The organisation named Communauté d'Agglomération Lamballe Terre et Mer is a group of municipalities in the department of the Côtes-d'Armor, in Brittany. The total population of this intermunicipal organisation is 69787 inhabitants, spread across a surface area of 912.50 km². The population density is 128 inhabitants/km². The maximum altitude is 340 metres. The Communauté d'Agglomération Lamballe Terre et Mer public intermunicipal cooperation establishment comprises the 38 municipalities listed below.