There are 26 US Post Offices in Floyd County serving a total of 35,620 residents equating to 1,370 residents per post office. It's estimated that approximately 56,853 packages are handled across the 26 county post offices annually. Floyd County is a county located in the U.S. state of Kentucky. As of the 2010 census, the population was 39,451. Its county seat is Prestonsburg. The county, founded in 1800, is named for Colonel John Floyd (1750\u20131783)."