| Rank | City | 2023 Population (Est.) | Growth Rate (Annual) |
|---|---|---|---|
| 1 | Denver | 713,453 | -0.3% |
| 2 | Colorado Springs | 486,304 | 0.6% |
| 3 | Aurora | 393,794 | 0.9% |
| 4 | Fort Collins | 170,114 | 0.3% |
| 5 | Lakewood | 156,001 | -0.0% |
| 6 | Thornton | 143,247 | 0.4% |
| 7 | Arvada | 121,430 | -1.2% |
| 8 | Westminster | 114,771 | -0.7% |
| 9 | Pueblo | 111,418 | -0.3% |
| 10 | Greeley | 109,245 | -0.1% |
| 11 | Centennial | 105,944 | -1.0% |
| 12 | Boulder | 105,620 | 0.2% |
| 13 | Longmont | 98,809 | -0.8% |
| 14 | Castle Rock | 80,149 | 4.3% |
| 15 | Loveland | 77,858 | 0.8% |
| 16 | Broomfield | 76,195 | 1.1% |
| 17 | Grand Junction | 68,016 | 1.7% |
| 18 | Commerce City | 66,115 | 2.6% |
| 19 | Parker | 61,218 | 2.0% |
| 20 | Littleton | 44,784 | -0.9% |
| 21 | Brighton | 41,881 | 2.1% |
| 22 | Windsor | 38,512 | 7.6% |
| 23 | Northglenn | 38,089 | 0.1% |
| 24 | Englewood | 33,662 | 0.1% |
| 25 | Erie | 33,139 | 4.1% |
| 26 | Wheat Ridge | 31,852 | -0.8% |
| 27 | Lafayette | 30,750 | -0.1% |
| 28 | Fountain | 28,924 | -1.7% |
| 29 | Evans | 22,623 | 0.8% |
| 30 | Montrose | 21,025 | 1.6% |
| 31 | Golden | 20,584 | 1.2% |
| 32 | Louisville | 20,427 | -2.2% |
| 33 | Durango | 19,514 | 1.2% |
| 34 | Johnstown | 18,634 | 3.6% |
| 35 | Firestone | 18,306 | 4.8% |
| 36 | Cañon City | 17,235 | 0.3% |
| 37 | Frederick | 17,164 | 8.1% |
| 38 | Greenwood Village | 15,375 | -0.9% |
| 39 | Lone Tree | 14,178 | -0.1% |
| 40 | Federal Heights | 14,001 | -1.4% |
| 41 | Fruita | 13,759 | 1.4% |
| 42 | Castle Pines | 13,486 | 9.6% |
| 43 | Steamboat Springs | 13,364 | 0.7% |
| 44 | Sterling | 13,075 | -2.5% |
| 45 | Superior | 13,003 | -1.1% |
| 46 | Berthoud | 12,714 | 9.2% |
| 47 | Wellington | 11,975 | 3.4% |
| 48 | Monument | 11,789 | 6.3% |
| 49 | Fort Morgan | 11,469 | -0.3% |
| 50 | Severance | 10,597 | 15.3% |
| 51 | Rifle | 10,546 | 0.6% |
| 52 | Glenwood Springs | 10,265 | 1.3% |
| 53 | Alamosa | 9,847 | 0.5% |
| 54 | Delta | 9,446 | 2.0% |
| 55 | Timnath | 9,322 | 17.3% |
| 56 | Milliken | 9,078 | 3.6% |
| 57 | Cortez | 8,997 | 1.5% |
| 58 | Craig | 8,989 | -0.2% |
| 59 | Gypsum | 8,937 | 5.1% |
| 60 | Fort Lupton | 8,826 | 5.1% |
| 61 | Trinidad | 8,297 | -0.1% |
| 62 | Lochbuie | 8,187 | – |
| 63 | Woodland Park | 7,953 | 0.1% |
| 64 | Lamar | 7,601 | -0.4% |
| 65 | Eagle | 7,430 | -0.2% |
| 66 | La Junta | 7,148 | -1.3% |
| 67 | Gunnison | 6,836 | 2.7% |
| 68 | Aspen | 6,731 | -1.9% |
| 69 | Carbondale | 6,635 | 1.4% |
| 70 | Dacono | 6,492 | 1.2% |
| 71 | Cherry Hills Village | 6,314 | -0.9% |
| 72 | Mead | 6,252 | 14.4% |
| 73 | Sheridan | 5,974 | -1.1% |
| 74 | Eaton | 5,915 | 0.7% |
| 75 | Avon | 5,913 | -1.9% |
| 76 | Salida | 5,858 | 1.3% |
| 77 | Estes Park | 5,858 | -0.5% |
| 78 | Brush | 5,269 | -0.6% |
| 79 | Breckenridge | 4,929 | -1.7% |
| 80 | Edgewater | 4,897 | -1.1% |
| 81 | New Castle | 4,846 | -0.9% |
| 82 | Silverthorne | 4,781 | 3.2% |
| 83 | Manitou Springs | 4,710 | -1.8% |
| 84 | Vail | 4,631 | -1.9% |
| 85 | Glendale | 4,499 | -1.1% |
| 86 | Monte Vista | 4,151 | -1.1% |
| 87 | Basalt | 4,058 | 1.0% |
| 88 | Florence | 3,870 | 0.5% |
| 89 | Rocky Ford | 3,806 | -0.8% |
| 90 | Silt | 3,609 | 0.8% |
| 91 | Bennett | 3,525 | 10.2% |
| 92 | Yuma | 3,425 | -0.6% |
| 93 | Orchard City | 3,204 | 0.8% |
| 94 | Burlington | 3,123 | -0.5% |
| 95 | Walsenburg | 3,117 | 1.3% |
| 96 | Buena Vista | 3,047 | 2.9% |
| 97 | Snowmass Village | 3,003 | -1.5% |
| 98 | Platteville | 2,941 | -0.2% |
| 99 | Bayfield | 2,887 | 0.7% |
| 100 | Frisco | 2,814 | -2.3% |
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