Repentigny (ʁəpɑ̃tiɲi) is an off-island suburb of Montreal, Quebec, Canada. It is located north of the city on the lower end of the L'Assomption River, and on the Saint Lawrence River. Repentigny and Charlemagne were the first towns off the eastern tip of the Island of Montreal. Repentigny is part of the Lanaudière region. It was founded in 1670 by Jean-Baptiste Le Gardeur, son of Seigneur Pierre Le Gardeur. During the town's first 250 years, Repentigny was only inhabited by a few hundred peasants, or habitants, and was an agricultural community. In 1677, the first population census only shows 30 inhabitants. Its first mayor was Benjamin Moreau 1855. Repentigny merged with its neighbouring city of Le Gardeur on June 1, 2002. The city's area grew from 29 to 69 km2 and the population grew by 70%. Repentigny was also the western terminus of the Chemin du Roy, a road that extends eastward towards Quebec City. In the 2021 Census of Population conducted by Statistics Canada, Repentigny had a population of 86100 living in 34174 of its 34710 total private dwellings, a change of from its 2016 population of 84285. With a land area of , it had a population density of in 2021. In 2021, Repentigny was 81.4% white/European, 17.6% visible minorities, and 1.0% Indigenous. The largest visible minority groups were Black (9.9%), Arab (3.3%), and Latin American (2.2%) 85.8% of residents spoke French as their mother tongue. Other common first languages were Spanish (2.3%) Arabic (2.0%), Haitian Creole (1.8%) English (1.7%), Kabyle (0.7%), and Italian (0.6%). 1.6% of residents listed both French and a non-official language as mother tongues while 0.9% of listed both French and English. 70.3% of the population was Christian, down from 89.3% in 2011. 59.0% of residents were Catholic, 6.7% were Christian n.o.s, 1.6% were Protestant and 3.0% belonged to other Christian denominations or Christian-related traditions. Non-religious and secular people made up 23.3% of the population, up from 8.7% in 2011. 6.