Iberville was a city in the Montérégie region of Quebec, Canada, on the east side of the Richelieu River, across from Saint-Jean-sur-Richelieu. It was about 30 miles (50 km) from Montreal, and about the same distance from the United States border at the head of Lake Champlain. In 2002, Iberville merged with neighbouring Saint-Jean-sur-Richelieu, along with several other neighbouring towns and villages. The population of Iberville in 2006 was 9,989, up 6% from the 2001 census. The last mayor of Iberville was Jean Rioux, who later became a Liberal MNA in the Quebec National Assembly.