Ranking of Montana Counties By Percentage of Population that are American Indian and Alaska Native Alone in 2021
Updated on June 18, 2025.
Based on the US Census Vintage data estimates, in 2021, among all Montana counties, Big Horn County had the highest percentage of its population who identified their race as American Indian and Alaska Native Alone (66.64%), followed by Glacier County (65.19%), and Roosevelt County (60.76%).
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.
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Related Topics: Montana Census Vintage Data Topic List.
Data Source: US Census Bureau (Vintage).
See this for other years:
Ranking of Montana Counties By Percentage of Pop. that are
American Indian and Alaska Native Alone in 2021
Items per page:
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| Rank | County | % of County Population |
|---|---|---|
| 1 | Big Horn County | 66.64 |
| 2 | Glacier County | 65.19 |
| 3 | Roosevelt County | 60.76 |
| 4 | Blaine County | 51.42 |
| 5 | Rosebud County | 39.15 |
| 6 | Hill County | 24.48 |
| 7 | Lake County | 23.7 |
| 8 | Chouteau County | 18.22 |
| 9 | Pondera County | 15.16 |
| 10 | Phillips County | 9.41 |
| 11 | Valley County | 8.74 |
| 12 | Powell County | 5.94 |
| 13 | Toole County | 5.83 |
| 14 | Yellowstone County | 5.16 |
| 15 | Cascade County | 4.86 |
| 16 | Sanders County | 3.86 |
| 17 | Daniels County | 3.11 |
| 18 | Deer Lodge County | 2.99 |
| 19 | Treasure County | 2.87 |
| 20 | Missoula County | 2.83 |
| 21 | Richland County | 2.65 |
| 22 | Custer County | 2.61 |
| 23 | Golden Valley County | 2.45 |
| 24 | Wheatland County | 2.35 |
| 25 | Dawson County | 2.34 |
| 26 | Silver Bow County | 2.32 |
| 27 | Sheridan County | 2.27 |
| 28 | Beaverhead County | 2.16 |
| 29 | Lewis and Clark County | 2.15 |
| 30 | Powder River County | 2.05 |
| 31 | Mineral County | 2.02 |
| 32 | Jefferson County | 1.99 |
| 33 | Musselshell County | 1.96 |
| 34 | Petroleum County | 1.93 |
| 35 | Teton County | 1.8 |
| 36 | Fergus County | 1.7 |
| 37 | Broadwater County | 1.53 |
| 38 | Carbon County | 1.5 |
| 39 | Stillwater County | 1.39 |
| 40 | Flathead County | 1.3 |
| 41 | Lincoln County | 1.29 |
| 42 | Prairie County | 1.28 |
| 42 | Wibaux County | 1.28 |
| 43 | Sweet Grass County | 1.27 |
| 44 | Park County | 1.24 |
| 45 | Ravalli County | 1.15 |
| 46 | Liberty County | 1.14 |
| 47 | Judith Basin County | 1.13 |
| 48 | McCone County | 1.11 |
| 49 | Fallon County | 1.1 |
| 50 | Gallatin County | 1.08 |
| 51 | Carter County | 1.06 |
| 52 | Granite County | 0.95 |
| 53 | Meagher County | 0.92 |
| 54 | Garfield County | 0.83 |
| 55 | Madison County | 0.76 |