| City | 2026 Pop. ↓ |
|---|---|
| Aurora | 411,293 |
| Arvada | 120,628 |
| Alamosa | 9,953 |
| Applewood | 8,342 |
| Air Force Academy | 6,706 |
| Aspen | 6,338 |
| Avon | 5,778 |
| Ault | 3,030 |
| Acres Green | 2,640 |
| Aristocrat Ranchettes | 2,564 |
| Akron | 1,734 |
| Alamosa East | 1,392 |
| Aetna Estates | 1,256 |
| Allenspark | 895 |
| Aspen Park | 688 |
| Antonito | 611 |
| Altona | 539 |
| Aguilar | 443 |
| Arboles | 423 |
| Alma | 326 |
| Avondale | 211 |
| Atwood | 201 |
| Arriba | 197 |
| Amherst | 103 |
| Alpine | 82 |
| Arapahoe | 53 |
| City | 2026 Pop. ↓ |
|---|---|
| Boulder | 105,995 |
| Broomfield | 80,237 |
| Brighton | 45,062 |
| Berthoud | 15,166 |
| Black Forest | 15,014 |
| Berkley | 10,753 |
| Battlement Mesa | 5,617 |
| Brush | 5,393 |
| Breckenridge | 4,810 |
| Bennett | 4,421 |
| Basalt | 4,008 |
| Buena Vista | 3,259 |
| Burlington | 3,170 |
| Bayfield | 2,951 |
| Byers | 1,953 |
| Bow Mar | 823 |
| Blue River | 819 |
| Beulah Valley | 810 |
| Blende | 592 |
| Brook Forest | 502 |
| Blanca | 351 |
| Boone | 309 |
| Brookside | 243 |
| Blue Valley | 208 |
| Bethune | 187 |
| Blue Sky | 175 |
| Bonanza Mountain Estates | 133 |
| Black Hawk | 120 |
| Briggsdale | 106 |
| Bark Ranch | 95 |
| Brick Center | 76 |
| Branson | 58 |
| Brandon | 23 |
| City | 2026 Pop. ↓ |
|---|---|
| Colorado Springs | 499,474 |
| Centennial | 109,178 |
| Castle Rock | 87,875 |
| Commerce City | 73,973 |
| Columbine | 26,004 |
| Clifton | 19,713 |
| Cimarron Hills | 19,419 |
| Cañon City | 17,318 |
| Castle Pines | 17,136 |
| Cherry Creek | 10,986 |
| Cortez | 9,337 |
| Craig | 8,832 |
| Carbondale | 6,905 |
| Cherry Hills Village | 6,309 |
| Castle Pines Village | 5,466 |
| Cedaredge | 2,504 |
| Coal Creek | 2,347 |
| Center | 1,868 |
| Columbine Valley | 1,773 |
| Colorado City | 1,698 |
| Crested Butte | 1,637 |
| Cripple Creek | 1,107 |
| Cascade-Chipita Park | 1,043 |
| Central | 796 |
| Calhan | 713 |
| Cheyenne Wells | 702 |
| Chacra | 477 |
| Crawford | 412 |
| Comanche Creek | 394 |
| Coal Creek | 370 |
| Collbran | 362 |
| Capulin | 312 |
| Catherine | 307 |
| Copper Mountain | 306 |
| City of Creede | 289 |
| Coaldale | 281 |
| Cattle Creek | 269 |
| Crisman | 268 |
| Cheraw | 227 |
| Crowley | 155 |
| Crestone | 140 |
| Cokedale | 128 |
| Crook | 122 |
| Campo | 94 |
| Colona | 85 |
| Cope | 68 |
| Cotopaxi | 42 |
| Cathedral | 32 |
| Carbonate | 0 |
| City | 2026 Pop. ↓ |
|---|---|
| Denver | 734,718 |
| Dakota Ridge | 34,656 |
