Montana Non-Hispanic White Alone Citizen Voting-age Population By County in 2020 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2020, the Non-Hispanic White Alone citizen voting-age population for Montana was 2,558,830 and represented 310.62% of the total Montana citizen voting-age population.

Among all Montana counties, Yellowstone had the highest Non-Hispanic White Alone citizen voting-age population (108.68K), followed by Missoula (86.83K), and Gallatin (81.57K).

In terms of percentages, Prairie had the highest percentage of its citizen voting-age population being Non-Hispanic White Alone (100.00%), followed by Garfield (98.77%), and Liberty (98.43%).

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 2020
Montana Non-Hispanic White Alone Citizen Voting-age Population By County in 2020
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County Citizen Voting-age Population % of County Citizen Voting-age Population
Yellowstone 108675 89.43
Missoula 86830 91.16
Gallatin 81565 93.06
Flathead 74090 93.86
Cascade 54870 87.47
Lewis and Clark 49620 92.62
Ravalli 32875 94.05
Silver Bow 25175 91.65
Lake 16250 70.98
Lincoln 15115 94.29
Park 12695 94.11
Jefferson 8930 94.50
Sanders 8810 91.30
Hill 8790 74.68
Custer 8420 92.78
Carbon 8330 95.25
Fergus 8295 94.75
Richland 7445 91.91
Deer Lodge 7115 91.34
Beaverhead 7110 91.33
Stillwater 7010 93.78
Madison 6615 94.30
Dawson 6405 92.29
Powell 5185 87.96
Valley 5005 87.35
Broadwater 4560 93.92
Teton 4330 93.82
Rosebud 3985 61.59
Pondera 3745 84.54
Chouteau 3460 78.82
Musselshell 3435 92.46
Toole 3360 86.93
Mineral 3255 93.00
Glacier 3175 34.14
Big Horn 2975 33.90
Roosevelt 2975 40.73
Sweet Grass 2660 91.72
Granite 2655 97.25
Phillips 2605 85.97
Sheridan 2430 92.40
Blaine 2330 49.84
Fallon 2025 94.41
Liberty 1875 98.43
Wheatland 1625 96.15
Judith Basin 1480 96.10
McCone 1375 95.82
Meagher 1355 94.76
Daniels 1265 94.40
Powder River 1240 91.18
Carter 1020 97.14
Prairie 860 100.00
Garfield 805 98.77
Wibaux 705 91.56
Golden Valley 590 88.06
Treasure 535 98.17
Petroleum 365 96.05