Colorado 2019 Population By County
Updated on December 2, 2021.
According to the US Census Bureau population estimates, there were 5,758,486 people living in Colorado in 2019. Denver County was the most populated county with 725,508 residents, followed by El Paso County with 721,929 residents, and Arapahoe County with 656,051 residents. San Juan County with a population of 723 was the least populated county in Colorado in 2019.
Use the map below to interactively explore the population of each county in Colorado in 2019. The data can also be explored further by sorting and filtering with the table below.
Data Source: US Census Bureau (CO-EST2020-07).
Colorado 2019 Population By County
Table of Colorado 2019 Population By County
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| County | Population | % of State Population |
|---|---|---|
| Adams | 516575 | 8.97 |
| Alamosa | 16200 | 0.28 |
| Arapahoe | 656051 | 11.39 |
| Archuleta | 13928 | 0.24 |
| Baca | 3620 | 0.06 |
| Bent | 5578 | 0.10 |
| Boulder | 326020 | 5.66 |
| Broomfield | 70617 | 1.23 |
| Chaffee | 20319 | 0.35 |
| Cheyenne | 1824 | 0.03 |
| Clear Creek | 9598 | 0.17 |
| Conejos | 8169 | 0.14 |
| Costilla | 3872 | 0.07 |
| Crowley | 5989 | 0.10 |
| Custer | 5119 | 0.09 |
| Delta | 31021 | 0.54 |
| Denver | 725508 | 12.60 |
| Dolores | 2042 | 0.04 |
| Douglas | 351842 | 6.11 |
| Eagle | 55183 | 0.96 |
| Elbert | 26707 | 0.46 |
| El Paso | 721929 | 12.54 |
| Fremont | 48009 | 0.83 |
| Garfield | 60031 | 1.04 |
| Gilpin | 6232 | 0.11 |
| Grand | 15748 | 0.27 |
| Gunnison | 17480 | 0.30 |
| Hinsdale | 789 | 0.01 |
| Huerfano | 6868 | 0.12 |
| Jackson | 1397 | 0.02 |
| Jefferson | 582800 | 10.12 |
| Kiowa | 1417 | 0.03 |
| Kit Carson | 7161 | 0.12 |
| Lake | 8072 | 0.14 |
| La Plata | 56440 | 0.98 |
| Larimer | 357241 | 6.20 |
| Las Animas | 14415 | 0.25 |
| Lincoln | 5694 | 0.10 |
| Logan | 22409 | 0.39 |
| Mesa | 154552 | 2.68 |
| Mineral | 756 | 0.01 |
| Moffat | 13209 | 0.23 |
| Montezuma | 26369 | 0.46 |
| Montrose | 42791 | 0.74 |
| Morgan | 28938 | 0.50 |
| Otero | 18243 | 0.32 |
| Ouray | 5005 | 0.09 |
| Park | 18881 | 0.33 |
| Phillips | 4359 | 0.08 |
| Pitkin | 17902 | 0.31 |
| Prowers | 12106 | 0.21 |
| Pueblo | 168409 | 2.93 |
| Rio Blanco | 6350 | 0.11 |
| Rio Grande | 11277 | 0.20 |
| Routt | 25579 | 0.44 |
| Saguache | 6829 | 0.12 |
| San Juan | 723 | 0.01 |
| San Miguel | 8169 | 0.14 |
| Sedgwick | 2274 | 0.04 |
| Summit | 30851 | 0.54 |
| Teller | 25408 | 0.44 |
| Washington | 4869 | 0.09 |
| Weld | 324703 | 5.64 |
| Yuma | 10020 | 0.17 |
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