Franklin County
Also known as Franklin County, Pennsylvania, Franklin County, PA
county in Pennsylvania, United States
Key facts
- Country
- United States
- State
- Pennsylvania
- Founded
- September 9, 1784
- Named after
- Benjamin Franklin
- Seat
- Chambersburg
- Largest borough
- Chambersburg
- Total
- 773 sq mi (2,000 km )
- Land
- 772 sq mi (2,000 km )
- Water
- 0.6 sq mi (1.6 km ) 0.08%
- Estimate 2025
- 160,652
- Density
- 206/sq mi (80/km )
- Time zone
- UTC−5 ( Eastern )
- Summer dst
Article
Franklin County is a county in the Commonwealth of Pennsylvania. As of the 2020 census, the population was 155,932. Its county seat is Chambersburg.
Franklin County comprises the Chambersburg–Waynesboro, PA metropolitan statistical area, which is also included in the Washington–Baltimore combined statistical area. The county is part of the South Central region of the commonwealth.