The organisation named Communauté de Communes des Deux Vallées is a group of municipalities in the department of the Essonne, in Ile-de-France. The total population of this intermunicipal organisation is 18923 inhabitants, spread across a surface area of 188.60 km². The population density is 94 inhabitants/km². The altitude varies between 48 metres and 156 metres. The Communauté de Communes des Deux Vallées public intermunicipal cooperation establishment comprises the 15 municipalities listed below.