Hill | 406 |
| Peetz | 200 |
| Portland | 114 |
| Pritchett | 104 |
| Pitkin | 73 |
| Parshall | 66 |
| Peoria | 52 |
| Piedra | 50 |
| Paoli | 47 |
| Padroni | 41 |
| City | 2025 Pop. ↓ |
|---|---|
| Rifle | 10,651 |
| Roxborough Park | 9,046 |
| Redlands | 8,971 |
| Rocky Ford | 3,786 |
| Rangely | 2,276 |
| Ridgway | 1,291 |
| Rockvale | 546 |
| Red Feather Lakes | 449 |
| Redvale | 377 |
| Rico | 357 |
| Romeo | 312 |
| Red Cliff | 233 |
| Redstone | 220 |
| Rye | 200 |
| Rollinsville | 191 |
| Rock Creek Park | 176 |
| Raymer (New Raymer) | 111 |
| Ramah | 102 |
| City | 2025 Pop. ↓ |
|---|---|
| Security-Widefield | 40,717 |
| Sherrelwood | 19,496 |
| Steamboat Springs | 13,700 |
| Superior | 13,531 |
| Severance | 12,704 |
| Sterling | 12,652 |
| Stonegate | 9,972 |
| Stratmoor | 7,218 |
| Salida | 6,032 |
| Sheridan | 5,777 |
| Shaw Heights | 5,544 |
| Silverthorne | 5,263 |
| Silt | 3,792 |
| Sierra Ridge | 3,666 |
| Stepping Stone | 3,458 |
| Strasburg | 3,324 |
| Snowmass Village | 2,955 |
| Sterling Ranch | 2,375 |
| Springfield | 1,269 |
| Sanford | 900 |
| Salt Creek | 841 |
| Silverton | 768 |
| Silver Cliff | 767 |
| Stratton | 638 |
| San Luis | 635 |
| Simla | 629 |
| Swink | 581 |
| Sugarloaf | 561 |
| Saguache | 529 |
| South Fork | 503 |
| St. Ann Highlands | 493 |
| Sugar City | 238 |
| Segundo | 215 |
| St. Mary's | 214 |
| Sunshine | 208 |
| Silver Plume | 186 |
| Seibert | 178 |
| Sedgwick | 163 |
| Seven Hills | 136 |
| Southern Ute | 126 |
| Stonewall Gap | 119 |
| Smeltertown | 100 |
| Snyder | 99 |
| Somerset | 76 |
| San Acacio | 71 |
| Saddle Ridge | 66 |
| Starkville | 64 |
| Sheridan Lake | 54 |
| Sawpit | 33 |
| City | 2025 Pop. ↓ |
|---|---|
| Thornton | 146,746 |
| Timnath | 12,158 |
| The Pinery | 10,538 |
| Trinidad | 8,134 |
| Twin Lakes | 8,082 |
| Todd Creek | 5,379 |
| Telluride | 2,459 |
| Towaoc | 1,211 |
| Tabernash | 884 |
| Tall Timber | 460 |
| Twin Lakes | 392 |
| Trail Side | 104 |
| Two Buttes | 30 |
| Towner | 13 |
| City | 2025 Pop. ↓ |
|---|---|
| Upper Bear Creek | 886 |
| Upper Witter Gulch | 764 |
| City | 2025 Pop. ↓ |
|---|---|
| Westminster | 113,729 |
| Windsor | 45,095 |
| Wheat Ridge | 31,420 |
| Welby | 16,647 |
| Wellington | 12,696 |
| Woodmoor | 8,889 |
| Woodland Park | 7,840 |
| West Pleasant View | 5,536 |
| Walsenburg | 3,109 |
| Wray | 2,303 |
| Wiggins | 2,038 |
| Watkins | 1,239 |
| Winter Park | 1,222 |
| Williamsburg | 787 |
| Walden | 549 |
| Westcliffe | 541 |
| Walsh | 494 |
| Wiley | 425 |
| Westcreek | 319 |
| Woody Creek | 231 |
| Ward | 123 |
| Weldona | 118 |
| Weston | 39 |