There are 22 US Post Offices in Northampton County serving a total of 272,982 residents equating to 12,408 residents per post office. It's estimated that approximately 435,710 packages are handled across the 22 county post offices annually. Northampton County is a county located in the U.S. state of Pennsylvania. As of the 2010 census, the population was 297,735. Its county seat is Easton. The county was formed in 1752 from parts of Bucks County. Its namesake was Northamptonshire and the county seat of Easton is named for the country house Easton Neston. Northampton County is included in the Allentown-Bethlehem-Easton, PA-NJ Metropolitan Statistical Area, which is also included in the New York-Newark, NY-NJ-CT-PA Combined Statistical Area. Its northern edge borders The Poconos, and its eastern section borders the Delaware River, which divides Pennsylvania and New Jersey. The county is industrially-oriented, producing anthracite coal, cement, and other industrial products. Bethlehem Steel, once one of the world's largest manufacturers of steel, was located there prior to its closing in 2003."