The city of Brossard was founded on February 14, 1958, and was before part of La Prairie-de-la-Madeleine Parish. Its first mayor was Georges-Henri Brossard. At the very beginning, there were 3,400 inhabitants. The city has some homes dating from the eighteenth and nineteenth centuries, particularly along Prairies Road. On August 8, 1964, a portion of land from
Greenfield Park was added to Brossard. Furthermore,
Notre-Dame-du-Sacré-Cœur was annexed to Brossard on March 25, 1978, becoming the "A" section to form the current city. In the 1970s, an attempt was made by René Désourdy to construct a
cemetery in Brossard. The attempt failed due to the water table being too high in most of the city, and as of 2026 Brossard has no cemetery. Brossard was forcibly merged into the city of
Longueuil on January 1, 2002, as a result of
municipal reorganization in Quebec. and a demerger movement was started by Pierre Senécal, Jacques St-Amant and Gilles Larin which resulted in a municipal
referendum, the largest demerger vote in Québec, that took place on June 20, 2004. 38.70% of the 50,539 qualified voters voted YES for demerger, which met the requirements (35% or more of total voting population) needed for de-amalgamation. As a result, Brossard would continue to be a borough of the city of Longueuil only until the end of 2005. On January 1, 2006, Brossard was reconstituted as a city and Jean-Marc Pelletier was
elected as the new mayor. However, Brossard still remains part of the
urban agglomeration of Longueuil and thus, Brossard sits on the
agglomeration council which determines certain powers of reconstituted cities. On November 11, 2017, Doreen Assad was elected mayor of Brossard, the first woman of
Egyptian descent to hold such position in Canada. ==Geography==