There are 6 US Post Offices in Mcminn County serving a total of 49,856 residents equating to 8,309 residents per post office. It's estimated that approximately 79,576 packages are handled across the 6 county post offices annually. McMinn County is a county located in the U.S. state of Tennessee. As of the 2010 census, the population was 52,266. Its county seat is Athens. McMinn County comprises the Athens, TN Micropolitan Statistical Area, which is also included in the Chattanooga-Cleveland-Dalton, TN-GA-AL Combined Statistical Area.