La Roche-sur-Yon Agglomération is the communauté d'agglomération, an intercommunal structure, centred on the city of La Roche-sur-Yon. It is located in the Vendée department, in the Pays de la Loire region, western France. Created in 2010, its seat is in La Roche-sur-Yon.CA La Roche sur Yon - Agglomération (N° SIREN : 248500589), BANATIC. Retrieved 17 October 2024. Its area is 499.4 km2. Its population was 97,771 in 2019, of which 55,147 in La Roche-sur-Yon proper.Comparateur de territoire, INSEE. Retrieved 21 October 2022.

Composition The communauté d'agglomération consists of the following 13 communes:

Aubigny-Les Clouzeaux La Chaize-le-Vicomte Dompierre-sur-Yon La Ferrière Fougeré Landeronde Mouilleron-le-Captif Nesmy Rives de l'Yon La Roche-sur-Yon Le Tablier Thorigny Venansault

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