Thérèse-De Blainville is a regional county municipality in the Laurentides region of Quebec, Canada. It is located immediately north of Laval on the north shore of the Rivière des Mille-Îles.The population according to the Canada 2011 Census is 154,144.SubdivisionsThere are 7 subdivisions within the RCM: Cities & Towns Blainville Bois-des-Filion Boisbriand Lorraine Rosemère Sainte-Anne-des-Plaines Sainte-ThérèseTransportationAccess RoutesHighways and numbered routes that run through the municipality, including external routes that start or finish at the county border:Autoroutes Principal Highways Secondary Highways External RoutesNone