
Tiffin township
- County:
- Seneca County
- County Seat:
- No
- Area (mi²):
- 36.355
- State:
- Ohio
Tiffin township is located in Seneca County, Ohio. Tiffin township has a 2025 population of 1,596. Tiffin township is currently growing at a rate of 0.57% annually and its population has increased by 1.46% since the most recent census, which recorded a population of 1,573 in 2020.
The average household income in Tiffin township is $108,380 with a poverty rate of 9.49%. The median age in Tiffin township is 38.9 years: 32.6 years for males, and 43.9 years for females.