Colorado Citizen Voting-age Population By County in 2019 (ACS-5Yrs)
Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2019, the citizen voting-age population for Colorado was 4,063,875 and represented 72.44% of the total Colorado population.
Among all Colorado counties, El Paso had the highest citizen voting-age population (508.59K), followed by Denver (505.89K), and Jefferson (444.11K).
In terms of percentages, Mineral had the highest percentage of its population being citizens of voting-age (88.49%), followed by San Juan (87.29%), and Crowley (84.62%).
The chart and table below shows the citizen voting-age population of each county and the percentage of each county's population that were citizens of voting-age.
You can see similar information for other states and by state for the United States.
| County | Citizen Voting-age Population | % of County Population |
|---|---|---|
| El Paso | 508590 | 72.76 |
| Denver | 505890 | 71.70 |
| Jefferson | 444105 | 77.26 |
| Arapahoe | 442775 | 68.69 |
| Adams | 323020 | 64.08 |
| Larimer | 266620 | 77.33 |
| Boulder | 241905 | 75.01 |
| Douglas | 236635 | 70.42 |
| Weld | 209085 | 68.47 |
| Pueblo | 125800 | 75.79 |
| Mesa | 114980 | 76.04 |
| Broomfield | 49890 | 73.49 |
| La Plata | 44415 | 79.86 |
| Fremont | 39195 | 82.83 |
| Garfield | 38115 | 64.54 |
| Eagle | 36170 | 66.15 |
| Montrose | 31170 | 74.78 |
| Delta | 23825 | 77.95 |
| Summit | 23550 | 76.83 |
| Montezuma | 19950 | 76.64 |
| Teller | 19920 | 81.22 |
| Routt | 19885 | 79.32 |
| Elbert | 19820 | 77.08 |
| Morgan | 18510 | 64.91 |
| Logan | 16990 | 75.92 |
| Chaffee | 16330 | 83.51 |
| Park | 14905 | 83.43 |
| Pitkin | 13755 | 76.74 |
| Gunnison | 13560 | 80.71 |
| Otero | 13305 | 72.78 |
| Grand | 12165 | 79.48 |
| Alamosa | 11370 | 70.60 |
| Las Animas | 11240 | 78.79 |
| Archuleta | 10705 | 80.76 |
| Moffat | 9270 | 70.63 |
| Rio Grande | 8305 | 73.46 |
| Prowers | 8165 | 67.93 |
| Clear Creek | 7860 | 82.78 |
| Yuma | 6530 | 65.27 |
| San Miguel | 6145 | 76.33 |
| Conejos | 5900 | 72.57 |
| Lake | 5800 | 74.84 |
| Huerfano | 5515 | 82.56 |
| Kit Carson | 5225 | 70.18 |
| Gilpin | 5050 | 83.89 |
| Crowley | 4870 | 84.62 |
| Saguache | 4780 | 72.53 |
| Rio Blanco | 4730 | 74.08 |
| Bent | 4710 | 81.42 |
| Lincoln | 4275 | 76.54 |
| Custer | 4040 | 84.61 |
| Ouray | 3990 | 83.21 |
| Washington | 3670 | 75.36 |
| Costilla | 2860 | 76.37 |
| Phillips | 2740 | 63.87 |
| Baca | 2735 | 76.83 |
| Sedgwick | 1690 | 72.85 |
| Dolores | 1435 | 77.36 |
| Cheyenne | 1340 | 66.17 |
| Kiowa | 1090 | 73.15 |
| Jackson | 1050 | 83.33 |
| Mineral | 730 | 88.49 |
| Hinsdale | 715 | 83.63 |
| San Juan | 515 | 87.29 |
