Saint-Chamond is a commune in the Loire department in the Auvergne-Rhône-Alpes region in central France. Situated 13 km northeast of th…Saint-Chamond is a commune in the Loire department in the Auvergne-Rhône-Alpes region in central France. Situated 13 km northeast of the city of Saint-Étienne and 50 km southwest of Lyon, the town dates back to the Roman period.