Montaigu-Vendée is a commune in the Vendée department in the Pays de la Loire region in western France. The municipality was established o…Montaigu-Vendée is a commune in the Vendée department in the Pays de la Loire region in western France. The municipality was established on January 1, 2019 by the merger of the communes of Boufféré, La Guyonnière, Montaigu, Saint-Georges-de-Montaigu and Saint-Hilaire-de-Loulay.