
Isle Harbor township
- County:
- Mille Lacs County
- County Seat:
- No
- Area (mi²):
- 26.503
- State:
- Minnesota
Isle Harbor township is located in Mille Lacs County, Minnesota. Isle Harbor township has a 2025 population of 573. Isle Harbor township is currently growing at a rate of 0.53% annually and its population has increased by 5.14% since the most recent census, which recorded a population of 545 in 2020.
The average household income in Isle Harbor township is $89,015 with a poverty rate of 8.99%. The median age in Isle Harbor township is 55.2 years: 56.6 years for males, and 53.3 years for females.