Demographics [Return to top] In French administrative organization, Paris is a French department. The Ile-de-France region comprises eight departments, including Paris. The other departments in the region are Hauts-de-Seine, Seine-Saint-Denis, Val-de-Marne, Val-d’Oise Essonne, Yvelines and Seine-et-Marne. [1]Open Society Institute (OSI) 84. The Parisian suburbs make up the areas with the highest proportion of Muslims in … Continue reading Islam in Paris