State
Colorado
5,862,189 residents · 555 cities · 64 counties · 512 ZIP codes
Population
5,862,189
Cities
555
Counties
64
ZIP Codes
512
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Largest Cities in Colorado
| # | City | Population | County |
|---|---|---|---|
| 1 | Denver, CO | 2,714,768 | Denver County |
| 2 | Colorado Springs, CO | 643,336 | El Paso County |
| 3 | Aurora, CO | 394,432 | Arapahoe County |
| 4 | Fort Collins, CO | 336,364 | Larimer County |
| 5 | Lakewood, CO | 156,583 | Jefferson County |
| 6 | Thornton, CO | 144,187 | Adams County |
| 7 | Grand Junction, CO | 140,777 | Mesa County |
| 8 | Greeley, CO | 139,842 | Weld County |
| 9 | Arvada, CO | 122,634 | Jefferson County |
| 10 | Pueblo, CO | 121,976 | Pueblo County |
| 11 | Boulder, CO | 120,289 | Boulder County |
| 12 | Westminster, CO | 115,484 | Adams County |
| 13 | Centennial, CO | 108,201 | Arapahoe County |
| 14 | Longmont, CO | 102,512 | Boulder County |
| 15 | Highlands Ranch, CO | 102,257 | Douglas County |
| 16 | Lafayette, CO | 99,552 | Boulder County |
| 17 | Castle Rock, CO | 79,123 | Douglas County |
| 18 | Loveland, CO | 78,410 | Larimer County |
| 19 | Broomfield, CO | 76,304 | Broomfield County |
| 20 | Commerce City, CO | 66,445 | Adams County |
All Cities in Colorado
Denver, COPop. 2,714,768Colorado Springs, COPop. 643,336Aurora, COPop. 394,432Fort Collins, COPop. 336,364Lakewood, COPop. 156,583Thornton, COPop. 144,187Grand Junction, COPop. 140,777Greeley, COPop. 139,842Arvada, COPop. 122,634Pueblo, COPop. 121,976Boulder, COPop. 120,289Westminster, COPop. 115,484Centennial, COPop. 108,201Longmont, COPop. 102,512Highlands Ranch, COPop. 102,257Lafayette, COPop. 99,552Castle Rock, COPop. 79,123Loveland, COPop. 78,410Broomfield, COPop. 76,304Commerce City, COPop. 66,445Parker, COPop. 61,783Littleton, COPop. 44,710Brighton, COPop. 42,059Northglenn, COPop. 38,014Windsor, COPop. 37,914Security-Widefield, COPop. 37,345Pueblo West, COPop. 35,681Englewood, COPop. 34,129Erie, COPop. 33,808Dakota Ridge, COPop. 33,753Ken Caryl, COPop. 33,233Canon City, COPop. 32,292Wheat Ridge, COPop. 32,070Fountain, COPop. 29,300Columbine, COPop. 25,478Four Square Mile, COPop. 23,024Evans, COPop. 22,396Montrose, COPop. 21,044Louisville, COPop. 20,786Golden, COPop. 20,417Cimarron Hills, COPop. 19,817Clifton, COPop. 19,518Durango, COPop. 19,411Johnstown, COPop. 18,883Sherrelwood, COPop. 18,692Firestone, COPop. 18,049Fort Carson, COPop. 18,019Cañon City, COPop. 17,122Frederick, COPop. 16,651Welby, COPop. 16,197
Counties in Colorado
El Paso CountyPop. 742,999Denver CountyPop. 718,877Arapahoe CountyPop. 659,844Jefferson CountyPop. 579,377Adams CountyPop. 530,225Douglas CountyPop. 377,150Larimer CountyPop. 367,368Weld CountyPop. 350,396Boulder CountyPop. 328,961Pueblo CountyPop. 169,356Mesa CountyPop. 158,601Broomfield CountyPop. 76,304Garfield CountyPop. 62,479La Plata CountyPop. 56,331Eagle CountyPop. 55,135Fremont CountyPop. 49,634Montrose CountyPop. 43,807Delta CountyPop. 31,598Summit CountyPop. 31,017Morgan CountyPop. 29,520Elbert CountyPop. 27,874Montezuma CountyPop. 26,412Routt CountyPop. 25,084Teller CountyPop. 24,825Logan CountyPop. 20,892Chaffee CountyPop. 20,178Otero CountyPop. 18,321Park CountyPop. 17,907Gunnison CountyPop. 17,241Pitkin CountyPop. 16,985