St. Mary Parish, Louisiana
St. Mary Parish (French: Paroisse de Sainte-Marie) is a parish located in the U.S. state of Louisiana. As of the 2020 census, the population was 49,406. The parish seat is Franklin. The parish was created in 1811.
St. Mary Parish comprises the Morgan City, LA Micropolitan Statistical Area, which is also included in the Lafayette–Opelousas–Morgan City combined statistical area.