There are 1 US Post Offices in Anderson County serving a total of 21,125 residents equating to 21,125 residents per post office. It's estimated that approximately 33,718 packages are handled across the 1 county post offices annually. Anderson County is a county located in the U.S. state of Kentucky. As of the 2010 census, the population was 21,421. Its county seat is Lawrenceburg. The county was formed in 1827 and named for Richard Clough Anderson, Jr., a Kentucky legislator, U.S. Congressman and minister to Colombia. Anderson County is part of the Frankfort, KY Micropolitan Statistical Area, which is also included in the Lexington-Fayette-Richmond-Frankfort, KY Combined Statistical Area."