Butler
- County:
- Day County
- County Seat:
- No
- Area (mi²):
- 34.866
- State:
- South Dakota
Butler is located in Day County, South Dakota. Butler has a 2025 population of 42. Butler is currently growing at a rate of 2.44% annually and its population has increased by 7.69% since the most recent census, which recorded a population of 39 in 2020.
The median age in Butler is 14.4 years: 14.6 years for males, and 0 years for females.