
Alcester township
- County:
- Union County
- County Seat:
- No
- Area (mi²):
- 35.135
- State:
- South Dakota
Alcester township is located in Union County, South Dakota. Alcester township has a 2025 population of 314. Alcester township is currently growing at a rate of 1.95% annually and its population has increased by 10.56% since the most recent census, which recorded a population of 284 in 2020.
The average household income in Alcester township is $91,763 with a poverty rate of 0%. The median age in Alcester township is 65.8 years: 65.9 years for males, and 57.9 years for females.