There are 4 US Post Offices in Haralson County serving a total of 26,617 residents equating to 6,654 residents per post office. It's estimated that approximately 42,484 packages are handled across the 4 county post offices annually. Haralson County is a county located in the northwestern part of the U.S. state of Georgia. As of the 2010 census, the population was 28,780. The county seat is Buchanan. The county was created on January 26, 1856 and was named for Hugh A. Haralson, a former Georgia congressman. Haralson County is part of the Atlanta-Sandy Springs-Roswell, GA Metropolitan Statistical Area."