
Prairie township
- County:
- Union County
- County Seat:
- No
- Area (mi²):
- 34.665
- State:
- South Dakota
Prairie township is located in Union County, South Dakota. Prairie township has a 2025 population of 259. Prairie township is currently growing at a rate of 1.97% annually and its population has increased by 10.21% since the most recent census, which recorded a population of 235 in 2020.
The average household income in Prairie township is $51,096 with a poverty rate of 24%. The median age in Prairie township is 63.1 years: 27.9 years for males, and 65.3 years for females.