
Jefferson township
- County:
- Ashtabula County
- County Seat:
- No
- Area (mi²):
- 37.629
- State:
- Ohio
Jefferson township is located in Ashtabula County, Ohio. Jefferson township has a 2025 population of 3,032. Jefferson township is currently declining at a rate of -0.13% annually and its population has decreased by -0.59% since the most recent census, which recorded a population of 3,050 in 2020.
The average household income in Jefferson township is $108,520 with a poverty rate of 2.4%. The median age in Jefferson township is 52.9 years: 52.8 years for males, and 53 years for females.