"Saint-Luc was a former town in southwestern Quebec, Canada on the Richelieu River.On January 24, 2001, the towns of Saint-Luc, Saint-Athanase, Iberville, and L'Acadie merged into the city of Saint-Jean-sur-Richelieu.Saint-Luc was located in Le Haut-Richelieu Regional County Municipality. Population: (2001) 20,573."@en . . . . .