Dewey, South Dakota Voting-age Population By Ethnicity in Census 2020
Updated on February 22, 2026.
According to the data from the US 2020 decennial Census, in April 2020, among Dewey, SD population of 3,595 people, 74.97% of them (2,695 people) identified their ethnicity as Non-Hispanic - American Indian and Alaska Native Alone, 20.11% of them (723 people) identified their ethnicity as Non-Hispanic - White Alone, and 3.34% of them (120 people) identified their ethnicity as Non-Hispanic - Two Or More Races.
The first chart below shows the voting-age population by ethnicity and the second chart shows the percentage of the voting-age population for each ethnicity. 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 Ethnicity in Census 2020
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| Ethnicity | Voting-age Population | % of County Voting-age Population |
|---|---|---|
| Non-Hispanic - American Indian and Alaska Native Alone | 2695 | 74.97 |
| Non-Hispanic - White Alone | 723 | 20.11 |
| Non-Hispanic - Two Or More Races | 120 | 3.34 |
| Hispanic - American Indian and Alaska Native Alone | 20 | 0.56 |
| Hispanic - Some Other Race Alone | 10 | 0.28 |
| Non-Hispanic - Black or African American Alone | 9 | 0.25 |
| Hispanic - White Alone | 6 | 0.17 |
| Non-Hispanic - Asian Alone | 6 | 0.17 |
| Non-Hispanic - Some Other Race Alone | 4 | 0.11 |
| Hispanic - Two Or More Races | 2 | 0.06 |
| Hispanic - Black or African American Alone | 0 | 0.00 |
| Hispanic - Asian Alone | 0 | 0.00 |
| Non-Hispanic - Native Hawaiian And Pacific Islander Alone | 0 | 0.00 |
| Hispanic - Native Hawaiian And Pacific Islander Alone | 0 | 0.00 |
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