Liberty township
- County:
- Perkins County
- County Seat:
- No
- Area (mi²):
- 35.806
- State:
- South Dakota
Liberty township is located in Perkins County, South Dakota. Liberty township has a 2026 population of 16. Liberty township is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 16 in 2020.