Montana Non-Hispanic American Indian and Alaska Native Alone Citizen Voting-age Population By County in 2018 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2018, the Non-Hispanic American Indian & Alaska Native Alone citizen voting-age population for Montana was 18,765 and represented 2.33% of the total Montana citizen voting-age population.

Among all Montana counties, Glacier had the highest Non-Hispanic American Indian & Alaska Native Alone citizen voting-age population (5.75K), followed by Big Horn (5.24K), and Lake (4.75K).

In terms of percentages, Glacier had the highest percentage of its citizen voting-age population being Non-Hispanic American Indian & Alaska Native Alone (62.14%), followed by Big Horn (59.82%), and Roosevelt (51.51%).

The chart and table below shows the Non-Hispanic American Indian & Alaska Native Alone citizen voting-age population of each county and the percentage of each county's citizen voting-age population that were Non-Hispanic American Indian & Alaska Native 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 American Indian and Alaska Native Alone Citizen Voting-age Population By County in 2018
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County Citizen Voting-age Population % of County Citizen Voting-age Population
Glacier 5745 62.14
Big Horn 5240 59.82
Lake 4745 21.25
Yellowstone 4075 3.42
Roosevelt 3840 51.51
Cascade 2430 3.87
Hill 2180 18.48
Blaine 2090 44.33
Rosebud 1995 30.84
Missoula 1860 2.02
Flathead 1135 1.50
Lewis and Clark 910 1.75
Chouteau 770 17.62
Silver Bow 570 2.09
Pondera 555 12.39
Gallatin 460 0.56
Valley 410 7.03
Richland 320 3.79
Sanders 320 3.42
Phillips 300 9.59
Powell 265 4.53
Ravalli 240 0.72
Toole 175 4.39
Beaverhead 145 1.93
Carbon 125 1.45
Lincoln 125 0.80
Custer 120 1.31
Deer Lodge 110 1.45
Mineral 100 2.90
Dawson 95 1.33
Fergus 75 0.84
Broadwater 70 1.50
Jefferson 70 0.75
Park 70 0.54
Stillwater 70 0.96
Madison 60 0.90
Teton 45 0.98
Sweet Grass 40 1.39
Sheridan 35 1.26
Judith Basin 30 1.88
Meagher 30 1.92
Powder River 25 1.85
Wheatland 25 1.58
Granite 15 0.56
McCone 15 1.16
Daniels 10 0.73
Carter 4 0.38
Fallon 4 0.19
Musselshell 4 0.11
Prairie 4 0.39
Wibaux 4 0.49
Garfield 0 0.00
Golden Valley 0 0.00
Liberty 0 0.00
Petroleum 0 0.00
Treasure 0 0.00