Lake Creek township
- County:
- Pennington County
- County Seat:
- No
- Area (mi²):
- 35.851
- State:
- South Dakota
Lake Creek township is located in Pennington County, South Dakota. Lake Creek township has a 2026 population of 40. Lake Creek township is currently declining at a rate of -2.44% annually and its population has decreased by 0% since the most recent census, which recorded a population of 40 in 2020.