Buffalo County, South Dakota Cities (2025)

4 cities

City
Rank
2025 Pop.
2020 Pop.
Change
Density
Area (mi²)
Type
Fort Thompson11,1261,275-0.88%10910.38 CDP
Millerdale Colony2108168%4200.26 CDP
Elvira township346452.22%147.66 Township
Gann Valley415117.14%1900.08 CDP