Idaho Non-Hispanic White Alone Citizen 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 White Alone citizen population for Idaho was 3,187,680 and represented 195.98% of the total Idaho citizen population.

Among all Idaho counties, Ada had the highest Non-Hispanic White Alone citizen population (375.27K), followed by Canyon (148.74K), and Kootenai (138.84K).

In terms of percentages, Camas had the highest percentage of its citizen population being Non-Hispanic White Alone (99.43%), followed by Valley (97.21%), and Butte (97.11%).

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:
Idaho Non-Hispanic White Alone Citizen Population By County in 2018
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County Citizen Population % of County Citizen Population
Ada 375265 86.64
Canyon 148740 74.09
Kootenai 138835 91.14
Bonneville 93280 85.48
Bannock 70905 85.43
Twin Falls 65785 83.48
Bonner 39635 93.71
Nez Perce 34915 87.45
Latah 34225 90.86
Madison 34105 90.50
Bingham 33575 76.68
Jefferson 24220 89.16
Elmore 19205 76.42
Payette 18075 82.72
Cassia 16475 76.22
Blaine 16335 82.94
Gem 14920 89.50
Idaho 14865 91.34
Jerome 14545 71.30
Minidoka 12810 69.08
Franklin 12095 93.18
Shoshone 11390 91.78
Fremont 10980 88.02
Gooding 10275 75.14
Boundary 10250 91.03
Valley 10100 97.21
Teton 8745 84.21
Washington 7915 83.23
Owyhee 7790 74.19
Clearwater 7775 91.26
Benewah 7660 84.83
Lemhi 7225 94.08
Boise 6525 92.03
Caribou 6355 94.01
Bear Lake 5560 94.16
Power 4685 67.12
Oneida 4015 94.58
Custer 3735 90.88
Adams 3700 92.50
Lincoln 3550 76.34
Lewis 3255 85.43
Butte 2520 97.11
Camas 870 99.43
Clark 465 58.13