Lebanon County, Pennsylvania

Lebanon County
Location within the U.S. state of Pennsylvania
Pennsylvania's location within the U.S.
Coordinates: 40°22′N 76°28′W / 40.37°N 76.46°W / 40.37; -76.46
Country United States
State Pennsylvania
FoundedFebruary 16, 1813
SeatLebanon
Largest cityLebanon
Area
  Total
362 sq mi (940 km2)
  Land362 sq mi (940 km2)
  Water0.7 sq mi (2 km2)  0.2%
Population
  Estimate 
(2020)
143,257
  Density390/sq mi (150/km2)
Time zoneUTC−5 (Eastern)
  Summer (DST)UTC−4 (EDT)
Congressional district9th
Websitewww.lebcounty.org

Lebanon County (/ˈlɛbənən/ LEB-ən-ən; 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.