South Mississippi State Hospital serves Lamar, Forrest, Marion, Perry, Greene, Wayne, Jones, Covington, Jefferson Davis, Pearl River, Stone, Hancock, Harrison, George, Jackson, Pike, Walthall, Lawrence, Franklin, and Amite counties. South Mississippi State Hospital in Purvis is an acute care, regional behavioral program with the primary purpose to offer a continuum of services for adults with mental illness within the patient's region of residence.