The Communauté d'agglomération Saint Germain Boucles de Seine is the communauté d'agglomération, an intercommunal structure, in the western suburbs of Paris. It is located in the Yvelines and Val-d'Oise departments, in the Île-de-France region, northern France. It was created in January 2016. Its seat is in Le Pecq.CA Saint Germain Boucles de Seine (N° SIREN : 200058519), BANATIC, accessed 4 November 2024. Its area is 666.7 km2. Its population was 335,109 in 2018.Comparateur de territoire, INSEE, accessed 6 April 2022.
Composition The communauté d'agglomération consists of the following 19 communes, of which one (Bezons) in the Val-d'Oise department:INSEE
Aigremont Bezons Carrières-sur-Seine Chambourcy Chatou Croissy-sur-Seine L'Étang-la-Ville Houilles Louveciennes Maisons-Laffitte Mareil-Marly Marly-le-Roi Le Mesnil-le-Roi Montesson Le Pecq Le Port-Marly Saint-Germain-en-Laye Sartrouville Le Vésinet
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