Douglas County's 2026 population is estimated at 2,859, reflecting a 0.18% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Douglas County is the 48th largest county in South Dakota. The 2010 population was 2,991 and has grown -4.41% since 2010.
Data after 2023 is projected based on recent change
Overall: 42 years
Female: 45 years
Male: 40.8 years
There are 2,106 adults, (693 of whom are seniors) in Douglas County.
Female: 1,415 (50%)
Male: 1,413 (50%)
The racial composition of Douglas County includes 92.22% White, and smaller percentages for Native American, other race, Black or African American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 2,608 | 92.22% |
| Two or more races | 107 | 3.78% |
| Native American | 64 | 2.26% |
| Other race | 31 | 1.1% |
| Black or African American | 18 | 0.64% |
Douglas County 's average per capita income is $50,238. Household income levels show a median of $86,442. The poverty rate stands at 11.05%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $107,009 | - |
| Families | $104,063 | $125,936 |
| Households | $86,442 | $107,200 |
| Non Families | $32,039 | $61,195 |
Average Income
Median Household Income
Poverty Rate