Idaho 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 Idaho was 2,600,675 and represented 200.30% of the total Idaho citizen voting-age population.

Among all Idaho counties, Ada had the highest Non-Hispanic White Alone citizen voting-age population (315.89K), followed by Canyon (119.51K), and Kootenai (118.12K).

In terms of percentages, Camas had the highest percentage of its citizen voting-age population being Non-Hispanic White Alone (97.24%), followed by Bear Lake (95.13%), and Oneida (94.52%).

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:
Idaho Non-Hispanic White Alone Citizen Voting-age Population By County in 2021
Idaho 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
Ada 315885 87.70
Canyon 119505 77.83
Kootenai 118115 92.10
Bonneville 71180 87.22
Bannock 53685 85.94
Twin Falls 51725 85.39
Bonner 34695 94.11
Madison 32750 90.87
Nez Perce 28985 88.84
Latah 28080 90.51
Bingham 24985 78.68
Jefferson 17665 91.41
Elmore 15660 79.29
Payette 14815 85.54
Blaine 14160 86.34
Gem 12760 90.98
Idaho 12130 91.96
Cassia 11925 78.82
Jerome 10870 81.33
Minidoka 9825 74.12
Shoshone 9510 92.11
Valley 8935 94.00
Franklin 8760 93.74
Fremont 8630 90.99
Boundary 8175 91.80
Gooding 8020 81.38
Teton 7265 90.42
Washington 6550 85.96
Clearwater 6545 91.16
Benewah 6395 87.19
Owyhee 6295 79.03
Lemhi 6055 93.73
Boise 5690 91.48
Caribou 4515 93.38
Bear Lake 4295 95.13
Power 3610 76.24
Custer 3270 92.77
Adams 3265 91.07
Oneida 3020 94.52
Lincoln 2555 79.97
Lewis 2380 86.39
Butte 1800 94.49
Camas 705 97.24
Clark 330 66.67