Lebanon County
county in Pennsylvania, United States of America
Key facts
- Country
- United States
- State
- Pennsylvania
- Founded
- February 16, 1813
- Seat
- Lebanon
- Largest city
- Lebanon
- Total
- 362 sq mi (940 km )
- Land
- 362 sq mi (940 km )
- Water
- 0.7 sq mi (1.8 km ) 0.2%
- Estimate 2025
- 146,380
- Density
- 401/sq mi (155/km )
- Time zone
- UTC−5 ( Eastern )
- Summer dst
- UTC−4 ( EDT )
- Congressional district
- 9th
Article
Lebanon County (/ˈlɛbənən/ LEB-ə-nən; Pennsylvania German: Lebnen Kaundi) is a county in the Commonwealth of Pennsylvania, United States. As of the 2020 census, the population was 143,257. Its county seat is the city of Lebanon. It lies 72 miles northwest of Philadelphia, which is the nearest major city. The county is part of the South Central region of the commonwealth.
The county was formed from portions of Dauphin and Lancaster counties in 1813, with minor boundary revisions in 1814 and 1821. Lebanon County comprises the Lebanon metropolitan statistical area, which is part of the Harrisburg–York–Lebanon combined statistical area.