The organisation named Communauté de Communes Terres de Perche is a group of municipalities in the department of the Eure-et-Loir, in Centre-Loire Valley. The total population of this intermunicipal organisation is 14523 inhabitants, spread across a surface area of 367.55 km². The population density is 57 inhabitants/km². The altitude varies between 137 metres and 286 metres. The Communauté de Communes Terres de Perche public intermunicipal cooperation establishment comprises the 22 municipalities listed below.