There are 10 US Post Offices in Breckinridge County serving a total of 16,625 residents equating to 1,663 residents per post office. It's estimated that approximately 26,535 packages are handled across the 10 county post offices annually. Breckinridge County is a county located in the Commonwealth of Kentucky. As of the 2010 census, the population was 20,059. Its county seat is Hardinsburg, Kentucky. The county was formed in 1799 and was named for John Breckinridge (1760\u20131806), an Kentucky Attorney General, state legislator, United States Senator, and United States Attorney General. Breckinridge County is a wet county following a local option election on January 29, 2013 but was a prohibition or dry county for the prior 105 years."