Vallons-de-l'Erdre is a commune of 6,556 people (2017). It is found in the region Pays de la Loire in the Loire-Atlantique department in western France. The municipality was created on 1 January 2018 from the former communes of Saint-Mars-la-Jaille (the seat), Bonnœuvre, Freigné (part of the department of Maine-et-Loire before 2018), Maumusson, Saint-Sulpice-des-Landes and Vritz.