Rosemère is an affluent suburb of Montreal, in southwestern Quebec, Canada on the north shore of the Rivière des Mille Îles in the Thérèse-De Blainville Regional County Municipality. The town is noted for its green look, due to the high density of trees. Some wooded areas in the town have been left intact as the town has grown around them. Homes are mostly upscale, varying from renovated cottages to unique character homes. It is almost entirely residential, with no significant industries.