Smithdale is an unincorporated community located in Amite County, Mississippi, United States. Smithdale is approximately south-southwest of Auburn on Mississippi Highway 570 and a part of the McComb, Mississippi Micropolitan Statistical Area.
Smithdale has a post office with a zip code of 39664.
Notable people Britte Hughey, member of the Mississippi House of Representatives 1956–1964 Doug Williams, gospel singer Franklin Delano Williams, gospel singer Melvin Williams, gospel musician
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