Ranking of Montana Counties By Percentage of Population that are Non-Hispanic American Indian and Alaska Native in 2018
Updated on June 18, 2025.
Based on the US Census Vintage data estimates, in 2018, 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 (63.69%), followed by Glacier County (63.05%), and Roosevelt County (58.81%).
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
Non-Hispanic American Indian and Alaska Native in 2018
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| Rank | County | % of County Population |
|---|---|---|
| 1 | Big Horn County | 63.69 |
| 2 | Glacier County | 63.05 |
| 3 | Roosevelt County | 58.81 |
| 4 | Blaine County | 49.36 |
| 5 | Rosebud County | 36.71 |
| 6 | Hill County | 22.75 |
| 7 | Lake County | 22.66 |
| 8 | Chouteau County | 17.47 |
| 9 | Pondera County | 13.65 |
| 10 | Phillips County | 8.77 |
| 11 | Valley County | 8.72 |
| 12 | Powell County | 5.06 |
| 13 | Toole County | 4.68 |
| 14 | Cascade County | 4.25 |
| 15 | Yellowstone County | 4.01 |
| 16 | Sanders County | 3.49 |
| 17 | Deer Lodge County | 3.27 |
| 18 | Treasure County | 2.55 |
| 19 | Daniels County | 2.46 |
| 20 | Missoula County | 2.35 |
| 21 | Richland County | 1.99 |
| 22 | Dawson County | 1.98 |
| 23 | Custer County | 1.97 |
| 24 | Sheridan County | 1.95 |
| 25 | Lewis and Clark County | 1.82 |
| 26 | Mineral County | 1.76 |
| 27 | Silver Bow County | 1.74 |
| 28 | Golden Valley County | 1.7 |
| 29 | Powder River County | 1.68 |
| 30 | Musselshell County | 1.67 |
| 31 | Beaverhead County | 1.66 |
| 32 | Jefferson County | 1.58 |
| 33 | Teton County | 1.52 |
| 34 | Broadwater County | 1.49 |
| 35 | Fergus County | 1.48 |
| 36 | Wibaux County | 1.36 |
| 37 | Prairie County | 1.23 |
| 38 | Lincoln County | 1.12 |
| 39 | Flathead County | 1.1 |
| 40 | Carbon County | 1.09 |
| 40 | McCone County | 1.09 |
| 41 | Judith Basin County | 1.08 |
| 42 | Sweet Grass County | 1 |
| 43 | Stillwater County | 0.98 |
| 44 | Petroleum County | 0.97 |
| 44 | Wheatland County | 0.97 |
| 45 | Ravalli County | 0.95 |
| 46 | Park County | 0.93 |
| 47 | Carter County | 0.9 |
| 48 | Fallon County | 0.86 |
| 49 | Gallatin County | 0.82 |
| 50 | Granite County | 0.78 |
| 51 | Liberty County | 0.74 |
| 52 | Meagher County | 0.65 |
| 53 | Madison County | 0.62 |
| 54 | Garfield County | 0.48 |