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 2026 population of 228. Afton township is currently growing at a rate of 1.79% annually and its population has increased by 6.54% since the most recent census, which recorded a population of 214 in 2020.
The median household income in Afton township is $88,333 with a poverty rate of 0%. The median age in Afton township is 59.6 years: 66.8 years for males, and 59.2 years for females. For every 100 females there are 51.8 males.