In 2020, Corson County, SD had a population of 4.11k people with a median age of 28.1 and a median household income of $36,705. Between 2019 and 2020 the population of Corson County, SD declined from 4,150 to 4,106, a −1.06% decrease and its median household income grew from $35,759 to $36,705, a 2.65% increase.
The 5 largest ethnic groups in Corson County, SD are American Indian & Alaska Native (Non-Hispanic) (69.4%), White (Non-Hispanic) (28.6%), Two+ (Non-Hispanic) (1.34%), American Indian & Alaska Native (Hispanic) (0.268%), and Black or African American (Non-Hispanic) (0.244%).
None of the households in Corson County, SD reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
100% of the residents in Corson County, SD are U.S. citizens.
In 2020, the median property value in Corson County, SD was $55,600, and the homeownership rate was 55.6%.
Most people in Corson County, SD drove alone to work, and the average commute time was 22.2 minutes. The average car ownership in Corson County, SD was 2 cars per household.
Corson County, SD borders Adams County, ND, Emmons County, ND, Sioux County, ND, Campbell County, SD, Dewey County, SD, Perkins County, SD, Walworth County, SD, and Ziebach County, SD.