In 2019, Douglas County, SD had a population of 2.93k people with a median age of 46.7 and a median household income of $58,684. Between 2018 and 2019 the population of Douglas County, SD declined from 2,930 to 2,929, a −0.0341% decrease and its median household income grew from $57,419 to $58,684, a 2.2% increase.
The 5 largest ethnic groups in Douglas County, SD are White (Non-Hispanic) (94.4%), Two+ (Non-Hispanic) (2.87%), American Indian & Alaska Native (Non-Hispanic) (2.12%), White (Hispanic) (0.615%), and Other (Hispanic) (0.0341%). 0% of the households in Douglas County, SD speak a non-English language at home as their primary language.
98.4% of the residents in Douglas County, SD are U.S. citizens.
In 2019, the median property value in Douglas County, SD was $94,400, and the homeownership rate was 79.8%. Most people in Douglas County, SD drove alone to work, and the average commute time was 12.8 minutes. The average car ownership in Douglas County, SD was 3 cars per household.