Lake township
- County:
- Codington County
- County Seat:
- No
- Area (mi²):
- 20.646
- State:
- South Dakota
Lake township is located in Codington County, South Dakota. Lake township has a 2026 population of 669. Lake township is currently growing at a rate of 1.06% annually and its population has increased by 1.83% since the most recent census, which recorded a population of 657 in 2020.
The median household income in Lake township is $106,830 with a poverty rate of 8.58%. The median age in Lake township is 34.9 years: 34.9 years for males, and 34 years for females. For every 100 females there are 103.1 males.