Mount Pleasant (or Mt. Pleasant) is an unincorporated community in northeastern Marshall County, Mississippi, located along U.S. Route 72 at State Route 311. Although unincorporated, it has a post office serving the nearby city of Holly Springs. The zip code is 38649. Mount Pleasant is bordered by Cayce and Taska to the west, Holly Springs to the south, Slayden to the east, and Rossville, Tennessee to the north.Professional baseball player Benn Karr was born in Mount Pleasant.