Colorado Voting-age Population By County in 2021 (ACS-5Yrs)
Updated on July 3, 2024.
Based on the US Census ACS-5Yrs estimates, in 2021, the voting-age population of Colorado was 4.46M which was 77.94% of the total Colorado population. Among all Colorado counties, Denver had the highest voting-age population (570.80K), followed by El Paso (549.32K), and Arapahoe (498.88K).
On the other hand, the counties with the least voting-age population were: San Juan (595), Mineral (686), and Hinsdale (762).
The chart and table below shows the voting-age population of each county and the percentage of each county's population that are of voting-age.
You can see similar information for other states and by state for the United States.
Related Topics: Colorado ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census - ACS 5-Year Estimates, 2021 Census.
Colorado Voting-age Population By County in 2021
Colorado Voting-age Population By County in 2021
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| County | Voting-age Population | % of County Population |
|---|---|---|
| Adams | 379526 | 73.70 |
| Alamosa | 12358 | 75.46 |
| Arapahoe | 498876 | 76.56 |
| Archuleta | 10899 | 82.15 |
| Baca | 2749 | 78.12 |
| Bent | 4947 | 84.41 |
| Boulder | 266578 | 81.10 |
| Broomfield | 56436 | 77.63 |
| Chaffee | 16520 | 85.00 |
| Cheyenne | 1207 | 71.38 |
| Clear Creek | 8211 | 87.10 |
| Conejos | 5612 | 74.05 |
| Costilla | 2965 | 84.31 |
| Crowley | 5097 | 84.70 |
| Custer | 3988 | 84.49 |
| Delta | 25054 | 80.47 |
| Denver | 570801 | 80.76 |
| Dolores | 2016 | 88.11 |
| Douglas | 262672 | 74.64 |
| Eagle | 43765 | 78.58 |
| Elbert | 20353 | 78.59 |
| El Paso | 549316 | 76.01 |
| Fremont | 41044 | 83.75 |
| Garfield | 45794 | 74.80 |
| Gilpin | 4950 | 85.17 |
| Grand | 12873 | 82.37 |
| Gunnison | 14053 | 83.40 |
| Hinsdale | 762 | 88.81 |
| Huerfano | 5704 | 84.04 |
| Jackson | 1177 | 85.60 |
| Jefferson | 466461 | 80.41 |
| Kiowa | 1035 | 73.20 |
| Kit Carson | 5247 | 74.20 |
| Lake | 6006 | 80.98 |
| La Plata | 45336 | 81.43 |
| Larimer | 285743 | 80.57 |
| Las Animas | 11867 | 81.67 |
| Lincoln | 4492 | 79.79 |
| Logan | 17340 | 79.67 |
| Mesa | 121472 | 78.53 |
| Mineral | 686 | 86.40 |
| Moffat | 9845 | 74.36 |
| Montezuma | 20291 | 78.30 |
| Montrose | 33312 | 78.70 |
| Morgan | 21343 | 73.93 |
| Otero | 14243 | 76.31 |
| Ouray | 4111 | 84.76 |
| Park | 14695 | 84.53 |
| Phillips | 3228 | 71.78 |
| Pitkin | 14532 | 83.18 |
| Prowers | 8901 | 74.39 |
| Pueblo | 129675 | 77.44 |
| Rio Blanco | 4888 | 75.26 |
| Rio Grande | 8900 | 77.55 |
| Routt | 20530 | 82.45 |
| Saguache | 5104 | 80.14 |
| San Juan | 595 | 85.24 |
| San Miguel | 6721 | 83.14 |
| Sedgwick | 1864 | 75.80 |
| Summit | 25990 | 83.73 |
| Teller | 20467 | 83.18 |
| Washington | 3753 | 77.64 |
| Weld | 238248 | 73.89 |
| Yuma | 7217 | 72.58 |