Ranking of South Dakota Counties By Percentage of Population that are Non-Hispanic American Indian and Alaska Native in 2015
Updated on June 18, 2025.
Based on the US Census Vintage data estimates, in 2015, among all South Dakota counties, Oglala Lakota County had the highest percentage of its population who identified their ethnicity as Non-Hispanic American Indian and Alaska Native (90.9%), followed by Todd County (85.19%), and Buffalo County (79.66%).
The chart below shows the top 10 counties, and the table below shows the ranking of all South Dakota 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: South Dakota Census Vintage Data Topic List.
Data Source: US Census Bureau (Vintage).
See this for other years:
Ranking of South Dakota Counties By Percentage of Pop. that are
Non-Hispanic American Indian and Alaska Native in 2015
25
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| Rank | County | % of County Population |
|---|---|---|
| 1 | Oglala Lakota County | 90.9 |
| 2 | Todd County | 85.19 |
| 3 | Buffalo County | 79.66 |
| 4 | Dewey County | 72.05 |
| 5 | Ziebach County | 69.2 |
| 6 | Corson County | 62.61 |
| 7 | Bennett County | 58.44 |
| 8 | Mellette County | 52.69 |
| 9 | Jackson County | 51.36 |
| 10 | Lyman County | 37.52 |
| 11 | Roberts County | 35.85 |
| 12 | Charles Mix County | 30.6 |
| 13 | Tripp County | 13.59 |
| 14 | Moody County | 12.94 |
| 15 | Walworth County | 12.88 |
| 16 | Hughes County | 10.07 |
| 17 | Day County | 9.14 |
| 18 | Brule County | 8.9 |
| 18 | Pennington County | 8.9 |
| 19 | Hyde County | 8.44 |
| 20 | Bon Homme County | 7.39 |
| 21 | Gregory County | 7.37 |
| 22 | Stanley County | 6.85 |
| 23 | Marshall County | 6.69 |
| 24 | Fall River County | 6.01 |
| 25 | Custer County | 3.39 |
| 26 | Brown County | 3.12 |
| 27 | Yankton County | 2.77 |
| 28 | Clay County | 2.76 |
| 29 | Davison County | 2.65 |
| 30 | Sully County | 2.64 |
| 31 | Meade County | 2.54 |
| 32 | Douglas County | 2.34 |
| 32 | Minnehaha County | 2.34 |
| 33 | Lawrence County | 2.04 |
| 34 | Codington County | 2.01 |
| 35 | Jones County | 1.96 |
| 36 | Perkins County | 1.94 |
| 37 | Aurora County | 1.93 |
| 38 | Potter County | 1.87 |
| 39 | Haakon County | 1.84 |
| 40 | Harding County | 1.81 |
| 41 | Butte County | 1.55 |
| 42 | Spink County | 1.45 |
| 43 | Brookings County | 1.04 |
| 44 | Beadle County | 0.99 |
| 45 | Lake County | 0.85 |
| 46 | Grant County | 0.83 |
| 47 | Hutchinson County | 0.8 |
| 48 | Campbell County | 0.78 |
| 49 | Kingsbury County | 0.75 |
| 50 | Edmunds County | 0.73 |
| 51 | McCook County | 0.71 |
| 52 | Turner County | 0.58 |
| 52 | Union County | 0.58 |
| 53 | Jerauld County | 0.54 |
| 54 | Lincoln County | 0.48 |
| 55 | Sanborn County | 0.47 |
| 56 | Deuel County | 0.46 |
| 57 | Hamlin County | 0.45 |
| 58 | Hand County | 0.33 |
| 59 | Hanson County | 0.3 |
| 60 | Miner County | 0.27 |
| 61 | Faulk County | 0.17 |
| 61 | McPherson County | 0.17 |
| 62 | Clark County | 0.11 |
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