Ranking of Montana Counties By Percentage of American Indian and Alaska Native Alone 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 Montana American Indian and Alaska Native Alone population (aged 25 years and above) who had an educational attainment of Less than High School Diploma was 14.85%. Among all Montana counties, Liberty County had the highest percentage of its American Indian and Alaska Native Alone population (aged 25 years and above) with an educational attainment of Less than High School Diploma (100.00%), followed by Broadwater County (45.83%), and Wheatland County (42.11%).

The chart below shows the top 10 Montana counties, and the table below shows the ranking of all Montana 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 Montana Counties By Percentage of American Indian and Alaska Native Alone Population (Aged 25yrs+) with an Educational Attainment of Less than High School Diploma in 2021
Liberty County
Broadwater County
Wheatland County
Granite County
Ravalli County
Jefferson County
Cascade County
Mineral County
Powell County
Stillwater County
Ranking of Montana Counties By Percentage of American Indian and Alaska Native Alone 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 Liberty County 100.00
2 Broadwater County 45.83
3 Wheatland County 42.11
4 Granite County 31.82
5 Ravalli County 30.20
6 Jefferson County 28.09
7 Cascade County 26.99
8 Mineral County 26.00
9 Powell County 25.96
10 Stillwater County 24.29
11 Chouteau County 23.64
12 Sanders County 22.92
13 Silver Bow County 21.61
14 Valley County 21.48
15 Hill County 20.25
16 Pondera County 18.16
17 Lewis and Clark County 17.79
18 Rosebud County 16.56
19 Dawson County 16.05
20 Sheridan County 15.79
21 Glacier County 14.79
22 Big Horn County 14.70
23 Roosevelt County 14.47
24 Lake County 14.25
25 Blaine County 13.24
26 Flathead County 12.01
27 Toole County 10.75
28 Daniels County 10.53
29 Carbon County 10.00
30 Yellowstone County 8.59
31 Gallatin County 8.54
32 Fergus County 7.80
33 Teton County 7.69
34 Deer Lodge County 6.80
35 Missoula County 6.30
36 Lincoln County 6.25
37 Meagher County 5.26
38 Phillips County 3.42
39 Musselshell County 0.94
40 Beaverhead County 0.00
40 Custer County 0.00
40 Fallon County 0.00
40 Golden Valley County 0.00
40 Judith Basin County 0.00
40 McCone County 0.00
40 Madison County 0.00
40 Park County 0.00
40 Powder River County 0.00
40 Prairie County 0.00
40 Richland County 0.00
40 Sweet Grass County 0.00
40 Wibaux County 0.00