Ranking of Idaho Counties By Percentage of Two Or More Races Population Aged 25 years and above with an Educational attainment of Less than High School Diploma in 2021 (ACS-5Yrs)

Updated on September 5, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, the percentage of the Idaho Two Or More Races population (aged 25 years and above) who had an educational attainment of Less than High School Diploma was 15.03%. Among all Idaho counties, Clark County had the highest percentage of its Two Or More Races population (aged 25 years and above) with an educational attainment of Less than High School Diploma (81.25%), followed by Gooding County (55.12%), and Jerome County (50.18%).

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

You can see similar information for other educational attainments, and for other races and ethnicities.

You can also see similar information for other states and for the United States.

Ranking of Idaho Counties By Percentage of Two Or More Races Population (Aged 25yrs+) with an Educational Attainment of Less than High School Diploma in 2021
Clark County
Gooding County
Jerome County
Fremont County
Payette County
Minidoka County
Blaine County
Owyhee County
Oneida County
Washington County
Ranking of Idaho Counties By Percentage of Two Or More Races Population (Aged 25yrs+) with an Educational Attainment of Less than High School Diploma in 2021
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Rank County Percentage of Population (Aged 25yrs+) (%)
1 Clark County 81.25
2 Gooding County 55.12
3 Jerome County 50.18
4 Fremont County 41.29
5 Payette County 36.50
6 Minidoka County 34.43
7 Blaine County 34.29
8 Owyhee County 32.72
9 Oneida County 29.85
10 Washington County 29.51
11 Valley County 29.22
12 Butte County 29.17
13 Elmore County 28.95
14 Bingham County 27.84
15 Lincoln County 22.12
16 Gem County 20.02
17 Teton County 18.18
18 Cassia County 17.14
19 Camas County 17.07
20 Twin Falls County 16.71
21 Lewis County 16.55
22 Jefferson County 15.64
23 Power County 14.97
24 Canyon County 14.03
25 Lemhi County 12.89
26 Benewah County 11.20
27 Shoshone County 11.14
28 Bannock County 10.31
29 Madison County 9.89
30 Bonner County 9.60
31 Caribou County 9.57
32 Boise County 9.35
33 Ada County 8.94
34 Franklin County 8.57
35 Latah County 8.51
36 Bonneville County 8.01
37 Boundary County 7.51
38 Clearwater County 6.98
39 Nez Perce County 4.87
40 Kootenai County 4.02
41 Idaho County 3.77
42 Custer County 2.37
43 Adams County 0.00
43 Bear Lake County 0.00