
Foster township
- County:
- McKean County
- County Seat:
- No
- Area (mi²):
- 46.165
- State:
- Pennsylvania
Foster township is located in McKean County, Pennsylvania. Foster township has a 2025 population of 3,830. Foster township is currently declining at a rate of -0.96% annually and its population has decreased by -5.1% since the most recent census, which recorded a population of 4,036 in 2020.
The average household income in Foster township is $77,988 with a poverty rate of 12.19%. The median age in Foster township is 47.5 years: 43.8 years for males, and 51.3 years for females.