Montana Non-Hispanic White Alone Citizen Voting-age Population By County in 2021 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2021, the Non-Hispanic White Alone citizen voting-age population for Montana was 2,600,675 and represented 311.27% of the total Montana citizen voting-age population.

Among all Montana counties, Yellowstone had the highest Non-Hispanic White Alone citizen voting-age population (110.30K), followed by Gallatin (85.30K), and Missoula (85.28K).

In terms of percentages, Garfield had the highest percentage of its citizen voting-age population being Non-Hispanic White Alone (98.68%), followed by Liberty (98.66%), and Carter (98.20%).

The chart and table below shows the Non-Hispanic White Alone citizen voting-age population of each county and the percentage of each county's citizen voting-age population that were Non-Hispanic White Alone.

You can see similar information for other states and by state for the United States.

You can also see similar information for other ethnicities.

See this for other years:
Montana Non-Hispanic White Alone Citizen Voting-age Population By County in 2021
Montana Non-Hispanic White Alone Citizen Voting-age Population By County in 2021
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County Citizen Voting-age Population % of County Citizen Voting-age Population
Yellowstone 110300 89.16
Gallatin 85300 92.95
Missoula 85275 90.85
Flathead 74765 93.70
Cascade 56240 87.19
Lewis and Clark 50725 92.55
Ravalli 33070 93.82
Silver Bow 25255 91.77
Lake 16610 70.92
Lincoln 14855 93.72
Park 13115 93.85
Sanders 9200 91.54
Jefferson 8880 93.28
Custer 8690 91.57
Hill 8600 74.17
Fergus 8510 93.36
Carbon 8145 94.88
Richland 7650 92.56
Deer Lodge 7265 90.98
Beaverhead 7025 91.95
Madison 6620 93.37
Dawson 6515 92.22
Stillwater 6490 93.25
Powell 5255 89.37
Valley 5085 88.21
Broadwater 5035 94.91
Teton 4345 93.74
Pondera 3775 84.45
Rosebud 3670 60.96
Musselshell 3560 92.83
Chouteau 3535 78.47
Toole 3440 86.76
Mineral 3350 92.93
Glacier 3235 33.70
Big Horn 2880 33.12
Roosevelt 2845 39.93
Phillips 2710 85.76
Sweet Grass 2700 92.15
Granite 2645 97.78
Sheridan 2525 91.49
Blaine 2405 49.23
Fallon 2105 91.72
Wheatland 1595 96.67
Meagher 1515 96.50
Liberty 1475 98.66
Judith Basin 1460 96.37
McCone 1360 94.44
Daniels 1305 95.60
Powder River 1305 94.57
Carter 1090 98.20
Prairie 880 97.78
Garfield 750 98.68
Wibaux 695 93.29
Golden Valley 585 85.40
Treasure 560 97.39
Petroleum 330 91.67