Cumberland County
Also known as Cumberland County, Pennsylvania, Cumberland County, PA
county in Pennsylvania, United States
Key facts
- Country
- United States
- State
- Pennsylvania
- Founded
- January 27, 1750
- Named after
- Cumberland , England
- Seat
- Carlisle
- Largest borough
- Carlisle
- Total
- 550 sq mi (1,400 km )
- Land
- 545 sq mi (1,410 km )
- Water
- 4.8 sq mi (12 km ) 0.9%
- Estimate 2025
- 277,270
- Density
- 476/sq mi (184/km )
- Time zone
- UTC−5 ( Eastern )
- Summer dst
~15 min read
Article
Cumberland County is a county in the Commonwealth of Pennsylvania. As of the 2020 census, the population was 259,469. Its county seat is Carlisle. Cumberland County is included in the Harrisburg–Carlisle metropolitan statistical area. The county is part of the South Central region of the commonwealth.
History