| Rank | City | 2007 Population (Est.) | Growth Rate (Annual) |
|---|---|---|---|
| 1 | Denver | 568,692 | 0.4% |
| 2 | Colorado Springs | 398,778 | 1.6% |
| 3 | Aurora | 301,228 | 1.4% |
| 4 | Lakewood | 139,386 | -0.6% |
| 5 | Fort Collins | 131,487 | 1.5% |
| 6 | Thornton | 107,444 | 4.3% |
| 7 | Westminster | 104,921 | 0.6% |
| 8 | Arvada | 104,311 | 0.3% |
| 9 | Pueblo | 102,896 | 0.1% |
| 10 | Boulder | 98,305 | 0.6% |
| 11 | Centennial | 97,376 | -0.8% |
| 12 | Greeley | 88,159 | 2.0% |
| 13 | Longmont | 84,179 | 2.6% |
| 14 | Loveland | 61,829 | 3.0% |
| 15 | Grand Junction | 52,660 | 2.4% |
| 16 | Broomfield | 51,454 | 4.5% |
| 17 | Parker | 40,802 | 8.7% |
| 18 | Littleton | 40,070 | -0.2% |
| 19 | Castle Rock | 39,077 | 11.0% |
| 20 | Commerce City | 38,251 | 10.4% |
| 21 | Northglenn | 33,324 | 0.4% |
| 22 | Englewood | 32,156 | 0.1% |
| 23 | Wheat Ridge | 30,834 | -1.1% |
| 24 | Brighton | 29,472 | 5.6% |
| 25 | Lafayette | 24,633 | 0.9% |
| 26 | Fountain | 21,907 | 5.9% |
| 27 | Louisville | 18,723 | -0.3% |
| 28 | Evans | 17,740 | 9.1% |
| 29 | Golden | 17,264 | 0.1% |
| 30 | Montrose | 16,256 | 3.8% |
| 31 | Durango | 15,888 | 1.5% |
| 32 | Ca�City | 15,740 | 0.2% |
| 33 | Windsor | 15,273 | 6.7% |
| 34 | Erie | 14,310 | 13.9% |
| 35 | Greenwood Village | 13,384 | 2.3% |
| 36 | Sterling | 12,796 | -0.0% |
| 37 | Federal Heights | 11,800 | -0.4% |
| 38 | Steamboat Springs | 11,349 | 2.0% |
| 39 | Fruita | 10,533 | 7.7% |
| 40 | Fort Morgan | 10,503 | -0.8% |
| 41 | Superior | 10,423 | 2.0% |
| 42 | Craig | 8,984 | -0.3% |
| 43 | Trinidad | 8,936 | -0.3% |
| 44 | Lone Tree | 8,880 | 4.2% |
| 45 | Alamosa | 8,696 | 0.5% |
| 46 | Glenwood Springs | 8,632 | 1.5% |
| 47 | Delta | 8,419 | 1.2% |
| 48 | Cortez | 8,353 | 0.7% |
| 49 | Rifle | 8,329 | 3.2% |
| 50 | Johnstown | 8,214 | 10.7% |
| 51 | Lamar | 8,114 | -1.4% |
| 52 | Fort Lupton | 7,413 | 0.4% |
| 53 | Frederick | 7,295 | 17.3% |
| 54 | La Junta | 7,064 | -1.1% |
| 55 | Firestone | 7,014 | 20.7% |
| 56 | Woodland Park | 6,651 | -0.3% |
| 57 | Avon | 6,412 | 2.0% |
| 58 | Cherry Hills Village | 6,129 | 0.4% |
| 59 | Estes Park | 6,088 | 1.5% |
| 60 | Carbondale | 5,921 | 1.9% |
| 61 | Aspen | 5,791 | -0.5% |
| 62 | Milliken | 5,730 | 11.1% |
| 63 | Salida | 5,383 | -0.6% |
| 64 | Sheridan | 5,377 | -0.5% |
| 65 | Gypsum | 5,337 | 5.4% |
| 66 | Gunnison | 5,336 | -0.2% |
| 67 | Brush | 5,312 | 0.6% |
| 68 | Berthoud | 5,238 | 0.7% |
| 69 | Wellington | 5,159 | 11.3% |
| 70 | Manitou Springs | 5,138 | 0.5% |
| 71 | Edgewater | 5,138 | -1.0% |
| 72 | Eagle | 4,920 | 8.2% |
| 73 | Glendale | 4,715 | 0.6% |
| 74 | Vail | 4,581 | -0.2% |
| 75 | Monument | 4,347 | 12.5% |
| 76 | Monte Vista | 4,104 | -1.8% |
| 77 | Eaton | 4,042 | 6.3% |
| 78 | Rocky Ford | 4,009 | -1.0% |
| 79 | Lochbuie | 3,944 | 10.5% |
| 80 | Burlington | 3,922 | 1.1% |
| 81 | Walsenburg | 3,806 | -1.4% |
| 82 | Silverthorne | 3,784 | 2.6% |
| 83 | Dacono | 3,775 | 3.4% |
| 84 | Castle Pines North | 3,705 | 0.4% |
| 85 | Florence | 3,575 | -0.4% |
| 86 | Breckenridge | 3,255 | 2.2% |
| 87 | Yuma | 3,236 | -0.2% |
| 88 | New Castle | 3,232 | 7.8% |
| 89 | Basalt | 3,099 | 2.0% |
| 90 | Orchard City | 3,090 | 1.1% |
| 91 | Mead | 2,764 | 5.5% |
| 92 | Palisade | 2,754 | 1.1% |
| 93 | Leadville | 2,649 | -1.0% |
| 94 | Platteville | 2,596 | 1.4% |
| 95 | Bennett | 2,552 | 3.6% |
| 96 | Frisco | 2,541 | 0.7% |
| 97 | Severance | 2,467 | 24.2% |
| 98 | Las Animas | 2,418 | -2.1% |
| 99 | Center | 2,389 | -0.0% |
| 100 | Silt | 2,370 | 4.9% |
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