There are 21 US Post Offices in Franklin County serving a total of 54,244 residents equating to 2,583 residents per post office. It's estimated that approximately 86,579 packages are handled across the 21 county post offices annually. Franklin County is a county located in the U.S. state of New York. As of the 2010 census, the population was 51,599. Its county seat is Malone. The county is named in honor of American Founding Father Benjamin Franklin. Franklin County comprises the Malone, NY Micropolitan Statistical Area. Much of Franklin County is within the Adirondack Park. Its Canadian borders are the provinces of Quebec and Ontario."