The estimated 2024 population of Notre-Dame-de-l'Île-Perrot is 11,917. The population of Notre-Dame-de-l'Île-Perrot was recorded at 11,427 in the 2021 Canadian Census, and was recorded at 10,654 in the 2016 census. This is a change in population of 773, which is an annual growth rate of 1.41%.