
Jefferson township
- County:
- Ashtabula County
- County Seat:
- No
- Area (mi²):
- 22.368
- State:
- Ohio
Jefferson township is located in Ashtabula County, Ohio. Jefferson township has a 2025 population of 928. Jefferson township is currently declining at a rate of -0.11% annually and its population has decreased by -2.21% since the most recent census, which recorded a population of 949 in 2020.
The average household income in Jefferson township is $69,973 with a poverty rate of 3.83%. The median age in Jefferson township is 32.2 years: 43.1 years for males, and 20.4 years for females.