Jefferson township is located in Ashtabula County, Ohio. Jefferson township has a 2026 population of 908. Jefferson township is currently growing at a rate of 0.22% annually and its population has increased by 0.67% since the most recent census, which recorded a population of 902 in 2020.
The median age in Jefferson township is 57.1 years: 58.2 years for males, and 57 years for females. For every 100 females there are 106.6 males.
Data after 2023 is projected based on recent change
Overall: 57.1 years
Female: 57 years
Male: 58.2 years
There are 409 adults, (150 of whom are seniors) in Jefferson township.
Female: 244 (48.4%)
Male: 260 (51.6%)
The racial composition of Jefferson township includes 98.81% White, and smaller percentages for Black or African American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 498 | 98.81% |
| Black or African American | 6 | 1.19% |