Ranking of Idaho Counties By Percentage of Population Aged 25 years and above with an Educational attainment of Bachelors or Higher in 2021 (ACS-5Yrs)

Updated on September 3, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, the percentage of the population of Idaho (aged 25 years and above) who had an educational attainment of Bachelors or Higher was 29.13%. Among all Idaho counties, Teton County had the highest percentage of its population (aged 25 years and above) with an educational attainment of Bachelors or Higher (46.64%), followed by Latah County (43.92%), and Blaine County (42.45%).

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.

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

Ranking of Idaho Counties By Percentage of Population (Aged 25yrs+) with an Educational Attainment of Bachelors or Higher in 2021
Teton County
Latah County
Blaine County
Ada County
Madison County
Bonneville County
Valley County
Bannock County
Boise County
Custer County
Ranking of Idaho Counties By Percentage of Population (Aged 25yrs+) with an Educational Attainment of Bachelors or Higher in 2021
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Rank County Percentage of Population (Aged 25yrs+) (%)
1 Teton County 46.64
2 Latah County 43.92
3 Blaine County 42.45
4 Ada County 40.74
5 Madison County 36.34
6 Bonneville County 31.29
7 Valley County 29.50
8 Bannock County 28.95
9 Boise County 27.78
10 Custer County 27.49
11 Bonner County 26.59
12 Kootenai County 26.47
13 Nez Perce County 25.42
14 Jefferson County 25.20
15 Twin Falls County 23.48
16 Camas County 23.40
17 Oneida County 22.48
18 Idaho County 21.97
19 Lemhi County 21.91
20 Gem County 21.29
21 Fremont County 21.27
22 Canyon County 20.71
23 Bingham County 19.57
24 Elmore County 19.54
25 Clark County 19.23
26 Bear Lake County 19.09
27 Lewis County 18.94
28 Caribou County 18.89
29 Cassia County 18.72
30 Adams County 18.50
30 Payette County 18.50
31 Benewah County 18.21
32 Clearwater County 18.08
33 Washington County 17.48
34 Boundary County 16.34
35 Franklin County 15.52
36 Gooding County 15.46
37 Butte County 14.68
38 Power County 13.81
39 Jerome County 13.60
40 Owyhee County 13.29
41 Minidoka County 12.94
42 Lincoln County 11.77
43 Shoshone County 11.27