
Mad River township
- County:
- Champaign County
- County Seat:
- No
- Area (mi²):
- 42.748
- State:
- Ohio
Mad River township is located in Champaign County, Ohio. Mad River township has a 2025 population of 2,790. Mad River township is currently growing at a rate of 0.22% annually and its population has increased by 0.61% since the most recent census, which recorded a population of 2,773 in 2020.
The average household income in Mad River township is $103,425 with a poverty rate of 1.98%. The median age in Mad River township is 43.2 years: 44.3 years for males, and 42.7 years for females.