Bloomsburg is a town in Columbia County, Pennsylvania, United States, located 40 miles (64 km) southwest of Wilkes-Barrealong the Susquehanna River. It is the county seat of Columbia County and the only incorporated town in Pennsylvania.
The first signs of European settlement date to the year 1772, when James McClure established a log cabin in the area. Until the mid-19th century, it was just a small village, known as Bloom Township. Traditionally, Bloomsburg's founding in 1802 has been ascribed to settler Ludwig Eyer, son of Johann Martin Eyer. For 75 years after the discovery of ore in the area, Bloomsburg developed a booming iron industry.