The organisation named Communauté de Communes du Grand Langres is a group of municipalities in the department of the Haute-Marne, in Great East. The total population of this intermunicipal organisation is 21478 inhabitants, spread across a surface area of 719.43 km². The population density is 25 inhabitants/km². The maximum altitude is 482 metres. The Communauté de Communes du Grand Langres public intermunicipal cooperation establishment comprises the 54 municipalities listed below.