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 2026 population of 243. Thunder Lake township is currently declining at a rate of 0% annually and its population has increased by 3.85% since the most recent census, which recorded a population of 234 in 2020.
The median household income in Thunder Lake township is $77,188 with a poverty rate of 11.76%. The median age in Thunder Lake township is 67.9 years: 67 years for males, and 68.3 years for females. For every 100 females there are 112.5 males.