
Sullivan township
- County:
- Ashland County
- County Seat:
- No
- Area (mi²):
- 25.415
- State:
- Ohio
Sullivan township is located in Ashland County, Ohio. Sullivan township has a 2025 population of 2,763. Sullivan township is currently growing at a rate of 1.36% annually and its population has increased by 5.02% since the most recent census, which recorded a population of 2,631 in 2020.
The average household income in Sullivan township is $70,906 with a poverty rate of 8.28%. The median age in Sullivan township is 49.4 years: 49.1 years for males, and 51.5 years for females.