geography
Despite the name, the "West Island" isn't actually its own island. It is an informal name for the western tip of the island of Montreal. Two other islands Île-Bizard and Île-Perrot, just off the western tip of Montreal, are often considered part of the West Island. The Montreal suburbs of Lachine and Lasalle are usually not considered part of the West Island, although they are also mainly residential and anglophone.
The West Island encompasses the following suburbs of Montreal some are boroughs of the city of Montreal; others are separate municipalities:
Dorval.
Pointe-Claire.
Kirkland.
Beaconsfield.
Baie d'Urfé.
Sainte-Anne-de-Bellevue.
Senneville.
Dollard-des-Ormeaux.
Pierrefonds.
Roxboro.
Sainte-Geneviève.
Île-Bizard.