There are 30 US Post Offices in Somerset County serving a total of 74,944 residents equating to 2,498 residents per post office. It's estimated that approximately 119,619 packages are handled across the 30 county post offices annually. Somerset County is a county located in the U.S. state of Pennsylvania. As of the 2010 census, the population was 77,742. Its county seat is Somerset. The county was created on April 17, 1795, from part of Bedford County and named after Somerset, United Kingdom. Somerset County comprises the Somerset, PA Micropolitan Statistical Area, which is included in the Johnstown-Somerset, PA Combined Statistical Area."