Montana Citizen Voting-age Population By County in 2016 (ACS-5Yrs)
Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2016, the citizen voting-age population for Montana was 789,500 and represented 77.15% of the total Montana population.
Among all Montana counties, Yellowstone had the highest citizen voting-age population (117.66K), followed by Missoula (89.74K), and Gallatin (76.14K).
In terms of percentages, Powell had the highest percentage of its population being citizens of voting-age (85.07%), followed by Deer Lodge (84.14%), and Judith Basin (83.59%).
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 |
|---|---|---|
| Yellowstone | 117655 | 75.74 |
| Missoula | 89740 | 79.35 |
| Gallatin | 76135 | 77.72 |
| Flathead | 72845 | 76.93 |
| Cascade | 63040 | 76.83 |
| Lewis and Clark | 51235 | 77.64 |
| Ravalli | 32655 | 79.40 |
| Silver Bow | 27195 | 78.69 |
| Lake | 21840 | 74.51 |
| Lincoln | 15640 | 81.16 |
| Park | 12695 | 80.12 |
| Hill | 11990 | 72.54 |
| Custer | 9300 | 77.63 |
| Sanders | 9225 | 81.10 |
| Glacier | 9220 | 67.32 |
| Jefferson | 9075 | 78.23 |
| Fergus | 8960 | 78.39 |
| Big Horn | 8655 | 65.49 |
| Richland | 8455 | 74.23 |
| Carbon | 8385 | 81.09 |
| Deer Lodge | 7720 | 84.14 |
| Roosevelt | 7565 | 67.36 |
| Beaverhead | 7410 | 79.55 |
| Stillwater | 7270 | 77.84 |
| Dawson | 7255 | 76.94 |
| Rosebud | 6550 | 70.05 |
| Madison | 6400 | 81.95 |
| Powell | 5895 | 85.07 |
| Valley | 5810 | 76.70 |
| Teton | 4615 | 76.09 |
| Pondera | 4605 | 74.70 |
| Blaine | 4595 | 69.52 |
| Broadwater | 4510 | 79.26 |
| Chouteau | 4370 | 74.89 |
| Toole | 4085 | 79.86 |
| Musselshell | 3690 | 77.20 |
| Mineral | 3450 | 81.66 |
| Phillips | 3220 | 77.59 |
| Sheridan | 2820 | 77.37 |
| Sweet Grass | 2760 | 75.93 |
| Granite | 2590 | 80.69 |
| Fallon | 2160 | 74.10 |
| Liberty | 1855 | 81.00 |
| Judith Basin | 1655 | 83.59 |
| Wheatland | 1590 | 75.36 |
| Meagher | 1530 | 78.06 |
| Daniels | 1430 | 80.11 |
| Powder River | 1365 | 82.73 |
| McCone | 1325 | 78.87 |
| Prairie | 1055 | 74.56 |
| Carter | 1035 | 79.92 |
| Wibaux | 880 | 76.86 |
| Garfield | 840 | 79.25 |
| Treasure | 680 | 80.47 |
| Golden Valley | 595 | 81.51 |
| Petroleum | 370 | 83.15 |