| Durango | 20,163 |
| Delta | 10,000 |
| Derby | 8,924 |
| Dacono | 6,946 |
| Dove Valley | 5,329 |
| Deer Trail | 1,883 |
| Dotsero | 1,463 |
| Del Norte | 1,386 |
| Dillon | 987 |
| Dolores | 958 |
| Dove Creek | 676 |
| De Beque | 471 |
| Downieville-Lawson-Dumont | 451 |
| Dinosaur | 249 |
| Divide | 79 |
| City | 2026 Pop. ↓ |
|---|---|
| Fort Collins | 171,391 |
| Fountain | 29,242 |
| Four Square Mile | 26,816 |
| Firestone | 20,762 |
| Frederick | 19,544 |
| Fort Carson | 19,516 |
| Fruita | 14,156 |
| Federal Heights | 13,759 |
| Fort Morgan | 11,975 |
| Fairmount | 11,205 |
| Fort Lupton | 10,918 |
| Fruitvale | 8,073 |
| Florence | 3,902 |
| Frisco | 2,637 |
| Fraser | 1,575 |
| Fowler | 1,176 |
| Floyd Hill | 816 |
| Fairplay | 765 |
| Foxfield | 739 |
| Flagler | 594 |
| Fort Garland | 424 |
| Fleming | 418 |
| Franktown | 407 |
| Florissant | 168 |
| City | 2026 Pop. ↓ |
|---|---|
| Greeley | 116,900 |
| Grand Junction | 72,951 |
| Golden | 20,027 |
| Greenwood Village | 15,111 |
| Gunbarrel | 10,692 |
| Glenwood Springs | 10,462 |
| Gypsum | 9,778 |
| Gunnison | 6,944 |
| Gleneagle | 6,114 |
| Glendale | 4,397 |
| Genesee | 3,876 |
| Granby | 2,415 |
| Georgetown | 1,324 |
| Gilcrest | 1,014 |
| Grand View Estates | 784 |
| Green Mountain Falls | 588 |
| Granada | 447 |
| Grand Lake | 396 |
| Gerrard | 378 |
| Gold Hill | 301 |
| Garden City | 249 |
| Goldfield | 197 |
| Genoa | 154 |
| Grover | 150 |
| Glendale | 87 |
| Gardner | 73 |
| Guffey | 36 |
| City | 2026 Pop. ↓ |
|---|---|
| Highlands Ranch | 102,527 |
| Holly Hills | 2,682 |
| Holyoke | 2,271 |
| Hayden | 1,914 |
| Hudson | 1,602 |
| Howard | 1,260 |
| Hotchkiss | 971 |
| Haxtun | 960 |
| Holly | 842 |
| Hugo | 767 |
| Hot Sulphur Springs | 638 |
| Hillrose | 319 |
| Heeney | 114 |
| Hasty | 82 |
| Hooper | 76 |
| Haswell | 68 |
| Hoehne | 58 |
| Hartman | 57 |
| Hidden Lake | 37 |
| City | 2026 Pop. ↓ |
|---|---|
| Inverness | 3,447 |
| Idaho Springs | 1,650 |
| Indian Hills | 1,329 |
| Ignacio | 845 |
| Idledale | 318 |
| Iliff | 238 |
| Idalia | 116 |
| City | 2026 Pop. ↓ |
|---|---|
| Johnstown | 22,275 |
| Julesburg | 1,187 |
| Jamestown | 241 |
| Jackson Lake | 233 |
| Johnson Village | 188 |
| Joes | 132 |
| Jansen | 90 |
| City | 2026 Pop. ↓ |
|---|---|
| Ken Caryl | 33,631 |
| Keenesburg | 2,451 |
| Kersey | 1,493 |
| Kremmling | 1,398 |
| Keystone | 1,118 |
| Kittredge | 737 |
| Kiowa | 733 |
| Kit Carson | 239 |
| Kim | 66 |
| Kirk | 36 |
| City | 2026 Pop. ↓ |
