Dixon Springs is an unincorporated community in Smith County, Tennessee, United States. The zip code is: 37057.Once a thriving area between Carthage and Hartsville, the community still has many antebellum homes and significant cemeteries of early settlers in the area, including the grave of Col. William Martin, pioneer of the region and eldest son of General Joseph Martin of Virginia. Dixon Springs was settled prior to 1787 by its namesake, Tilman Dixon, Revolutionary War soldier, where his historic home, Dixona, site of the first Smith County court meeting, still stands.On June 20, 1863, a Civil War skirmish was fought between Confederate soldiers and the Northern occupiers of Dixon Springs at that time.