McMinn County is a county in the U.S. state of Tennessee. It is located in East Tennessee. As of the 2020 census, the population was 53,794. The county has a total area of 432 square miles (1,120 km2). Most of the county is within the Ridge and Valley province of the Appalachian Mountains. Its county seat is Athens. McMinn County comprises the Athens, TN Micropolitan Statistical Area.
