St. Gabriel is a city in Iberville Parish, Louisiana, United States. The city of St. Gabriel includes the areas of Sunshine and Carville. Part of the Baton Rouge metropolitan statistical area, it had a population of 6,677 at the 2010 U.S. census, and 6,433 at the 2020 census.
St. Gabriel was incorporated as a town in 1994 and received city designation in 2001. It is located on the east bank of the Mississippi River, approximately 12 miles south of Baton Rouge. Bayou Manchac serves as the official boundary between St. Gabriel, Ascension Parish, and East Baton Rouge Parish. Over the years, the area has been transformed from a primarily agricultural economy to one that is now dominated by the petrochemical industry.