
Johnston township
- County:
- Trumbull County
- County Seat:
- No
- Area (mi²):
- 24.96
- State:
- Ohio
Johnston township is located in Trumbull County, Ohio. Johnston township has a 2025 population of 1,736. Johnston township is currently growing at a rate of 0.12% annually and its population has increased by 0.06% since the most recent census, which recorded a population of 1,735 in 2020.
The average household income in Johnston township is $70,038 with a poverty rate of 21.85%. The median age in Johnston township is 40.1 years: 43.1 years for males, and 39.1 years for females.