Montana Non-Hispanic White Alone Citizen 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 population for Montana was 3,246,485 and represented 304.05% of the total Montana citizen population.

Among all Montana counties, Yellowstone had the highest Non-Hispanic White Alone citizen population (139.79K), followed by Gallatin (105.61K), and Missoula (103.68K).

In terms of percentages, Garfield had the highest percentage of its citizen population being Non-Hispanic White Alone (98.97%), followed by Liberty (98.77%), and Prairie (98.32%).

The chart and table below shows the Non-Hispanic White Alone citizen population of each county and the percentage of each county's citizen 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 Population By County in 2021
Montana Non-Hispanic White Alone Citizen Population By County in 2021
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County Citizen Population % of County Citizen Population
Yellowstone 139790 86.17
Gallatin 105610 92.05
Missoula 103680 89.50
Flathead 95080 92.86
Cascade 71045 84.96
Lewis and Clark 63795 91.18
Ravalli 40400 92.67
Silver Bow 31370 90.27
Lake 20045 65.36
Lincoln 18015 92.91
Park 15770 93.26
Hill 11105 68.66
Jefferson 11070 92.33
Sanders 11025 90.26
Custer 10855 91.14
Fergus 10730 94.00
Richland 10105 90.95
Carbon 9820 93.97
Beaverhead 8405 91.01
Deer Lodge 8350 90.32
Dawson 8290 92.57
Stillwater 8205 92.40
Madison 7835 93.16
Valley 6410 85.07
Broadwater 6245 94.98
Powell 6150 88.75
Teton 5745 93.26
Pondera 4810 81.80
Rosebud 4550 54.23
Chouteau 4520 76.94
Musselshell 4360 91.69
Toole 4320 86.83
Glacier 4110 30.04
Mineral 4090 91.50
Roosevelt 3585 33.12
Phillips 3470 83.31
Sweet Grass 3440 93.35
Big Horn 3435 26.07
Sheridan 3125 89.67
Granite 3110 94.24
Blaine 3070 43.73
Fallon 2855 93.45
Liberty 2000 98.77
Wheatland 1965 94.47
Judith Basin 1830 92.19
Meagher 1745 91.36
Daniels 1645 94.81
McCone 1615 90.73
Powder River 1600 92.22
Carter 1320 98.14
Prairie 1170 98.32
Garfield 960 98.97
Wibaux 930 93.00
Golden Valley 675 82.32
Treasure 675 97.12
Petroleum 410 94.25