Saint-RosaireSaint-Rosaire is a parish municipality located in the Centre-du-Québec region of Quebec, Canada.WWW strosaire.caDemographicsIn the 2021 Census of Population conducted by Statistics Canada, Saint-Rosaire had a population of living in of its total private dwellings, a change of from its 2016 population of. With a land area of, it had a population density of in 2021.