There are 5 US Post Offices in Burke County serving a total of 20,957 residents equating to 4,191 residents per post office. It's estimated that approximately 33,450 packages are handled across the 5 county post offices annually. Burke County is a county located along the eastern border of the U.S. state of Georgia in the Piedmont. As of the 2010 census, the population was 23,316. The county seat is Waynesboro. Burke County is part of the Augusta-Richmond County, GA-SC Metropolitan Statistical Area."