There are 5 US Post Offices in Bradford County serving a total of 23,242 residents equating to 4,648 residents per post office. It's estimated that approximately 37,097 packages are handled across the 5 county post offices annually. Bradford County is a county located in the U.S. state of Florida. As of the 2010 census, the population was 28,520. Its county seat is Starke. Bradford County is the home of the Florida State Prison as well as several other state correctional facilities."