Vallières-sur-Fier (, literally Vallières on Fier) is a commune in the Haute-Savoie department in the Auvergne-Rhône-Alpes region in south-eastern France. The municipality was established on 1 January 2019 and consist of the communes of Vallières and Val-de-Fier.
Population Population data refer to the area corresponding with the commune as of January 2025.
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