
Colerain township
- County:
- Belmont County
- County Seat:
- No
- Area (mi²):
- 24.808
- State:
- Ohio
Colerain township is located in Belmont County, Ohio. Colerain township has a 2025 population of 4,028. Colerain township is currently declining at a rate of -0.93% annually and its population has decreased by -4.07% since the most recent census, which recorded a population of 4,199 in 2020.
The average household income in Colerain township is $81,504 with a poverty rate of 9.27%. The median age in Colerain township is 50.1 years: 52.6 years for males, and 47.1 years for females.