There are 7 US Post Offices in Gordon County serving a total of 56,820 residents equating to 8,117 residents per post office. It's estimated that approximately 90,691 packages are handled across the 7 county post offices annually. Gordon County is a county located in the northwestern part of the U.S. state of Georgia. As of the 2010 census, the population was 55,186. The county seat is Calhoun. Gordon County comprises the Calhoun, GA Micropolitan Statistical Area, which is included in the Atlanta-Athens-Clarke County-Sandy Springs, GA Combined Statistical Area."