Population By Race and Ethnicity in Dewey County, SD in 2019

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2019, the 5,872 population of Dewey County, South Dakota comprised of 259 people who identified as Hispanic (4.41%), and 5,613 people who identified as Non-Hispanic (95.59%).

Race: The American Indian and Alaska Native Alone population was the largest racial group in Dewey County, South Dakota with a population of 4,378 (74.56%); White Alone population was the second largest racial group with a population of 1,190 (20.27%); and Two Or More Races was the third largest racial group with a population of 264 (4.5%).

Ethnicity: The American Indian and Alaska Native Alone - Non Hispanic population was the largest ethnic group in Dewey County, South Dakota in 2019, with a population of 4,195 (71.44%); the second largest ethnic group was White Alone - Non Hispanic with a population of 1,138 (19.38%); and the third largest ethnic group was Two Or More Races - Non Hispanic with a population of 244 (4.16%).

The charts and tables below shows the population and percentage of each racial and ethnicity group in Dewey, South Dakota.

You can find similar information for other South Dakota counties, and for South Dakota.

See this for other years:
Hispanics and Non Hispanics in Dewey County, SD in 2019
Total Population:
Race in Dewey County, SD in 2019
Total Population:
Ethnicity in Dewey County, SD in 2019
Total Population:
Population By Race in Dewey , SD in 2019
Race Population Percentage
Black or African American Alone 26 0.44%
White Alone 1,190 20.27%
American Indian and Alaska Native Alone 4,378 74.56%
Asian Alone 13 0.22%
Native Hawaiian And Pacific Islander Alone 1 0.02%
Two Or More Races 264 4.5%
Population By Ethnicity in Dewey , SD in 2019
Ethnicity Population Percentage
Black or African American Alone - Hispanic 3 0.05%
White Alone - Hispanic 52 0.89%
American Indian and Alaska Native Alone - Hispanic 183 3.12%
Asian Alone - Hispanic 1 0.02%
Native Hawaiian And Pacific Islander Alone - Hispanic 0 0%
Two Or More Races - Hispanic 20 0.34%
Black or African American Alone - Non Hispanic 23 0.39%
White Alone - Non Hispanic 1,138 19.38%
American Indian and Alaska Native Alone - Non Hispanic 4,195 71.44%
Asian Alone - Non Hispanic 12 0.2%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 1 0.02%
Two Or More Races - Non Hispanic 244 4.16%