In 1865, the area experienced a flood which killed 15 people and washed away 27 houses. By the end of the 19th century, more than 1,000 people lived on the island, and in the early 20th century, almost the entire island was used for growing hay, which was exported to the United States in large quantities. In 1897, the municipality lost about half of its territory when the new Parish Municipality of Saint-Ignace-de-Loyola was formed. In 1981, the parish municipality abbreviated its name and changed its status to become the Municipality of La Visitation-de-l'Île-Dupas. Population trend:  Private dwellings occupied by usual residents: 274 (total dwellings: 303)  Mother tongue:  The Sir Wilfrid Laurier School Board operates anglophone public schools, including: