| Rank | City | 2014 Population (Est.) | Growth Rate (Annual) |
|---|---|---|---|
| 1 | Denver | 649,495 | 2.7% |
| 2 | Colorado Springs | 439,886 | 1.8% |
| 3 | Aurora | 345,803 | 2.1% |
| 4 | Fort Collins | 152,061 | 1.8% |
| 5 | Lakewood | 147,214 | 1.0% |
| 6 | Thornton | 127,359 | 2.4% |
| 7 | Arvada | 111,707 | 1.6% |
| 8 | Westminster | 110,945 | 1.5% |
| 9 | Pueblo | 108,249 | 0.5% |
| 10 | Centennial | 106,114 | 1.9% |
| 11 | Boulder | 103,166 | 1.9% |
| 12 | Greeley | 96,539 | 1.3% |
| 13 | Longmont | 89,919 | 1.4% |
| 14 | Loveland | 71,334 | 2.2% |
| 15 | Grand Junction | 59,778 | 0.7% |
| 16 | Broomfield | 59,471 | 2.1% |
| 17 | Castle Rock | 53,063 | 3.2% |
| 18 | Commerce City | 49,799 | 2.7% |
| 19 | Parker | 48,608 | 2.4% |
| 20 | Littleton | 44,275 | 2.0% |
| 21 | Northglenn | 37,499 | 1.6% |
| 22 | Brighton | 35,719 | 2.3% |
| 23 | Englewood | 31,516 | 1.4% |
| 24 | Wheat Ridge | 30,920 | 0.8% |
| 25 | Fountain | 27,265 | 1.8% |
| 26 | Lafayette | 26,784 | 3.1% |
| 27 | Windsor | 20,422 | 3.1% |
| 28 | Evans | 19,944 | 2.5% |
| 29 | Erie | 19,723 | 2.8% |
| 30 | Louisville | 19,588 | 2.2% |
| 31 | Golden | 19,393 | 0.9% |
| 32 | Montrose | 19,015 | -0.2% |
| 33 | Durango | 17,557 | 1.3% |
| 34 | Cañon City | 16,318 | -0.2% |
| 35 | Greenwood Village | 14,652 | 1.7% |
| 36 | Sterling | 14,637 | -0.3% |
| 37 | Lone Tree | 13,267 | 9.1% |
| 38 | Superior | 12,865 | 1.0% |
| 39 | Fruita | 12,724 | 0.2% |
| 40 | Steamboat Springs | 12,100 | 0.0% |
| 41 | Johnstown | 12,093 | 6.9% |
| 42 | Federal Heights | 11,973 | 1.4% |
| 43 | Fort Morgan | 11,407 | 0.3% |
| 44 | Firestone | 11,175 | 3.3% |
| 45 | Castle Pines | 10,726 | 1.0% |
| 46 | Frederick | 10,196 | 5.5% |
| 47 | Glenwood Springs | 9,837 | 0.8% |
| 48 | Alamosa | 9,562 | 2.9% |
| 49 | Rifle | 9,489 | 1.1% |
| 50 | Craig | 8,981 | -1.7% |
| 51 | Delta | 8,860 | -0.2% |
| 52 | Cortez | 8,568 | 0.3% |
| 53 | Trinidad | 8,465 | -2.4% |
| 54 | Lamar | 7,776 | -0.1% |
| 55 | Fort Lupton | 7,689 | 1.4% |
| 56 | Woodland Park | 7,153 | -0.2% |
| 57 | La Junta | 7,079 | 0.0% |
| 58 | Aspen | 6,728 | 0.3% |
| 59 | Wellington | 6,725 | 2.3% |
| 60 | Gypsum | 6,672 | 1.0% |
| 61 | Carbondale | 6,553 | 0.6% |
| 62 | Eagle | 6,522 | 0.1% |
| 63 | Avon | 6,410 | -0.2% |
| 64 | Cherry Hills Village | 6,315 | 1.8% |
| 65 | Estes Park | 6,086 | 1.3% |
| 66 | Milliken | 5,927 | 1.8% |
| 67 | Sheridan | 5,874 | 1.2% |
| 68 | Gunnison | 5,873 | 0.1% |
| 69 | Monument | 5,817 | 1.7% |
| 70 | Brush | 5,501 | 0.2% |
| 71 | Salida | 5,409 | 1.1% |
| 72 | Berthoud | 5,394 | 1.9% |
| 73 | Vail | 5,311 | 0.0% |
| 74 | Edgewater | 5,255 | 0.5% |
| 75 | Manitou Springs | 5,245 | 1.7% |
| 76 | Lochbuie | 5,191 | 3.2% |
| 77 | Breckenridge | 4,648 | 0.8% |
| 78 | Eaton | 4,647 | 2.1% |
| 79 | New Castle | 4,574 | 0.4% |
| 80 | Glendale | 4,512 | 2.5% |
| 81 | Monte Vista | 4,387 | -0.4% |
| 82 | Dacono | 4,374 | 1.8% |
| 83 | Silverthorne | 4,021 | 1.1% |
| 84 | Burlington | 4,003 | -2.0% |
| 85 | Mead | 3,985 | 5.4% |
| 86 | Rocky Ford | 3,912 | -0.4% |
| 87 | Basalt | 3,857 | – |
| 88 | Florence | 3,847 | -0.3% |
| 89 | Yuma | 3,575 | 0.5% |
| 90 | Severance | 3,396 | 2.4% |
| 91 | Orchard City | 3,061 | -0.6% |
| 92 | Silt | 2,980 | 0.6% |
| 93 | Walsenburg | 2,927 | -1.6% |
| 94 | Snowmass Village | 2,865 | 0.5% |
| 95 | Frisco | 2,821 | 1.7% |
| 96 | Buena Vista | 2,736 | 1.5% |
| 97 | Palisade | 2,633 | -0.7% |
| 98 | Leadville | 2,580 | -0.3% |
| 99 | Platteville | 2,568 | 1.1% |
| 100 | Palmer Lake | 2,540 | 1.6% |
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