
Foundryville
- County:
- Columbia County
- County Seat:
- No
- Area (mi²):
- 0.54
- State:
- Pennsylvania
Foundryville is a CDP located in Columbia County, Pennsylvania. Foundryville has a 2025 population of 56. Foundryville is currently declining at a rate of -18.84% annually and its population has decreased by -3.45% since the most recent census, which recorded a population of 58 in 2020.
The average household income in Foundryville is $177,702 with a poverty rate of 4.17%. The median age in Foundryville is 49.6 years: 63.5 years for males, and 47.3 years for females.