The organisation named Communauté de Communes Océan Marais de Monts is a group of municipalities in the department of the Vendée, in Pays de la Loire. The total population of this intermunicipal organisation is 19934 inhabitants, spread across a surface area of 184.46 km². The population density is 100 inhabitants/km². The maximum altitude is 30 metres. The Communauté de Communes Océan Marais de Monts public intermunicipal cooperation establishment comprises the 5 municipalities listed below.