| Rank | City | 2008 Population (Est.) | Growth Rate (Annual) |
|---|---|---|---|
| 1 | Denver | 578,789 | 0.6% |
| 2 | Colorado Springs | 399,751 | 1.4% |
| 3 | Aurora | 309,007 | 1.5% |
| 4 | Lakewood | 140,048 | -0.4% |
| 5 | Fort Collins | 133,373 | 1.5% |
| 6 | Thornton | 110,653 | 4.1% |
| 7 | Arvada | 106,133 | 0.5% |
| 8 | Westminster | 105,945 | 0.6% |
| 9 | Pueblo | 103,703 | 0.2% |
| 10 | Boulder | 98,521 | 0.6% |
| 11 | Centennial | 98,372 | -0.6% |
| 12 | Greeley | 89,603 | 1.9% |
| 13 | Longmont | 85,927 | 2.5% |
| 14 | Loveland | 63,885 | 3.0% |
| 15 | Grand Junction | 54,867 | 2.7% |
| 16 | Broomfield | 53,664 | 4.5% |
| 17 | Parker | 42,678 | 8.1% |
| 18 | Castle Rock | 42,337 | 10.6% |
| 19 | Commerce City | 40,646 | 9.8% |
| 20 | Littleton | 40,387 | -0.0% |
| 21 | Northglenn | 33,529 | 0.5% |
| 22 | Englewood | 32,365 | 0.2% |
| 23 | Wheat Ridge | 30,778 | -0.9% |
| 24 | Brighton | 30,626 | 5.3% |
| 25 | Lafayette | 25,160 | 1.1% |
| 26 | Fountain | 23,166 | 5.9% |
| 27 | Louisville | 18,989 | -0.0% |
| 28 | Evans | 18,064 | 8.1% |
| 29 | Golden | 17,254 | 0.0% |
| 30 | Montrose | 17,192 | 4.1% |
| 31 | Windsor | 16,145 | 6.5% |
| 32 | Durango | 16,019 | 1.4% |
| 33 | Erie | 15,822 | 13.4% |
| 34 | Ca�City | 15,808 | 0.2% |
| 35 | Greenwood Village | 13,870 | 2.5% |
| 36 | Sterling | 12,832 | 0.0% |
| 37 | Federal Heights | 11,841 | -0.3% |
| 38 | Steamboat Springs | 11,701 | 2.2% |
| 39 | Fruita | 11,177 | 7.5% |
| 40 | Superior | 10,564 | 1.9% |
| 41 | Fort Morgan | 10,444 | -0.8% |
| 42 | Lone Tree | 9,165 | 4.1% |
| 43 | Craig | 9,090 | -0.1% |
| 44 | Trinidad | 8,977 | -0.2% |
| 45 | Glenwood Springs | 8,838 | 1.7% |
| 46 | Johnstown | 8,741 | 10.1% |
| 47 | Rifle | 8,710 | 3.4% |
| 48 | Alamosa | 8,699 | 0.4% |
| 49 | Delta | 8,675 | 1.5% |
| 50 | Cortez | 8,484 | 0.8% |
| 51 | Lamar | 7,899 | -1.6% |
| 52 | Frederick | 7,721 | 15.6% |
| 53 | Firestone | 7,573 | 18.8% |
| 54 | Fort Lupton | 7,515 | 0.6% |
| 55 | La Junta | 6,980 | -1.1% |
| 56 | Woodland Park | 6,715 | -0.1% |
| 57 | Avon | 6,473 | 1.9% |
| 58 | Cherry Hills Village | 6,234 | 0.6% |
| 59 | Estes Park | 6,212 | 1.6% |
| 60 | Carbondale | 6,040 | 1.9% |
| 61 | Milliken | 5,977 | 10.1% |
| 62 | Aspen | 5,808 | -0.4% |
| 63 | Gypsum | 5,751 | 5.7% |
| 64 | Wellington | 5,556 | 10.8% |
| 65 | Gunnison | 5,421 | 0.0% |
| 66 | Eagle | 5,415 | 8.5% |
| 67 | Sheridan | 5,401 | -0.4% |
| 68 | Salida | 5,401 | -0.5% |
| 69 | Berthoud | 5,309 | 0.8% |
| 70 | Brush | 5,273 | 0.4% |
| 71 | Manitou Springs | 5,149 | 0.4% |
| 72 | Edgewater | 5,123 | -0.9% |
| 73 | Glendale | 4,746 | 0.6% |
| 74 | Monument | 4,648 | 11.7% |
| 75 | Vail | 4,629 | – |
| 76 | Lochbuie | 4,481 | 11.0% |
| 77 | Eaton | 4,123 | 5.7% |
| 78 | Monte Vista | 4,019 | -1.9% |
| 79 | Dacono | 3,976 | 3.7% |
| 80 | Rocky Ford | 3,945 | -1.1% |
| 81 | Burlington | 3,887 | 0.9% |
| 82 | Silverthorne | 3,876 | 2.6% |
| 83 | Walsenburg | 3,758 | -1.4% |
| 84 | Castle Pines North | 3,731 | 0.4% |
| 85 | Florence | 3,581 | -0.3% |
| 86 | New Castle | 3,489 | 7.8% |
| 87 | Breckenridge | 3,341 | 2.3% |
| 88 | Yuma | 3,237 | -0.2% |
| 89 | Basalt | 3,155 | 2.0% |
| 90 | Mead | 3,141 | 6.6% |
| 91 | Orchard City | 3,139 | 1.2% |
| 92 | Palisade | 2,818 | 1.2% |
| 93 | Severance | 2,806 | 22.7% |
| 94 | Leadville | 2,704 | -0.6% |
| 95 | Frisco | 2,622 | 1.1% |
| 96 | Platteville | 2,614 | 1.3% |
| 97 | Bennett | 2,567 | 3.1% |
| 98 | Silt | 2,512 | 5.1% |
| 99 | Telluride | 2,367 | 0.7% |
| 100 | Center | 2,358 | -0.2% |
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