Lebanon -- U.S. County in Pennsylvania Population (2000): 120327 Housing Units (2000): 49320 Land area (2000): 361.856799 sq. miles (937.204766 sq. km) Water area (2000): 0.742713 sq. miles (1.923619 sq. km) Total area (2000): 362.599512 sq. miles (939.128385 sq. km) Located within: Pennsylvania (PA), FIPS 42 Location: 40.349838 N, 76.445451 W Headwords: Lebanon Lebanon, PA Lebanon County Lebanon County, PA