Mountain Plains CDP, SD Population By Ancestry in 2021 (ACS-5Yrs)
Updated on March 8, 2024.
Based on the US Census ACS-5Yrs estimates, in 2021, among the 294 Mountain Plains CDP, SD population, 94 had German ancestry (31.97%), 82 had Irish ancestry (27.89%), and 70 had Unclassified ancestry (23.81%).
The chart below shows the top 9 ancestry groups, and the table below shows both the number and percentages for all ancestry groups.
You can also see similar information for other South Dakota cities and places, South Dakota counties, and for South Dakota.
Data Source: US Census - ACS 5-Year Estimates (2021).
Mountain Plains CDP, SD Population By Ancestry in 2021
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| Ancestry | Number of Ancestry | Percentage of Population (%) |
|---|---|---|
| German | 94 | 31.97 |
| Irish | 82 | 27.89 |
| Unclassified | 70 | 23.81 |
| Norwegian | 42 | 14.29 |
| English | 41 | 13.95 |
| Finnish | 24 | 8.16 |
| Scotch Irish | 17 | 5.78 |
| Northern European | 11 | 3.74 |
| Danish | 3 | 1.02 |