
Walnut Grove township
- County:
- Douglas County
- County Seat:
- No
- Area (mi²):
- 28.984
- State:
- South Dakota
Walnut Grove township is located in Douglas County, South Dakota. Walnut Grove township has a 2025 population of 113. Walnut Grove township is currently growing at a rate of 1.8% annually and its population has increased by 2.73% since the most recent census, which recorded a population of 110 in 2020.
The average household income in Walnut Grove township is $123,284 with a poverty rate of 0%. The median age in Walnut Grove township is 29.1 years: 32.5 years for males, and 24.1 years for females.