Jefferson township
- County:
- Ashtabula County
- County Seat:
- No
- Area (mi²):
- 18.814
- State:
- Ohio
Jefferson township is located in Ashtabula County, Ohio. Jefferson township has a 2026 population of 1,549. Jefferson township is currently declining at a rate of 0% annually and its population has decreased by -0.9% since the most recent census, which recorded a population of 1,563 in 2020.
The median household income in Jefferson township is $81,094 with a poverty rate of 5.63%. The median age in Jefferson township is 53.7 years: 58.6 years for males, and 50.5 years for females. For every 100 females there are 81.6 males.