Morgan City, port on the Gulf Intracoastal Waterway, in St. Mary parish, southeastern Louisiana, U.S. It lies along Berwick Bay (bridged to Berwick) of the Atchafalaya River (there widened into Six Mile Lake), about 30 miles (50 km) west of Houma. Founded in 1850, it was incorporated (1860) as Brashear City but was renamed in 1876 for Charles Morgan, then president of the New Orleans, Opelousas and Great Western Railroad, which established its western terminus there. During the American Civil War, the city was a strategic point for the Confederate army as the locale for forts and gunboats. It also served as a supply line for Union soldiers.
The discovery of petroleum in the area in 1947 gave birth to the city’s offshore oil industry. The city also is the base of a large shrimp fleet, and seafood and metal products, as well as chemicals and machinery, are among its manufactures. Nearby waterways, forests, and rice fields provide excellent hunting for small game and waterfowl; of note is the Atchafalaya Delta Wildlife Management Area, which occupies the land surrounding Atchafalaya Bay to the south. Pop. (2000) 12,703; (2010) 12,404.