Montana Non-Hispanic White Alone Citizen Voting-age Population By County in 2015 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2015, the Non-Hispanic White Alone citizen voting-age population for Montana was 2,542,045 and represented 325.38% of the total Montana citizen voting-age population.

Among all Montana counties, Yellowstone had the highest Non-Hispanic White Alone citizen voting-age population (105.13K), followed by Missoula (81.94K), and Gallatin (70.16K).

In terms of percentages, Petroleum had the highest percentage of its citizen voting-age population being Non-Hispanic White Alone (100.00%), followed by Wibaux (99.36%), and Meagher (99.01%).

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 2015
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County Citizen Voting-age Population % of County Citizen Voting-age Population
Yellowstone 105125 90.45
Missoula 81935 92.35
Gallatin 70155 94.66
Flathead 67710 94.61
Cascade 55765 88.64
Lewis and Clark 47275 93.46
Ravalli 30475 94.72
Silver Bow 25135 93.13
Lake 15620 71.98
Lincoln 14790 94.66
Park 12030 95.02
Hill 9140 76.49
Custer 8765 94.30
Fergus 8605 95.24
Jefferson 8470 94.58
Sanders 8385 91.69
Carbon 7920 96.23
Richland 7715 93.40
Deer Lodge 7020 92.07
Beaverhead 6950 95.08
Stillwater 6850 95.27
Dawson 6800 93.15
Madison 6160 96.33
Powell 5305 89.69
Valley 5170 88.91
Teton 4385 95.64
Rosebud 4295 65.08
Broadwater 4245 95.72
Pondera 3910 84.91
Toole 3640 88.24
Musselshell 3510 95.51
Chouteau 3475 80.63
Mineral 3375 97.40
Glacier 3280 36.00
Roosevelt 3240 43.14
Big Horn 3130 36.08
Phillips 2805 87.25
Sheridan 2670 94.18
Sweet Grass 2610 95.78
Granite 2565 98.28
Blaine 2410 52.45
Fallon 2180 96.25
Liberty 1790 95.98
Judith Basin 1600 97.56
Wheatland 1590 96.66
Meagher 1495 99.01
Daniels 1380 96.17
Powder River 1365 96.13
McCone 1360 97.14
Prairie 1020 97.14
Carter 975 98.49
Garfield 805 96.99
Wibaux 780 99.36
Golden Valley 605 97.58
Treasure 600 90.23
Petroleum 360 100.00