|---|---|
| Lakewood | 157,161 |
| Longmont | 100,124 |
| Loveland | 83,465 |
| Littleton | 44,519 |
| Lafayette | 30,679 |
| Louisville | 20,614 |
| Lone Tree | 13,982 |
| Lochbuie | 8,792 |
| Lamar | 7,610 |
| La Junta | 6,820 |
| Lincoln Park | 4,492 |
| Leadville | 2,625 |
| Las Animas | 2,393 |
| La Salle | 2,274 |
| Lyons | 2,130 |
| Laporte | 2,048 |
| Limon | 1,970 |
| Leadville North | 1,395 |
| Loma | 1,382 |
| Lazy Acres | 1,087 |
| Log Lane Village | 956 |
| La Veta | 874 |
| Loghill Village | 698 |
| La Jara | 697 |
| Lake City | 401 |
| Lewis | 360 |
| Louviers | 275 |
| Larkspur | 230 |
| Lazear | 202 |
| La Junta Gardens | 115 |
| Lakeside | 14 |
| Lynn | 7 |
| Laird | 6 |
| City | 2026 Pop. ↓ |
|---|---|
| Montrose | 22,277 |
| Monument | 14,897 |
| Milliken | 9,427 |
| Mead | 7,701 |
| Meridian | 5,540 |
| Manitou Springs | 4,472 |
| Monte Vista | 3,919 |
| Meridian Village | 3,407 |
| Meeker | 2,396 |
| Mancos | 1,309 |
| Mountain Village | 1,229 |
| Manassa | 974 |
| Mount Crested Butte | 960 |
| Minturn | 913 |
| Mulford | 621 |
| Mountain View | 512 |
| Morrison | 392 |
| Manzanola | 319 |
| Merino | 275 |
| Morgan Heights | 260 |
| Maysville | 203 |
| Mountain Meadows | 189 |
| Midland | 183 |
| Marble | 135 |
| Marvel | 112 |
| Moffat | 105 |
| McClave | 91 |
| Montezuma | 69 |
| Maybell | 47 |
| Matheson | 25 |
| City | 2026 Pop. ↓ |
|---|---|
| Northglenn | 38,410 |
| New Castle | 4,885 |
| Niwot | 3,719 |
| Nederland | 1,495 |
| Nucla | 590 |
| Nunn | 548 |
| Norwood | 518 |
| North La Junta | 512 |
| Naturita | 480 |
| No Name | 277 |
| North Washington | 271 |
| Nathrop | 137 |
| City | 2026 Pop. ↓ |
|---|---|
| Orchard Mesa | 6,542 |
| Orchard City | 3,340 |
| Olathe | 1,950 |
| Ordway | 1,073 |
| Ouray | 919 |
| Oak Creek | 839 |
| Otis | 504 |
| Olney Springs | 287 |
| Ovid | 249 |
| Ophir | 181 |
| Orchard | 107 |
| City | 2026 Pop. ↓ |
|---|---|
| Pueblo | 110,794 |
| Parker | 68,783 |
| Pueblo West | 36,228 |
| Penrose | 4,069 |
| Ponderosa Park | 3,631 |
| Park Center | 3,131 |
| Platteville | 2,876 |
| Palisade | 2,619 |
| Palmer Lake | 2,533 |
| Pagosa Springs | 1,880 |
| Perry Park | 1,837 |
| Poncha Springs | 1,568 |
| Paonia | 1,470 |
| Parachute | 1,348 |
| Pierce | 1,081 |
| Paragon Estates | 730 |
| Phippsburg | 491 |
| Pine Valley | 481 |
| Placerville | 414 |
| Pine Brook Hill | 385 |
| Peetz | 199 |
| Portland | 113 |
| Pritchett | 105 |
| Peyton | 90 |
| Pitkin | 72 |
| Piedra | 62 |
