
Lewisburg
- County:
- Union County
- County Seat:
- Yes
- Area (mi²):
- 0.973
- State:
- Pennsylvania
Lewisburg is a borough located in Union County, Pennsylvania. Lewisburg has a 2025 population of 5,323. It is also the county seat of .Lewisburg is currently growing at a rate of 0.64% annually and its population has increased by 3.3% since the most recent census, which recorded a population of 5,153 in 2020.
The average household income in Lewisburg is $79,205 with a poverty rate of 19.48%. The median age in Lewisburg is 26.8 years: 26.5 years for males, and 27 years for females.