In the 2021 Canadian census conducted by Statistics Canada, Sainte-Cécile-de-Lévrard had a population of 349 living in 153 of its 163 total private dwellings, a change of -6.2% from its 2016 population of 372. With a land area of 32.32 km2 (12.48 sq mi), it had a population density of 10.8/km2 (28.0/sq mi) in 2021.[4]