There are 11 US Post Offices in Franklin County serving a total of 53,318 residents equating to 4,847 residents per post office. It's estimated that approximately 85,101 packages are handled across the 11 county post offices annually. Franklin County is a county located in the Blue Ridge foothills of the U.S. state of Virginia. As of the 2010 census, the population was 56,159. Its county seat is Rocky Mount. Franklin County is part of the Roanoke, VA Metropolitan Statistical Area and is located in the Roanoke Region of Virginia. The Roanoke River forms its northeast boundary with Bedford County."