Idaho Non-Hispanic Black or African American 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 Black Alone citizen voting-age population for Idaho was 960,075 and represented 80.49% of the total Idaho citizen voting-age population.

Among all Idaho counties, Ada had the highest Non-Hispanic Black Alone citizen voting-age population (2.96K), followed by Canyon (590), and Elmore (545).

In terms of percentages, Elmore had the highest percentage of its citizen voting-age population being Non-Hispanic Black Alone (2.96%), followed by Ada (0.91%), and Clark (0.83%).

The chart and table below shows the Non-Hispanic Black Alone citizen voting-age population of each county and the percentage of each county's citizen voting-age population that were Non-Hispanic Black 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 Black or African American Alone Citizen Voting-age Population By County in 2018
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County Citizen Voting-age Population % of County Citizen Voting-age Population
Ada 2955 0.91
Canyon 590 0.42
Elmore 545 2.96
Bannock 320 0.53
Bonneville 310 0.42
Kootenai 290 0.25
Latah 190 0.63
Twin Falls 140 0.25
Madison 100 0.37
Nez Perce 80 0.26
Blaine 65 0.44
Payette 40 0.26
Cassia 35 0.25
Clearwater 35 0.49
Owyhee 35 0.47
Shoshone 35 0.35
Bingham 30 0.10
Bonner 30 0.09
Franklin 30 0.35
Fremont 25 0.28
Bear Lake 20 0.47
Idaho 20 0.15
Jefferson 15 0.09
Teton 15 0.20
Adams 10 0.31
Boise 10 0.17
Minidoka 10 0.08
Benewah 4 0.06
Boundary 4 0.05
Butte 4 0.20
Clark 4 0.83
Custer 4 0.12
Gooding 4 0.04
Lemhi 4 0.06
Lewis 4 0.14
Oneida 4 0.13
Power 4 0.09
Valley 4 0.05
Washington 4 0.06
Camas 0 0.00
Caribou 0 0.00
Gem 0 0.00
Jerome 0 0.00
Lincoln 0 0.00