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 35 . Butler is currently declining at a rate of -2.78% annually and its population has decreased by -2.78% since the most recent census, which recorded a population of 36 in 2020.
The median age in Butler is 14.4 years: 14.6 years for males, and 0 years for females. For every 100 females there are 116.7 males.