Custer County, SD Population By Ancestry in 2021 (ACS-5Yrs)
Updated on March 3, 2024.
Based on the US Census ACS-5Yrs estimates, in 2021, among the 8.36K Custer County, SD population, 2.92K had German ancestry (34.90%), 1.58K had Unclassified ancestry (18.85%), and 1.27K had Irish ancestry (15.23%).
The chart below shows the top 10 ancestry groups, and the table below shows both the number and percentages for all ancestry groups.
You can see similar information for other South Dakota counties, and for South Dakota.
Data Source: US Census - ACS 5-Year Estimates (2021).
Custer County, SD Population By Ancestry in 2021
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| Ancestry | Number of Ancestry | Percentage of Population (%) |
|---|---|---|
| German | 2918 | 34.90 |
| Unclassified | 1576 | 18.85 |
| Irish | 1273 | 15.23 |
| Other Groups | 1048 | 12.54 |
| English | 855 | 10.23 |
| Norwegian | 817 | 9.77 |
| Swedish | 402 | 4.81 |
| Dutch | 390 | 4.67 |
| French (except Basque) | 293 | 3.51 |
| American | 270 | 3.23 |
| European | 262 | 3.13 |
| Danish | 249 | 2.98 |
| Scottish | 195 | 2.33 |
| Polish | 186 | 2.23 |
| Czech | 135 | 1.62 |
| Russian | 134 | 1.60 |
| Italian | 126 | 1.51 |
| Finnish | 118 | 1.41 |
| Scandinavian | 105 | 1.26 |
| Canadian | 77 | 0.92 |
| British | 55 | 0.66 |
| Hungarian | 52 | 0.62 |
| Scotch Irish | 38 | 0.46 |
| Swiss | 33 | 0.40 |
| Welsh | 31 | 0.37 |
| Portuguese | 20 | 0.24 |
| Eastern European | 14 | 0.17 |
| French Canadian | 13 | 0.16 |
| Czechoslovakian | 10 | 0.12 |
| Austrian | 8 | 0.10 |
| Ukrainian | 6 | 0.07 |
| Basque | 5 | 0.06 |
| Slavic | 4 | 0.05 |
| Subsaharan African | 2 | 0.02 |
| Iranian | 1 | 0.01 |