Lanfains is a commune in the Côtes-d'Armor department in Brittany, northwestern France.
Geography: Lanfains is situated in the central part of the Côtes-d'Armor department, within the region of Brittany. It is located inland, away from the coast, in a rural setting characterized by agricultural land and scattered hamlets.
Administration: As a commune, Lanfains is part of the arrondissement of Saint-Brieuc and the canton of Quintin. It falls under the administrative jurisdiction of the French Republic.
Demographics: Like many rural communes in France, Lanfains has a relatively small and stable population. Its inhabitants are known as Lanfinois.
History: The area around Lanfains has been inhabited for centuries, with its history tied to the broader historical developments of Brittany. Its local economy traditionally relied on agriculture.