LaSalle is a town in Essex County, Ontario, Canada. It is a bedroom community of the City of Windsor and part of the Windsor Census Me…LaSalle is a town in Essex County, Ontario, Canada. It is a bedroom community of the City of Windsor and part of the Windsor Census Metropolitan Area, and is located south of that city. LaSalle, along with Windsor, is the oldest French settlement area in Southwestern Ontario, and the oldest continually inhabited European settlement in Canada west of the Quebec border. The town was named for explorer René-Robert Cavelier, Sieur de La Salle.