Île Perrot is an island west of the island of Montreal. Right between Lake Saint-Louis and Lac des Deux-Montagnes, more than 31,000 people live in one of Île Perrot's four municipalities: Notre-Dame-de-l'Île-Perrot, Pincourt, Terrasse Vaudreuil and L'Île-Perrot. Île Perrot holds the only working windmill in Quebec, dating from the time Île-Perrot was a seigneury in the French colony of New France. In its honour, what now constitutes the commercial artery of the island was named boulevard Don-Quichotte.