Morgan City sits on the banks of the Atchafalaya River. Morgan City was originally called Tiger Island by surveyors appointed by U.S. Secretary of War John Calhoun because of a particular type of wild cat seen in the area. It was later called Brashear City after Walter Brashear, a prominent Kentucky physician who purchased large tracts of land and acquired numerous sugar mills. It was incorporated in 1860 as Brashear City. Morgan City (previously known as Brashear City) is a city in St. Martin and St. Mary parishes in the U.S. state of Louisiana. The St. Mary Parish portion of Morgan City is part of the Morgan City Micropolitan Statistical Area, while the small St. Martin Parish portion is part of the Lafayette Metropolitan Statistical Area.