The organisation named Communauté de Communes du Serein is a group of municipalities in the department of the Yonne, in Burgundy-Franche-Comté. The total population of this intermunicipal organisation is 7822 inhabitants, spread across a surface area of 569.15 km². The population density is 16 inhabitants/km². The altitude varies between 135 metres and 391 metres. The Communauté de Communes du Serein public intermunicipal cooperation establishment comprises the 35 municipalities listed below.