There are 1 US Post Offices in Lewis County serving a total of 10,297 residents equating to 10,297 residents per post office. It's estimated that approximately 16,435 packages are handled across the 1 county post offices annually. Lewis County is a county located in the U.S. state of Tennessee. As of the 2010 census, the population was 12,161. Its county seat is Hohenwald. The county is named for explorer Meriwether Lewis, who died and was buried at Grinder's Stand near Hohenwald in 1809."