A full-fledged town on 0.19 km²
L'Île-Dorval is a municipality in its own right, with a mayor, a council, and bylaws. At the 2021 census, Statistics Canada counted 30 permanent residents and 79 private dwellings on 0.19 km², making it one of the smallest municipalities in Canada by both area and population. Incorporated in 1915 when it broke away from Dorval, merged into Montreal in 2002, it took back its independence on January 1, 2006, after winning its 2004 referendum 37 votes to 12.