Ranking of Idaho Counties By Percentage of Population that are Black or African American Alone in 2021

Updated on June 18, 2025.

Based on the US Census Vintage data estimates, in 2021, among all Idaho counties, Elmore County had the highest percentage of its population who identified their race as Black or African American Alone (3.1%), followed by Clark County (2.27%), and Ada County (1.38%).

The chart below shows the top 10 counties, and the table below shows the ranking of all Idaho counties.

You can see similar ranking information for other racial and ethnicity groups in the United States.

You can also see similar information for other states, and also the ranking of all counties in the United States.

See this for other years:
Ranking of Idaho Counties By Percentage of Pop. that are Black or African American Alone in 2021
Elmore
Clark
Ada
Power
Bannock
Cassia
Madison
Twin Falls
Canyon
Owyhee
Ranking of Idaho Counties By Percentage of Pop. that are Black or African American Alone in 2021
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Rank County % of County Population
1 Elmore County 3.1
2 Clark County 2.27
3 Ada County 1.38
4 Power County 1.19
5 Bannock County 1.06
6 Cassia County 1.01
6 Madison County 1.01
7 Twin Falls County 1
8 Canyon County 0.93
9 Owyhee County 0.91
10 Latah County 0.9
11 Fremont County 0.86
12 Minidoka County 0.81
13 Jerome County 0.8
14 Camas County 0.79
15 Boundary County 0.78
16 Bonneville County 0.76
16 Lewis County 0.76
17 Boise County 0.74
18 Shoshone County 0.69
19 Bingham County 0.68
19 Washington County 0.68
20 Blaine County 0.66
21 Clearwater County 0.62
22 Idaho County 0.6
23 Custer County 0.59
24 Benewah County 0.58
24 Gooding County 0.58
25 Lincoln County 0.57
26 Payette County 0.56
27 Nez Perce County 0.51
27 Teton County 0.51
28 Oneida County 0.48
29 Kootenai County 0.46
30 Butte County 0.45
31 Lemhi County 0.44
32 Jefferson County 0.43
32 Valley County 0.43
33 Franklin County 0.42
34 Bear Lake County 0.35
35 Bonner County 0.33
36 Gem County 0.31
37 Caribou County 0.3
38 Adams County 0.28