Ranking of South Dakota Counties By Percentage of Population with Unclassified Ancestry in 2021
Updated on April 16, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, there were 172.50K people in South Dakota with Unclassified ancestry (19.56% of South Dakota population). Among all South Dakota counties, Potter County had the highest percentage of its population with Unclassified ancestry (31.46%), followed by Hanson County (31.35%), and Yankton County (29.79%).
The chart and table below shows the top 10 counties with high percentage of its population having Unclassified ancestry.
You can see similar information for other states and for other ancestry groups in South Dakota.
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Related Topics: South Dakota ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census Bureau.
Ranking of South Dakota Counties By Percentage of Population with Unclassified Ancestry in 2021
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| Rank | County | Percentage of Pop. (%) |
|---|---|---|
| 1 | Potter County | 31.46 |
| 2 | Hanson County | 31.35 |
| 3 | Yankton County | 29.79 |
| 4 | Union County | 26.69 |
| 5 | Brule County | 25.75 |
| 6 | Davison County | 25.19 |
| 7 | Hand County | 25.06 |
| 8 | Miner County | 24.95 |
| 9 | Meade County | 24.85 |
| 10 | Harding County | 24.68 |
| 11 | Butte County | 24.28 |
| 12 | Clay County | 24.04 |
| 13 | Codington County | 23.99 |
| 14 | Hamlin County | 23.96 |
| 15 | Gregory County | 23.95 |
| 16 | Stanley County | 23.90 |
| 17 | Lincoln County | 23.73 |
| 18 | Turner County | 23.14 |
| 19 | Hughes County | 22.96 |
| 20 | Sully County | 21.89 |
| 21 | Spink County | 21.19 |
| 22 | Brown County | 20.73 |
| 23 | Pennington County | 20.63 |
| 24 | Brookings County | 20.43 |
| 24 | Lawrence County | 20.43 |
| 25 | Douglas County | 19.98 |
| 26 | Beadle County | 19.94 |
| 27 | Clark County | 19.60 |
| 28 | Deuel County | 19.59 |
| 29 | Tripp County | 19.54 |
| 30 | Bon Homme County | 19.27 |
| 31 | McCook County | 19.12 |
| 32 | Custer County | 18.85 |
| 33 | Walworth County | 18.73 |
| 34 | Hyde County | 18.32 |
| 35 | Edmunds County | 18.30 |
| 36 | Minnehaha County | 17.77 |
| 37 | McPherson County | 17.55 |
| 38 | Kingsbury County | 17.23 |
| 39 | Aurora County | 16.38 |
| 40 | Marshall County | 16.24 |
| 41 | Hutchinson County | 15.80 |
| 42 | Jones County | 15.07 |
| 43 | Moody County | 14.52 |
| 44 | Lake County | 14.43 |
| 45 | Grant County | 14.21 |
| 46 | Faulk County | 13.91 |
| 47 | Sanborn County | 13.71 |
| 48 | Perkins County | 13.10 |
| 49 | Fall River County | 12.34 |
| 50 | Charles Mix County | 11.62 |
| 51 | Day County | 11.46 |
| 52 | Jerauld County | 10.49 |
| 53 | Roberts County | 10.45 |
| 54 | Lyman County | 9.40 |
| 55 | Mellette County | 9.34 |
| 56 | Campbell County | 8.85 |
| 57 | Haakon County | 8.78 |
| 58 | Bennett County | 6.92 |
| 59 | Jackson County | 6.00 |
| 60 | Oglala Lakota County | 5.77 |
| 61 | Buffalo County | 5.17 |
| 62 | Dewey County | 3.63 |
| 63 | Corson County | 2.90 |
| 64 | Todd County | 2.75 |
| 65 | Ziebach County | 1.01 |