The organisation named Communauté de Communes de l'Aillantais en Bourgogne is a group of municipalities in the department of the Yonne, in Burgundy-Franche-Comté. The total population of this intermunicipal organisation is 10515 inhabitants, spread across a surface area of 264.96 km². The population density is 47 inhabitants/km². The altitude varies between 85 metres and 292 metres. The Communauté de Communes de l'Aillantais en Bourgogne public intermunicipal cooperation establishment comprises the 13 municipalities listed below.