Dixon Springs is an unincorporated community in Smith County, Tennessee, United States. Once a thriving area between Carthage and Hartsville, the community is still quaint with many antebellum homes and significant cemeteries of early settlers in the area, including that 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. The ZIP code for Dixon Springs is 37057 and covers a very broad area even beyond Dixon Springs to include the communities of Hillsdale and Cato in Macon and Trousdale counties, respectively.