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 2026 population of 1,785. Jefferson township is currently declining at a rate of -0.11% annually and its population has decreased by -1.76% since the most recent census, which recorded a population of 1,817 in 2020.
The median household income in Jefferson township is $73,750 with a poverty rate of 4.36%. The median age in Jefferson township is 47.1 years: 47.8 years for males, and 45.3 years for females. For every 100 females there are 91.8 males.