St. Mary Parish, Louisiana

Saint Mary Parish
Saint Mary Parish
Parish
	Main street in Franklin.
	Location within the U.S. state of Louisiana
	Louisiana's location within the U.S.
	Coordinates: 29°38′N 91°28′W / 29.64°N 91.47°W
Country	United States
State	Louisiana
Founded	1811
Named for	Saint Mary
Seat	Franklin
Largest city	Morgan City
Area
• Total	1,119 sq mi (2,900 km2)
• Land	555 sq mi (1,440 km2)
• Water	564 sq mi (1,460 km2) 50%
Population (2020)
• Total	49,406
• Density	44/sq mi (17/km2)
Time zone	UTC−6 (Central)
• Summer (DST)	UTC−5 (CDT)
Congressional district	3rd
Website	www.stmaryparishla.gov

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.^[1] The parish seat is Franklin.^[2] The parish was created in 1811.^[3]

St. Mary Parish comprises the Morgan City, LA Micropolitan Statistical Area, which is also included in the Lafayette-Opelousas-Morgan City, LA Combined Statistical Area.

^ "Census - Geography Profile: St. Mary Parish, Louisiana". United States Census Bureau. Retrieved January 22, 2023.
^ "Find a County". National Association of Counties. Retrieved June 7, 2011.
^ "St. Mary Parish". Center for Cultural and Eco-Tourism. Retrieved September 6, 2014.