Population of Colorado 2021
Population
According to the 2010 Census, Colorado has 5,029,196 residents, of which 81.3% are white, 4% are black or African-American, 2.8% are Asian-Americans and 1.1% are Indians, and others are 7.2%. 20.7% describe themselves as Hispanics. In 2017 the population was estimated at 5,607,154.
With a population growth of around 8.4% (USA: 5.3%) from the census in April 2000 to July 2005, Colorado was above the national average. It is expected to have more than seven million residents by 2030.
Colorado’s largest city with around 600,000 residents is the state capital Denver, which is also the economic and cultural center of the state.
Top Counties by Population in Colorado
| Rank | County Name | Population | Population Density (per km²) |
| 1 | El Paso County | 622,274 | 112.87 |
| 2 | City and County of Denver | 600,169 | 1,489.25 |
| 3 | Arapahoe County | 572,014 | 274.61 |
| 4 | Jefferson County | 534,554 | 267.01 |
| 5 | Adams County | 441,614 | 144.22 |
| 6 | Larimer County | 299,641 | 43.96 |
| 7 | Boulder County | 294,578 | 153.59 |
| 8 | Douglas County | 285,476 | 130.83 |
| 9 | Weld County | 252,836 | 24.32 |
| 10 | Pueblo County | 159,074 | 25.62 |
| 11 | Mesa County | 146,734 | 16.93 |
| 12 | Garfield County | 56,400 | 7.36 |
| 13 | City and County of Broomfield | 55,900 | 642.53 |
| 14 | Eagle County | 52,208 | 11.85 |
| 15 | La Plata County | 51,345 | 11.66 |
| 16 | Fremont County | 46,835 | 11.79 |
| 17 | Montrose County | 41,287 | 7.10 |
| 18 | Delta County | 30,963 | 10.40 |
| 19 | Morgan County | 28,170 | 8.41 |
| 20 | Summit County | 28,005 | 17.47 |
| 21 | Montezuma County | 25,546 | 4.84 |
| 22 | Routt County | 23,520 | 3.84 |
| 23 | Teller County | 23,361 | 16.14 |
| 24 | Elbert County | 23,097 | 4.82 |
| 25 | Logan County | 22,720 | 4.75 |
| 26 | Otero County | 18,842 | 5.74 |
| 27 | Chaffee County | 17,820 | 6.78 |
| 28 | Pitkin County | 17,159 | 6.83 |
| 29 | Park County | 16,217 | 2.83 |
| 30 | Las Animas County | 15,518 | 1.26 |
| 31 | Alamosa County | 15,456 | 8.25 |
| 32 | Gunnison County | 15,335 | 1.82 |
| 33 | Grand County | 14,854 | 3.07 |
| 34 | Moffat County | 13,806 | 1.12 |
| 35 | Prowers County | 12,562 | 2.95 |
| 36 | Archuleta County | 12,095 | 3.45 |
| 37 | Rio Grande County | 11,993 | 5.07 |
| 38 | Yuma County | 10,054 | 1.64 |
| 39 | Clear Creek County | 9,099 | 8.86 |
| 40 | Kit Carson County | 8,281 | 1.48 |
| 41 | Conejos County | 8,267 | 2.47 |
| 42 | San Miguel County | 7,370 | 2.20 |
| 43 | Lake County | 7,321 | 7.37 |
| 44 | Huerfano County | 6,722 | 1.63 |
| 45 | Rio Blanco County | 6,677 | 0.80 |
| 46 | Bent County | 6,510 | 1.63 |
| 47 | Saguache County | 6,119 | 0.75 |
| 48 | Crowley County | 5,834 | 2.81 |
| 49 | Lincoln County | 5,478 | 0.82 |
| 50 | Gilpin County | 5,452 | 14.02 |
| 51 | Washington County | 4,825 | 0.74 |
| 52 | Phillips County | 4,453 | 2.50 |
| 53 | Ouray County | 4,447 | 3.17 |
| 54 | Custer County | 4,266 | 2.23 |
| 55 | Baca County | 3,799 | 0.57 |
| 56 | Costilla County | 3,535 | 1.11 |
| 57 | Sedgwick County | 2,390 | 1.68 |
| 58 | Dolores County | 2,075 | 0.74 |
| 59 | Cheyenne County | 1,847 | 0.40 |
| 60 | Kiowa County | 1,409 | 0.30 |
| 61 | Jackson County | 1,405 | 0.33 |
| 62 | Hinsdale County | 854 | 0.29 |
| 63 | Mineral County | 723 | 0.32 |
| 64 | San Juan County | 710 | 0.71 |