
Lake Flat township
- County:
- Pennington County
- County Seat:
- No
- Area (mi²):
- 34.431
- State:
- South Dakota
Lake Flat township is located in Pennington County, South Dakota. Lake Flat township has a 2025 population of 34. Lake Flat township is currently growing at a rate of 3.03% annually and its population has increased by 9.68% since the most recent census, which recorded a population of 31 in 2020.
The average household income in Lake Flat township is -$1000.00 Mn with a poverty rate of 0%. The median age in Lake Flat township is 15.1 years: 14.9 years for males, and 25.8 years for females.