
Colerain township
- County:
- Lancaster County
- County Seat:
- No
- Area (mi²):
- 28.351
- State:
- Pennsylvania
Colerain township is located in Lancaster County, Pennsylvania. Colerain township has a 2025 population of 4,000. Colerain township is currently growing at a rate of 0.7% annually and its population has increased by 2.93% since the most recent census, which recorded a population of 3,886 in 2020.
The average household income in Colerain township is $106,725 with a poverty rate of 16.47%. The median age in Colerain township is 32.7 years: 31.4 years for males, and 35.8 years for females.