Dewey, South Dakota Voting-age Population By Race in Census 2020
Updated on February 22, 2026.
According to the data from the US 2020 decennial Census, in April 2020, among Dewey, SD voting-age population of 3,595 people, 75.52% of them (2,715 people) identified their race as American Indian and Alaska Native Alone, 20.28% of them (729 people) identified their race as White Alone, and 3.39% of them (122 people) identified their race as Two Or More Races.
The first chart below shows the voting-age population by race and the second chart shows the percentage of the the Dewey, SD voting-age population for each race. You can also find the information in a table below.
You can see similar information for other South Dakota counties and also for the state of South Dakota.
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Data Source: US Census Bureau, 2020 Census.
Dewey, SD Voting-age Population By Race in Census 2020
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| Race | Voting-age Population | % of County Voting-age Population |
|---|---|---|
| Black or African American Alone | 9 | 0.25 |
| White Alone | 729 | 20.28 |
| American Indian and Alaska Native Alone | 2715 | 75.52 |
| Asian Alone | 6 | 0.17 |
| Native Hawaiian And Pacific Islander Alone | 0 | 0.00 |
| Some Other Race Alone | 14 | 0.39 |
| Two Or More Races | 122 | 3.39 |
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