During the Lower Canada Rebellion, the Battle of Beauharnois was fought in 1838, between Lower Canada loyalists and Patriote rebels.[6] After Edward Ellice and his family were taken prisoner by rebels, the townspeople rebelled. The British were able to quash the rebellion and captured over a hundred Patriote rebels.[7]
The Beauharnois Canal was dug between 1842 and 1845 to connect the lakes Saint-Louis and Saint-Francois[8] as part of a larger project that included the expansion of the Lachine canal. During these years, however, a series of labor conflicts emerged during the canal's construction. On June 3, 1843, a strike began at the canal's construction site. A battle ensued between the striking workers and employers, resulting in the death of five workers and 50 additional injured. The violence unleashed during the strike represented the bloodiest repression against workers in Canadian history.[9]
Amalgamated with Maple Grove and Melocheville on January 1, 2002. Source: Statistics Canada[10]
In the 2021 Census of Population conducted by Statistics Canada, Beauharnois had a population of 13,638 living in 6,293 of its 6,451 total private dwellings, a change of 5.9% from its 2016 population of 12,884. With a land area of 68.22 km2 (26.34 sq mi), it had a population density of 199.9/km2 (517.8/sq mi) in 2021.[4]
5.9%
A-30
R-132 
R-205 
R-236
