Communauté d'agglomération Grand Châtellerault is the communauté d'agglomération, an intercommunal structure, centred on the town of Étampes. It is located in the Essonne department, in the Île-de-France region, northern France. Created in 2008, its seat is in Étampes.CA Etampois Sud Essonne (N° SIREN : 200017846), BANATIC. Retrieved 17 October 2024. Its area is 482.5 km2. Its population was 54,673 in 2019, of which 25,629 in Étampes proper.Comparateur de territoire, INSEE. Retrieved 7 November 2022.
Composition The communauté d'agglomération consists of the following 37 communes:
Abbéville-la-Rivière Angerville Arrancourt Authon-la-Plaine Blandy Bois-Herpin Boissy-la-Rivière Boissy-le-Sec Boutervilliers Bouville Brières-les-Scellés Brouy Chalo-Saint-Mars Chalou-Moulineux Champmotteux Chatignonville Congerville-Thionville Étampes Fontaine-la-Rivière La Forêt-Sainte-Croix Guillerval Marolles-en-Beauce Le Mérévillois Mérobert Mespuits Monnerville Morigny-Champigny Ormoy-la-Rivière Plessis-Saint-Benoist Puiselet-le-Marais Pussay Roinvilliers Saclas Saint-Cyr-la-Rivière Saint-Escobille Saint-Hilaire Valpuiseaux
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