Saint-Jean-sur-Richelieu (French pronunciation: ​[sɛ̃ ʒɑ̃ syʁ ʁiʃ(ə)ljø]) is a city in eastern Montérégie in the Canadian province of Quebec, about 40 kilometres (25 mi) southeast of Montreal. It is situated on the west bank of the Richelieu River at the northernmost navigable point of Lake Champlain. As of December 2019, the population of Saint-Jean-sur-Richelieu was 98,036.