The organisation named Communauté de Communes du Mont des Avaloirs is a group of municipalities in the department of the Mayenne, in Pays de la Loire. The total population of this intermunicipal organisation is 16056 inhabitants, spread across a surface area of 548.05 km². The population density is 32 inhabitants/km². The altitude varies between 106 metres and 416 metres. The Communauté de Communes du Mont des Avaloirs public intermunicipal cooperation establishment comprises the 26 municipalities listed below.