Foster Township is a township in Big Stone County, Minnesota, United States. The population was estimated at 110 in the 2020 census. Situated in the southwest region of the county, the township has a western boundary with South Dakota. Big Stone Lake and the Little Minnesota River drain it.
Geography
According to the United States Census Bureau, the township has a total area of , of which is land and (9.43%) is water.
Unincorporated towns
- Bonanza Grove at
- Foster at
- Yankeetown at
(This list is based on USGS data and may include former settlements.)
Major highway
- 25px Minnesota State Highway 7
Lakes
- Big Stone Lake (northwest quarter)
Adjacent townships
- Browns Valley Township (north)
- Toqua Township (northeast)
- Prior Township (east)
Cemeteries
The township contains two cemeteries, Holden and Lakeside.
Demographics
At the 2000 census,