
Folsom
- County:
- Delaware County
- County Seat:
- No
- Area (mi²):
- 1.25
- State:
- Pennsylvania
Folsom is a CDP located in Delaware County, Pennsylvania. Folsom has a 2025 population of 8,588. Folsom is currently growing at a rate of 0.21% annually but its population has decreased by -1.36% since the most recent census, which recorded a population of 8,706 in 2020.
The average household income in Folsom is $109,379 with a poverty rate of 10.26%. The median age in Folsom is 38.9 years: 37.4 years for males, and 40 years for females.