Population By Race and Ethnicity in Dewey County, SD in 2010

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2010, the 5,325 population of Dewey County, South Dakota comprised of 105 people who identified as Hispanic (1.97%), and 5,220 people who identified as Non-Hispanic (98.03%).

Race: The American Indian and Alaska Native Alone population was the largest racial group in Dewey County, South Dakota with a population of 4,020 (75.49%); White Alone population was the second largest racial group with a population of 1,122 (21.07%); and Two Or More Races was the third largest racial group with a population of 170 (3.19%).

Ethnicity: The American Indian and Alaska Native Alone - Non Hispanic population was the largest ethnic group in Dewey County, South Dakota in 2010, with a population of 3,940 (73.99%); the second largest ethnic group was White Alone - Non Hispanic with a population of 1,114 (20.92%); and the third largest ethnic group was Two Or More Races - Non Hispanic with a population of 154 (2.89%).

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 2010
Total Population:
Race in Dewey County, SD in 2010
Total Population:
Ethnicity in Dewey County, SD in 2010
Total Population:
Population By Race in Dewey , SD in 2010
Race Population Percentage
Black or African American Alone 5 0.09%
White Alone 1,122 21.07%
American Indian and Alaska Native Alone 4,020 75.49%
Asian Alone 8 0.15%
Native Hawaiian And Pacific Islander Alone 0 0%
Two Or More Races 170 3.19%
Population By Ethnicity in Dewey , SD in 2010
Ethnicity Population Percentage
Black or African American Alone - Hispanic 0 0%
White Alone - Hispanic 8 0.15%
American Indian and Alaska Native Alone - Hispanic 80 1.5%
Asian Alone - Hispanic 1 0.02%
Native Hawaiian And Pacific Islander Alone - Hispanic 0 0%
Two Or More Races - Hispanic 16 0.3%
Black or African American Alone - Non Hispanic 5 0.09%
White Alone - Non Hispanic 1,114 20.92%
American Indian and Alaska Native Alone - Non Hispanic 3,940 73.99%
Asian Alone - Non Hispanic 7 0.13%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 0 0%
Two Or More Races - Non Hispanic 154 2.89%