The organisation named Communauté de Communes Bastides et Vallons du Gers is a group of municipalities in the department of the Gers, in Occitanie. The total population of this intermunicipal organisation is 7265 inhabitants, spread across a surface area of 296.97 km². The population density is 22 inhabitants/km². The altitude varies between 110 metres and 342 metres. The Communauté de Communes Bastides et Vallons du Gers public intermunicipal cooperation establishment comprises the 30 municipalities listed below.