
Jefferson township
- County:
- Ashtabula County
- County Seat:
- No
- Area (mi²):
- 36.591
- State:
- Ohio
Jefferson township is located in Ashtabula County, Ohio. Jefferson township has a 2025 population of 3,483. Jefferson township is currently declining at a rate of -0.06% annually and its population has decreased by -0.37% since the most recent census, which recorded a population of 3,496 in 2020.
The average household income in Jefferson township is $76,506 with a poverty rate of 16.06%. The median age in Jefferson township is 40 years: 43.1 years for males, and 33.6 years for females.