Île Longueuil is a Island located in Coteau-du-Lac; Vaudreuil-Soulanges, Quebec and has an elevation of 28 meters.

• Latitude: 45° 15' 29'' North   (decimal: 45.2580555)
• Longitude: 74° 10' 38'' West   (decimal: -74.1772222)
• Topography Feature Category: Island
• Geographical Feature: Île / Ile
• Canadian Province/Territory: Quebec
• