
Marathon township
- County:
- Lapeer County
- County Seat:
- No
- Area (mi²):
- 33.028
- State:
- Michigan
Marathon township is located in Lapeer County, Michigan. Marathon township has a 2025 population of 4,432. Marathon township is currently growing at a rate of 0.02% annually but its population has decreased by -0.56% since the most recent census, which recorded a population of 4,457 in 2020.
The average household income in Marathon township is $79,412 with a poverty rate of 9.56%. The median age in Marathon township is 47.2 years: 47.7 years for males, and 46.6 years for females.