
Tiffin township
- County:
- Seneca County
- County Seat:
- No
- Area (mi²):
- 51.184
- State:
- Ohio
Tiffin township is located in Seneca County, Ohio. Tiffin township has a 2025 population of 5,345. Tiffin township is currently growing at a rate of 0.89% annually and its population has increased by 2.69% since the most recent census, which recorded a population of 5,205 in 2020.
The average household income in Tiffin township is $60,919 with a poverty rate of 22.76%. The median age in Tiffin township is 42.6 years: 38.5 years for males, and 44.4 years for females.