
Big Spring township
- County:
- Seneca County
- County Seat:
- No
- Area (mi²):
- 36.419
- State:
- Ohio
Big Spring township is located in Seneca County, Ohio. Big Spring township has a 2025 population of 1,675. Big Spring township is currently growing at a rate of 0.18% annually but its population has decreased by -0.53% since the most recent census, which recorded a population of 1,684 in 2020.
The average household income in Big Spring township is $75,903 with a poverty rate of 7.31%. The median age in Big Spring township is 43.3 years: 44.2 years for males, and 40.6 years for females.