There are 14 US Post Offices in Pike County serving a total of 62,193 residents equating to 4,442 residents per post office. It's estimated that approximately 99,267 packages are handled across the 14 county post offices annually. Pike County is a county located in the U.S. state of Pennsylvania. As of the 2010 census, the population was 57,369. Its county seat is Milford. Pike County is included in the New York-Newark-Jersey City, NY-NJ-PA Metropolitan Statistical Area. In 2006, Pike County was the fastest-growing county in the state of Pennsylvania."