Lewisburg is a city in Greenbrier County, West Virginia, United States. The population was 3,830 at the 2010 census. It is the county seat of Greenbrier County.
Lewisburg is located approximately one mile north of the Greenbrier River.
According to the United States Census Bureau, the city has a total area of 3.81 square miles (9.87 km2), of which 3.80 square miles (9.84 km2) is land and 0.01 square miles (0.03 km2) is water. Much of it is within the karst belt and a sinkhole is gated over at an intersection. It is part of the Davis Spring subwatershed, site of the state's largest spring with a daily output of one million gallons.
Lewisburg is part of the Southern West Virginia region.
Historic Lewisburg is centered at the crossroads of U.S. Route 60, historically called The Midland Trail, and U.S. Route 219. Interstate 64's intersection with U.S. Route 219 near the northern border of the town has drawn most modern development into that area.
Greenbrier Valley Airport supports a vibrant general aviation community, and also has direct daily flights on United Airlines to Washington DC and Chicago.
The climate in this area is characterized by hot, humid summers and generally mild to cool winters. According to the Köppen Climate Classification system, Lewisburg has a humid subtropical climate, abbreviated "Cfa" on climate maps.
As of the census of 2010, there were 3,830 people, 1,892 households, and 989 families living in the city.