Bloomsburg
- County:
- Columbia County
- County Seat:
- Yes
- Area (mi²):
- 4.348
- State:
- Pennsylvania
Bloomsburg is a town located in Columbia County, Pennsylvania. Bloomsburg has a 2026 population of 13,286. It is also the county seat of Columbia County. Bloomsburg is currently growing at a rate of 0.11% annually and its population has increased by 4.6% since the most recent census, which recorded a population of 12,702 in 2020.