
South Harbor township
- County:
- Mille Lacs County
- County Seat:
- No
- Area (mi²):
- 21.595
- State:
- Minnesota
South Harbor township is located in Mille Lacs County, Minnesota. South Harbor township has a 2025 population of 890. South Harbor township is currently growing at a rate of 0.34% annually and its population has increased by 4.09% since the most recent census, which recorded a population of 855 in 2020.
The average household income in South Harbor township is $82,405 with a poverty rate of 15.05%. The median age in South Harbor township is 51.6 years: 50.5 years for males, and 53.6 years for females.