Natchez, IndianaNatchez is an unincorporated community in Halbert [Township, Martin County, Indiana|Halbert Township], Martin [County, Indiana|Martin County], in the U.S. state of Indiana.HistoryA post office was established at Natchez in 1844, and remained in operation until it was discontinued in 1905. The community was likely named after Natchez, Mississippi.GeographyNatchez is located along U.S. [Route 150] in the Hoosier [National Forest].