| Rank | City | 2010 Population | Growth Rate (Annual) |
|---|---|---|---|
| 1 | Denver | 600,158 | 0.8% |
| 2 | Colorado Springs | 416,427 | 1.4% |
| 3 | Aurora | 325,078 | 1.6% |
| 4 | Fort Collins | 143,986 | 1.8% |
| 5 | Lakewood | 142,980 | -0.1% |
| 6 | Thornton | 118,772 | 3.6% |
| 7 | Pueblo | 106,595 | 0.4% |
| 8 | Arvada | 106,433 | 0.4% |
| 9 | Westminster | 106,114 | 0.5% |
| 10 | Centennial | 100,377 | -0.2% |
| 11 | Boulder | 97,385 | 0.3% |
| 12 | Greeley | 92,889 | 1.7% |
| 13 | Longmont | 86,270 | 1.8% |
| 14 | Loveland | 66,859 | 2.6% |
| 15 | Grand Junction | 58,566 | 2.5% |
| 16 | Broomfield | 55,889 | 3.5% |
| 17 | Castle Rock | 48,231 | 8.7% |
| 18 | Commerce City | 45,913 | 8.1% |
| 19 | Parker | 45,297 | 6.2% |
| 20 | Littleton | 41,737 | 0.3% |
| 21 | Northglenn | 35,789 | 1.0% |
| 22 | Brighton | 33,352 | 4.6% |
| 23 | Englewood | 30,255 | -0.5% |
| 24 | Wheat Ridge | 30,166 | -0.9% |
| 25 | Fountain | 25,846 | 5.2% |
| 26 | Lafayette | 24,453 | 0.5% |
| 27 | Montrose | 19,132 | 3.9% |
| 28 | Golden | 18,867 | 0.9% |
| 29 | Windsor | 18,644 | 6.1% |
| 30 | Evans | 18,537 | 5.9% |
| 31 | Louisville | 18,376 | -0.4% |
| 32 | Erie | 18,135 | 10.7% |
| 33 | Durango | 16,887 | 1.5% |
| 34 | Cañon City | 16,400 | – |
| 35 | Sterling | 14,777 | 1.4% |
| 36 | Greenwood Village | 13,925 | 1.8% |
| 37 | Fruita | 12,646 | 6.5% |
| 38 | Superior | 12,483 | 3.0% |
| 39 | Steamboat Springs | 12,088 | 1.8% |
| 40 | Federal Heights | 11,467 | -0.5% |
| 41 | Fort Morgan | 11,315 | 0.3% |
| 42 | Castle Pines | 10,396 | – |
| 43 | Lone Tree | 10,218 | 4.0% |
| 44 | Firestone | 10,147 | 16.2% |
| 45 | Johnstown | 9,887 | 8.3% |
| 46 | Glenwood Springs | 9,614 | 2.0% |
| 47 | Craig | 9,464 | 0.3% |
| 48 | Rifle | 9,172 | 2.9% |
| 49 | Trinidad | 9,096 | -0.0% |
| 50 | Delta | 8,915 | 1.3% |
| 51 | Alamosa | 8,780 | 0.4% |
| 52 | Frederick | 8,679 | 11.9% |
| 53 | Cortez | 8,482 | 0.6% |
| 54 | Lamar | 7,804 | -1.2% |
| 55 | Fort Lupton | 7,377 | 0.2% |
| 56 | Woodland Park | 7,200 | 0.6% |
| 57 | La Junta | 7,077 | -0.7% |
| 58 | Aspen | 6,658 | 1.1% |
| 59 | Eagle | 6,508 | 7.8% |
| 60 | Gypsum | 6,477 | 5.2% |
| 61 | Avon | 6,447 | 1.3% |
| 62 | Carbondale | 6,427 | 2.0% |
| 63 | Wellington | 6,289 | 8.8% |
| 64 | Cherry Hills Village | 5,987 | -0.0% |
| 65 | Estes Park | 5,858 | 0.5% |
| 66 | Gunnison | 5,854 | 0.8% |
| 67 | Sheridan | 5,664 | 0.2% |
| 68 | Milliken | 5,610 | 6.3% |
| 69 | Monument | 5,530 | 9.9% |
| 70 | Brush | 5,463 | 0.6% |
| 71 | Vail | 5,305 | 1.4% |
| 72 | Salida | 5,236 | -0.7% |
| 73 | Edgewater | 5,170 | -0.5% |
| 74 | Berthoud | 5,105 | 0.1% |
| 75 | Manitou Springs | 4,992 | -0.0% |
| 76 | Lochbuie | 4,726 | 8.1% |
| 77 | Breckenridge | 4,540 | 4.8% |
| 78 | New Castle | 4,518 | 8.2% |
| 79 | Monte Vista | 4,444 | -0.3% |
| 80 | Eaton | 4,365 | 4.6% |
| 81 | Burlington | 4,254 | 1.5% |
| 82 | Glendale | 4,184 | -0.8% |
| 83 | Dacono | 4,152 | 3.0% |
| 84 | Rocky Ford | 3,957 | -0.8% |
| 85 | Silverthorne | 3,887 | 1.9% |
| 86 | Florence | 3,881 | 0.6% |
| 87 | Basalt | 3,857 | 3.4% |
| 88 | Yuma | 3,524 | 0.7% |
| 89 | Mead | 3,405 | 5.4% |
| 90 | Severance | 3,165 | 16.8% |
| 91 | Orchard City | 3,119 | 0.8% |
| 92 | Walsenburg | 3,068 | -3.0% |
| 93 | Silt | 2,930 | 5.1% |
| 94 | Snowmass Village | 2,826 | 4.6% |
| 95 | Palisade | 2,692 | 0.4% |
| 96 | Frisco | 2,683 | 1.0% |
| 97 | Buena Vista | 2,617 | 1.8% |
| 98 | Leadville | 2,602 | -0.8% |
| 99 | Platteville | 2,485 | 0.4% |
| 100 | Meeker | 2,475 | 1.0% |
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