
Afton township
- County:
- Brookings County
- County Seat:
- No
- Area (mi²):
- 35.477
- State:
- South Dakota
Afton township is located in Brookings County, South Dakota. Afton township has a 2025 population of 227. Afton township is currently growing at a rate of 0.89% annually and its population has increased by 6.57% since the most recent census, which recorded a population of 213 in 2020.
The average household income in Afton township is $142,722 with a poverty rate of 0%. The median age in Afton township is 51.9 years: 51.8 years for males, and 59.1 years for females.