It was in 1683 that the Seigneurie des Mille-Îles was granted to Sidrac-Dugué de Boisbriand. The vast lands that count this seigniory including what are today the towns of Saint-Eustache, Bois-des-Filion, Lorraine, Rosemère, Boisbriand, Sainte-Thérèse and Blainville. It will be necessary to wait a few decades before the French colonists launch an assault on this vast region. For the territory of Blainville, it was not until the second half of the 18th century that the territory very gradually opened up to colonization under the impetus of Marie-Thérèse de Blainville, daughter of the military officer Louis-Jean-Baptiste Céloron de Blainville, and her husband Jean-Marie Nolan Lamarque.
Towards the middle of the 19th century, the change in governance led to the advent of the municipal system. While Sainte-Thérèse instantaneous its status as a municipality in 1849, its surroundings became an incorporated parish municipality under the name of Sainte-Thérèse-de-Blainville. It is the progressive detachments of this parish that form the territory of Blainville that we know today: Boisbriand in 1946, Rosemère in 1947, Bois-des-Filion in 1949. During the 1960s, the territorial limits of Blainville were fixed. After a failed attempt to join Sainte-Thérèse, the Boisvert administration took steps to incorporate the town of Blainville. Thus, on June 29, 1968, Blainville
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