Saint-Valérien, QuebecSaint-Valérien is a parish municipality in the Canadian province of Quebec, located in the Rimouski-Neigette Regional County Municipality.WWW municipalite.saint-valeri...DemographicsIn the 2021 Census of Population conducted by Statistics Canada, Saint-Valérien 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.