
Lynn township
- County:
- Day County
- County Seat:
- No
- Area (mi²):
- 35.289
- State:
- South Dakota
Lynn township is located in Day County, South Dakota. Lynn township has a 2025 population of 34. Lynn 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 Lynn township is $98,086 with a poverty rate of 0%. The median age in Lynn township is 49.7 years: 45.6 years for males, and 50 years for females.