Fleury-MérogisFleury-Mérogis is a commune in the Essonne department in northern France, in the southern suburbs of Paris. The commune has the Fleury-Mérogis Prison, France's and Europe's largest prison.WWW mairie-fleury-merogis.frPopulationInhabitants of Fleury-Mérogis are known as Floriacumois.EducationThe commune has three groups of preschools and elementary schools: Robert-Desnos, Paul-Langevin, and Joliot-Curie.