The organisation named Communauté de Communes du Haut Val d'Oise is a group of municipalities in the department of the Val-d'Oise, in Ile-de-France. The total population of this intermunicipal organisation is 40086 inhabitants, spread across a surface area of 48.73 km². The population density is 813 inhabitants/km². The altitude varies between 23 metres and 210 metres. The Communauté de Communes du Haut Val d'Oise public intermunicipal cooperation establishment comprises the 9 municipalities listed below.