
Jefferson township
- County:
- Ashtabula County
- County Seat:
- No
- Area (mi²):
- 41.917
- State:
- Ohio
Jefferson township is located in Ashtabula County, Ohio. Jefferson township has a 2025 population of 1,789. Jefferson township is currently declining at a rate of -0.11% annually and its population has decreased by -1.65% since the most recent census, which recorded a population of 1,819 in 2020.
The average household income in Jefferson township is $84,024 with a poverty rate of 2.93%. The median age in Jefferson township is 48.6 years: 50.4 years for males, and 47 years for females.