during the construction of Montréal-Mirabel International Airport, a part of the Saint-Jérusalem Parish was added to Lachute. In 1981, Cité de Lachute became Ville de Lachute. In 2000, about 10 km2 of Mirabel's territory were annexed by Lachute. In 2002, the Service de police municipale de Lachute was transferred to the Sûreté du Québec. The Expo Lachute Fair is the oldest fair in Quebec and the second-oldest in all of Canada, running from 1825 to the present. In 1917, the Argenteuil Agricultural Society purchased land to hold the Expo Lachute Fair permanently in Lachute. In 1917, the construction of the grandstand and the track was completed, with new cattle and horse barns being constructed as time and money allowed. The Fall Fair was changed to a Spring Fair in 1925 so that it could be deemed strictly a livestock show. Lachute was not always host to the exhibition; from 1825 to 1826, inhabitants of the county of York met in the then-bustling business centre of St. Andrews, to form a society called the County of York Agricultural Society, later changed to the Two Mountains Agricultural Society, and finally the Argenteuil Agricultural Society. Today, the Expo Lachute Fair is still going strong; an annual agriculture fair is held in July and the Fall Derby is in September. The fairgrounds are also used for several other local events throughout the year. Demographics In the 2021 Census of Population conducted by Statistics Canada, Lachute had a population of living in of its total private dwellings, a change of from its 2016 population of . With a land area of , it had a population density of in 2021. Climate Education The Commission scolaire de la Rivière-du-Nord operates French-language public schools. École l'Oasis École Saint-Alexandre École Saint-Julien École polyvalente Lavigne Sir Wilfrid Laurier School Board operates English-language public schools: Laurentian Elementary School Laurentian Regional High School Notable people John Lavis Salem Bland, Methodist theologian and Social Gospel leader. Kevin Lowe, former NHL defenceman and current vice-chairman of the Edmonton Oilers. Jim Watson, former Member of Provincial Parliament (MPP) for the riding of Ottawa West—Nepean and Minister of Municipal Affairs and Housing; current Mayor of Ottawa, Ontario. The Hon. Mayor Watson is a member of the Ontario Liberal Party. Pierre Pagé, former coach of several NHL hockey teams (Calgary, Minnesota, Quebec and Anaheim), and currently head coach of Eisbären Berlin (Berlin Polar Bears) of the