Ranking of Montana Counties By Percentage of Population that are Non-Hispanic American Indian and Alaska Native in 2019

Updated on June 18, 2025.

Based on the US Census Vintage data estimates, in 2019, among all Montana counties, Big Horn County had the highest percentage of its population who identified their ethnicity as Non-Hispanic American Indian and Alaska Native (63.78%), followed by Glacier County (63.06%), and Roosevelt County (58.78%).

The chart below shows the top 10 counties, and the table below shows the ranking of all Montana 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 Montana Counties By Percentage of Pop. that are Non-Hispanic American Indian and Alaska Native in 2019
Big Horn
Glacier
Roosevelt
Blaine
Rosebud
Hill
Lake
Chouteau
Pondera
Phillips
Ranking of Montana Counties By Percentage of Pop. that are Non-Hispanic American Indian and Alaska Native in 2019
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Rank County % of County Population
1 Big Horn County 63.78
2 Glacier County 63.06
3 Roosevelt County 58.78
4 Blaine County 49.4
5 Rosebud County 36.78
6 Hill County 23.1
7 Lake County 22.67
8 Chouteau County 17.37
9 Pondera County 13.76
10 Phillips County 8.88
11 Valley County 8.55
12 Powell County 5.15
13 Toole County 4.63
14 Cascade County 4.11
15 Yellowstone County 4.03
16 Sanders County 3.52
17 Deer Lodge County 3.22
18 Treasure County 2.73
19 Missoula County 2.39
20 Daniels County 2.25
21 Sheridan County 2.14
22 Richland County 2.07
23 Dawson County 1.99
24 Custer County 1.89
25 Lewis and Clark County 1.87
26 Musselshell County 1.79
27 Mineral County 1.76
28 Silver Bow County 1.74
29 Powder River County 1.72
30 Teton County 1.68
31 Beaverhead County 1.63
31 Jefferson County 1.63
32 Fergus County 1.59
33 Golden Valley County 1.57
33 Wibaux County 1.57
34 Prairie County 1.41
35 Broadwater County 1.32
36 Wheatland County 1.19
37 Carbon County 1.15
38 Lincoln County 1.14
39 McCone County 1.09
40 Flathead County 1.08
41 Judith Basin County 1.05
42 Petroleum County 1.01
43 Sweet Grass County 1
44 Stillwater County 0.99
45 Carter County 0.96
45 Park County 0.96
46 Ravalli County 0.95
47 Fallon County 0.9
47 Granite County 0.9
48 Gallatin County 0.82
49 Liberty County 0.8
50 Meagher County 0.65
51 Madison County 0.61
52 Garfield County 0.47