
Thunder Lake township
- County:
- Cass County
- County Seat:
- No
- Area (mi²):
- 32.372
- State:
- Minnesota
Thunder Lake township is located in Cass County, Minnesota. Thunder Lake township has a 2025 population of 242. Thunder Lake township is currently growing at a rate of 0.41% annually and its population has increased by 4.76% since the most recent census, which recorded a population of 231 in 2020.
The average household income in Thunder Lake township is $90,655 with a poverty rate of 7.14%. The median age in Thunder Lake township is 66.9 years: 65.8 years for males, and 69.8 years for females.