147 cities
| City | Rank | Annual Change ↓ | 2026 Pop. | 2020 Pop. |
|---|---|---|---|---|
| Keenesburg | 1 | 8.84% | 2,451 | 1,259 |
| Elizabeth | 2 | 8.7% | 3,300 | 1,719 |
| Timnath | 3 | 8.64% | 12,899 | 6,745 |
| Deer Trail | 4 | 7.42% | 1,883 | 1,106 |
| Severance | 5 | 7.14% | 13,330 | 8,001 |
| Mead | 6 | 6.69% | 7,701 | 4,802 |
| Ault | 7 | 6.5% | 3,030 | 1,919 |
| Castle Pines | 8 | 6.11% | 17,136 | 11,213 |
| Bennett | 9 | 6.07% | 4,421 | 2,906 |
| Wiggins | 10 | 5.45% | 2,088 | 1,439 |
| Berthoud | 11 | 5.27% | 15,166 | 10,611 |
| Monument | 12 | 5.26% | 14,897 | 10,429 |
| Erie | 13 | 5.03% | 42,684 | 30,413 |
| Windsor | 14 | 4.84% | 45,980 | 33,241 |
| Fort Lupton | 15 | 4.65% | 10,918 | 8,007 |
| Frederick | 16 | 4.29% | 19,544 | 14,722 |
| Johnstown | 17 | 3.81% | 22,275 | 17,367 |
| Silverthorne | 18 | 3.55% | 5,604 | 4,451 |
| Firestone | 19 | 3.4% | 20,762 | 16,664 |
| Gypsum | 20 | 2.95% | 9,778 | 8,098 |
| Castle Rock | 21 | 2.72% | 87,875 | 73,888 |
| Georgetown | 22 | 2.64% | 1,324 | 1,123 |
| Columbine Valley | 23 | 2.6% | 1,773 | 1,503 |
| Commerce City | 24 | 2.58% | 73,973 | 62,788 |
| Parker | 25 | 2.47% | 68,783 | 58,853 |
| Pagosa Springs | 26 | 2.4% | 1,880 | 1,619 |
| Winter Park | 27 | 2.38% | 1,250 | 1,076 |
| Granby | 28 | 2.33% | 2,415 | 2,084 |
| Buena Vista | 29 | 2.07% | 3,259 | 2,863 |
| Fraser | 30 | 1.94% | 1,575 | 1,394 |
| Wellington | 31 | 1.94% | 12,578 | 11,144 |
| Ridgway | 32 | 1.91% | 1,331 | 1,180 |
| Brighton | 33 | 1.8% | 45,062 | 40,294 |
| Milliken | 34 | 1.76% | 9,427 | 8,451 |
| Grand Junction | 35 | 1.67% | 72,951 | 65,759 |
| Delta | 36 | 1.58% | 10,000 | 9,064 |
| Mancos | 37 | 1.47% | 1,309 | 1,198 |
| Cedaredge | 38 | 1.46% | 2,504 | 2,287 |
| Dacono | 39 | 1.45% | 6,946 | 6,351 |
| Montrose | 40 | 1.44% | 22,277 | 20,384 |
| Loveland | 41 | 1.44% | 83,465 | 76,375 |
| Salida | 42 | 1.22% | 6,154 | 5,712 |
| Broomfield | 43 | 1.21% | 80,237 | 74,494 |
| Silt | 44 | 1.14% | 3,813 | 3,554 |
| Englewood | 45 | 1.13% | 36,046 | 33,622 |
| Lochbuie | 46 | 1.12% | 8,792 | 8,213 |
| Greeley | 47 | 1.1% | 116,900 | 109,289 |
| Carbondale | 48 | 1.08% | 6,905 | 6,463 |
| Cortez | 49 | 1.01% | 9,337 | 8,778 |
| Aurora | 50 | 1% | 411,293 | 386,804 |
| Superior | 51 | 0.99% | 13,927 | 13,107 |
| Orchard City | 52 | 0.97% | 3,340 | 3,148 |
| Gunnison | 53 | 0.9% | 6,944 | 6,574 |
| Durango | 54 | 0.88% | 20,163 | 19,107 |
| Fruita | 55 | 0.87% | 14,156 | 13,424 |
| Thornton | 56 | 0.76% | 148,938 | 142,191 |
| Glenwood Springs | 57 | 0.73% | 10,462 | 10,008 |
| Steamboat Springs | 58 | 0.73% | 13,819 | 13,222 |
| Las Animas | 59 | 0.67% | 2,393 | 2,297 |
| Colorado Springs | 60 | 0.6% | 499,474 | 481,713 |
| Fort Morgan | 61 | 0.59% | 11,975 | 11,554 |
| Rifle | 62 | 0.51% | 10,773 | 10,442 |
| Bayfield | 63 | 0.48% | 2,951 | 2,866 |
| Wray | 64 | 0.42% | 2,383 | 2,322 |
| Woodland Park | 65 | 0.4% | 8,106 | 7,917 |
| Denver | 66 | 0.39% | 734,718 | 717,620 |
| Palisade | 67 | 0.38% | 2,619 | 2,562 |
| Cañon City | 68 | 0.37% | 17,318 | 16,942 |
| Ordway | 69 | 0.28% | 1,073 | 1,054 |
| Nederland | 70 | 0.27% | 1,495 | 1,470 |
| Florence | 71 | 0.26% | 3,902 | 3,844 |
| Alamosa | 72 | 0.24% | 9,953 | 9,812 |
| Brush | 73 | 0.22% | 5,393 | 5,323 |
| Paonia | 74 | 0.2% | 1,470 | 1,452 |
| Northglenn | 75 | 0.16% | 38,410 | 38,040 |
| Longmont | 76 | 0.15% | 100,124 | 99,206 |
| Lafayette | 77 | 0.15% | 30,679 | 30,403 |
| Centennial | 78 | 0.15% | 109,178 | 108,202 |
| Fort Collins | 79 | 0.14% | 171,391 | 169,990 |