| Peoria | 50 |
| Paoli | 49 |
| Parshall | 42 |
| Padroni | 28 |
| City | 2026 Pop. ↓ |
|---|---|
| Rifle | 10,773 |
| Roxborough Park | 9,426 |
| Redlands | 8,791 |
| Rocky Ford | 3,739 |
| Rangely | 2,283 |
| Ridgway | 1,331 |
| Rockvale | 543 |
| Redvale | 444 |
| Rico | 357 |
| Red Feather Lakes | 348 |
| Rollinsville | 320 |
| Romeo | 315 |
| Red Cliff | 231 |
| Rye | 201 |
| Redstone | 163 |
| Rock Creek Park | 155 |
| Raymer (New Raymer) | 111 |
| Ramah | 103 |
| City | 2026 Pop. ↓ |
|---|---|
| Security-Widefield | 39,992 |
| Sherrelwood | 19,617 |
| Superior | 13,927 |
| Steamboat Springs | 13,819 |
| Severance | 13,330 |
| Sterling | 12,964 |
| Stonegate | 9,211 |
| Stratmoor | 6,280 |
| Salida | 6,154 |
| Sheridan | 5,846 |
| Silverthorne | 5,604 |
| Shaw Heights | 5,354 |
| Sierra Ridge | 4,017 |
| Silt | 3,813 |
| Stepping Stone | 3,790 |
| Strasburg | 3,434 |
| Sterling Ranch | 3,114 |
| Snowmass Village | 2,877 |
| Springfield | 1,286 |
| Salt Creek | 913 |
| Sanford | 909 |
| Silverton | 782 |
| Silver Cliff | 746 |
| Stratton | 649 |
| San Luis | 642 |
| Swink | 578 |
| Simla | 571 |
| St. Ann Highlands | 528 |
| Saguache | 524 |
| South Fork | 500 |
| Sugarloaf | 484 |
| Sunshine | 242 |
| Sugar City | 241 |
| Segundo | 183 |
| Silver Plume | 182 |
| Seibert | 179 |
| Sedgwick | 159 |
| Smeltertown | 129 |
| Southern Ute | 114 |
| St. Mary's | 95 |
| Stonewall Gap | 75 |
| Saddle Ridge | 71 |
| Starkville | 65 |
| Sheridan Lake | 54 |
| Sawpit | 40 |
| San Acacio | 28 |
| Seven Hills | 26 |
| Sedalia | 13 |
| Snyder | 3 |
| City | 2026 Pop. ↓ |
|---|---|
| Thornton | 148,938 |
| Timnath | 12,899 |
| The Pinery | 12,022 |
| Twin Lakes | 8,782 |
| Trinidad | 8,105 |
| Todd Creek | 5,369 |
| Telluride | 2,417 |
| Towaoc | 1,051 |
| Tabernash | 885 |
| Twin Lakes | 581 |
| Tall Timber | 415 |
| Trail Side | 105 |
| Two Buttes | 31 |
| Towner | 28 |
| City | 2026 Pop. ↓ |
|---|---|
| Upper Bear Creek | 962 |
| Upper Witter Gulch | 724 |
| City | 2026 Pop. ↓ |
|---|---|
| Westminster | 114,626 |
| Windsor | 45,980 |
| Wheat Ridge | 31,807 |
| Welby | 16,552 |
| Wellington | 12,578 |
| Woodmoor | 8,837 |
| Woodland Park | 8,106 |
| West Pleasant View | 5,540 |
| Walsenburg | 3,029 |
| Wray | 2,383 |
| Wiggins | 2,088 |
| Watkins | 1,338 |
| Winter Park | 1,250 |
| Williamsburg | 807 |
| Walden | 531 |
| Westcliffe | 526 |
| Walsh | 505 |
| Wiley | 435 |
| Westcreek | 262 |
| Ward | 124 |
| Weldona | 97 |
| Woody Creek | 91 |
| Weston | 52 |