Lachenaie and La Plaine remain sector names people use inside the merged city.
Walk or drive through Terrebonne long enough and Parc Masson comes up. One of the named municipal parks that make family plans concrete. In Terrebonne, park invitations usually come with a proper noun.
Summer has a municipal brand. POP ton été is how the city labels warm-month programming, and residents learn the calendar from that phrase rather than from a generic events dump. Park talk is similarly specific: Parc Masson, Parc René-Lévesque, Parc Arc-en-ciel, and Parc des Vignes are named stops, not anonymous green blobs. When someone proposes a family afternoon, those names travel faster than a pin drop, and the Mille Îles breeze does the rest of the sales pitch.
More on Terrebonne: City Score history, neighbour compares, and the full topic set on the hometown page.