Montana Citizen Voting-age Population By County in 2011 (ACS-5Yrs)
Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2011, the citizen voting-age population for Montana was 751,240 and represented 76.43% of the total Montana population.
Among all Montana counties, Yellowstone had the highest citizen voting-age population (110.57K), followed by Missoula (85.47K), and Gallatin (69.22K).
In terms of percentages, Prairie had the highest percentage of its population being citizens of voting-age (84.48%), followed by Powell (82.25%), and Carter (82.21%).
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 | 110570 | 75.66 |
| Missoula | 85465 | 78.82 |
| Gallatin | 69225 | 77.65 |
| Flathead | 67940 | 75.23 |
| Cascade | 61645 | 76.17 |
| Lewis and Clark | 47875 | 76.48 |
| Ravalli | 30885 | 76.83 |
| Silver Bow | 26460 | 77.86 |
| Lake | 21160 | 73.91 |
| Lincoln | 15560 | 79.49 |
| Park | 12490 | 79.53 |
| Hill | 11620 | 72.22 |
| Fergus | 9105 | 79.07 |
| Glacier | 9035 | 67.78 |
| Custer | 9005 | 77.50 |
| Sanders | 8980 | 78.63 |
| Jefferson | 8590 | 76.15 |
| Big Horn | 8530 | 66.77 |
| Carbon | 7835 | 78.23 |
| Deer Lodge | 7470 | 80.37 |
| Richland | 7255 | 75.03 |
| Beaverhead | 7170 | 78.19 |
| Dawson | 7170 | 80.02 |
| Roosevelt | 7030 | 68.09 |
| Stillwater | 6970 | 77.23 |
| Rosebud | 6415 | 69.73 |
| Madison | 6175 | 80.67 |
| Powell | 5815 | 82.25 |
| Valley | 5635 | 76.25 |
| Teton | 4590 | 75.18 |
| Pondera | 4545 | 73.72 |
| Blaine | 4515 | 69.73 |
| Chouteau | 4165 | 72.00 |
| Toole | 4120 | 79.61 |
| Broadwater | 3935 | 72.27 |
| Musselshell | 3525 | 79.66 |
| Mineral | 3345 | 79.74 |
| Phillips | 3200 | 75.74 |
| Sweet Grass | 2815 | 76.08 |
| Sheridan | 2730 | 79.71 |
| Granite | 2500 | 81.83 |
| Fallon | 2170 | 75.87 |
| Liberty | 1805 | 78.48 |
| Wheatland | 1720 | 80.37 |
| Judith Basin | 1670 | 81.07 |
| Meagher | 1430 | 75.26 |
| Daniels | 1390 | 80.81 |
| McCone | 1355 | 74.66 |
| Powder River | 1285 | 77.64 |
| Carter | 1040 | 82.21 |
| Prairie | 925 | 84.48 |
| Garfield | 895 | 77.16 |
| Wibaux | 765 | 79.28 |
| Treasure | 655 | 79.39 |
| Golden Valley | 650 | 74.29 |
| Petroleum | 420 | 73.68 |