| Meeker | 80 | 0.13% | 2,396 | 2,377 |
| Evans | 81 | 0.12% | 22,445 | 22,292 |
| Basalt | 82 | 0.1% | 4,008 | 3,987 |
| Lakewood | 83 | 0.09% | 157,161 | 156,281 |
| Yuma | 84 | 0.06% | 3,476 | 3,464 |
| Leadville | 85 | 0.04% | 2,625 | 2,621 |
| Burlington | 86 | 0% | 3,170 | 3,172 |
| Eaton | 87 | -0.05% | 5,833 | 5,851 |
| New Castle | 88 | -0.08% | 4,885 | 4,911 |
| Gilcrest | 89 | -0.1% | 1,014 | 1,022 |
| Walsenburg | 90 | -0.1% | 3,029 | 3,047 |
| Rangely | 91 | -0.13% | 2,283 | 2,300 |
| Hayden | 92 | -0.16% | 1,914 | 1,931 |
| Pueblo | 93 | -0.17% | 110,794 | 111,910 |
| Crested Butte | 94 | -0.18% | 1,637 | 1,655 |
| Lamar | 95 | -0.2% | 7,610 | 7,703 |
| Kersey | 96 | -0.2% | 1,493 | 1,510 |
| Pierce | 97 | -0.28% | 1,081 | 1,099 |
| Lone Tree | 98 | -0.28% | 13,982 | 14,218 |
| Akron | 99 | -0.29% | 1,734 | 1,767 |
| Westminster | 100 | -0.29% | 114,626 | 116,653 |
| Wheat Ridge | 101 | -0.3% | 31,807 | 32,383 |
| Golden | 102 | -0.31% | 20,027 | 20,399 |
| Cherry Hills Village | 103 | -0.32% | 6,309 | 6,428 |
| Fountain | 104 | -0.36% | 29,242 | 29,887 |
| Boulder | 105 | -0.38% | 105,995 | 108,418 |
| Craig | 106 | -0.39% | 8,832 | 9,045 |
| Littleton | 107 | -0.4% | 44,519 | 45,598 |
| Mountain Village | 108 | -0.41% | 1,229 | 1,261 |
| Hudson | 109 | -0.44% | 1,602 | 1,647 |
| Springfield | 110 | -0.46% | 1,286 | 1,322 |
| Estes Park | 111 | -0.47% | 5,741 | 5,902 |
| Louisville | 112 | -0.47% | 20,614 | 21,205 |
| Trinidad | 113 | -0.48% | 8,105 | 8,339 |
| Platteville | 114 | -0.48% | 2,876 | 2,960 |
| Olathe | 115 | -0.51% | 1,950 | 2,010 |
| Arvada | 116 | -0.51% | 120,628 | 124,363 |
| Parachute | 117 | -0.52% | 1,348 | 1,390 |
| Holyoke | 118 | -0.53% | 2,271 | 2,346 |
| Center | 119 | -0.53% | 1,868 | 1,930 |
| Limon | 120 | -0.56% | 1,970 | 2,035 |
| Rocky Ford | 121 | -0.56% | 3,739 | 3,865 |
| Lyons | 122 | -0.56% | 2,130 | 2,205 |
| Eagle | 123 | -0.56% | 7,267 | 7,512 |
| Sterling | 124 | -0.58% | 12,964 | 13,414 |
| Greenwood Village | 125 | -0.58% | 15,111 | 15,642 |
| La Salle | 126 | -0.61% | 2,274 | 2,360 |
| Cripple Creek | 127 | -0.63% | 1,107 | 1,152 |
| Edgewater | 128 | -0.66% | 4,816 | 5,007 |
| Sheridan | 129 | -0.73% | 5,846 | 6,104 |
| Federal Heights | 130 | -0.76% | 13,759 | 14,395 |
| Glendale | 131 | -0.77% | 4,397 | 4,600 |
| Palmer Lake | 132 | -0.82% | 2,533 | 2,659 |
| Snowmass Village | 133 | -0.83% | 2,877 | 3,020 |
| Breckenridge | 134 | -0.85% | 4,810 | 5,056 |
| Del Norte | 135 | -0.86% | 1,386 | 1,458 |
| Avon | 136 | -1.03% | 5,778 | 6,137 |
| Fowler | 137 | -1.09% | 1,176 | 1,257 |
| La Junta | 138 | -1.2% | 6,820 | 7,317 |
| Kremmling | 139 | -1.34% | 1,398 | 1,512 |
| Monte Vista | 140 | -1.38% | 3,919 | 4,252 |
| Telluride | 141 | -1.39% | 2,417 | 2,623 |
| Idaho Springs | 142 | -1.43% | 1,650 | 1,797 |
| Manitou Springs | 143 | -1.48% | 4,472 | 4,877 |
| Julesburg | 144 | -1.49% | 1,187 | 1,295 |
| Aspen | 145 | -1.69% | 6,338 | 6,992 |
| Frisco | 146 | -1.75% | 2,637 | 2,922 |
| Vail | 147 | -2.03% | 4,288 | 4,822 |
Colorado's cities with over 1,000 residents show varied growth patterns from 2020 to 2025. Keenesburg leads with 8.84% annualized growth, followed by Elizabeth (8.7%) and Timnath (8.64%). The largest population centers are Denver (734,718), Colorado Springs (499,474), and Aurora (411,293). Of the 147 cities over 1,000 population, 86 are growing while 61 experienced population decline. Overall, cities averaged 0.97% annualized growth, with total urban population growing by 5.09% annually.