Westwego is a city in the U.S. state of Louisiana, located in Jefferson Parish. It is a suburban community of New Orleans in the Greater Ne…Westwego is a city in the U.S. state of Louisiana, located in Jefferson Parish. It is a suburban community of New Orleans in the Greater New Orleans metropolitan area and lies along the west bank of the Mississippi River. The population of the city of Westwego was 8,568 at the 2020 United States census.