Hudson is an off-island suburb of Montreal, with a population of 5,411. It is located on the south-west bank of the lower Ottawa River, in Vaudreuil-Soulanges Regional County Municipality. Situated about 60 kilometres (37 mi) west of downtown Montreal, many residents commute to work on the Island of Montreal.

Greater Montreal is the most populous metropolitan area in Quebec and the second most populous in Canada after Greater Toronto. In 2015, Statistics Canada identified Montreal's Census Metropolitan Area (CMA) as 4,258.31 square kilometres (1,644.14 sq mi) with a population of 4,027,100, almost half that of the province.