There are 6 US Post Offices in Barren County serving a total of 69,729 residents equating to 11,622 residents per post office. It's estimated that approximately 111,295 packages are handled across the 6 county post offices annually. Barren County is a county located in the U.S. state of Kentucky. As of the 2010 census, the population was 42,173. Its county seat is Glasgow. The county was founded on December 20, 1798, from parts of Warren and Green Counties. It was named for the Barrens, meadow lands that cover the northern third, though actually the soil is fertile. Barren County is part of the Glasgow, KY Micropolitan Statistical Area, which is also included in the Bowling Green-Glasgow, KY Combined Statistical Area. In 2007 Barren County was named the \"Best Place to Live in Rural America\" by Progressive Farmer Magazine."