Douglas County, South Dakota Cities (2025)

7 cities

City
Rank
2025 Pop.
2020 Pop.
Change
Density
Area (mi²)
Type
Armour17076960.28%7490.94 City
Corsica2552561-0.36%6590.84 City
Delmont31521540%1990.76 City
Old Elm Spring Colony44906.52%500.97 CDP
Milltown531256.9%700.44 CDP
Harrison69712.5%830.11 CDP
New Holland7580%430.12 CDP