Saint-Jérôme, city, Terrebonne County, southwestern Québec Province, on the North River; incorporated 1950. It is an industrial and shipping center situated near Montréal and the large Mirabel International Airport and serves as a gateway to the Laurentian Mountains tourist area. Major manufactures in the city include textiles; rubber, metal, and paper products; electronic and electric equipment; and mobile homes. Established in 1834, the community developed as a distribution point for newly settled districts and for the forestry and tourist industries of the region. Population 23,316 (1986); 23,916 (1996).