
Castanea township
- County:
- Clinton County
- County Seat:
- No
- Area (mi²):
- 5.506
- State:
- Pennsylvania
Castanea township is located in Clinton County, Pennsylvania. Castanea township has a 2025 population of 1,078. Castanea township is currently declining at a rate of -0.55% annually and its population has decreased by -1.91% since the most recent census, which recorded a population of 1,099 in 2020.
The average household income in Castanea township is $77,631 with a poverty rate of 10.34%. The median age in Castanea township is 44.2 years: 42.2 years for males, and 48.1 years for females.