Thibodaux is a city in and the parish seat of Lafourche Parish, Louisiana, United States, along the banks of Bayou Lafourche in the northwestern part of the parish. The population was 14,567 at the 2010 census. Thibodaux is a principal city of the Houma–Bayou Cane–Thibodaux Metropolitan Statistical Area.ZIP codes for Thibodaux are 70301, 70302, and 70310. Thibodaux's area code is 985. Thibodaux is nicknamed "Queen City of Lafourche.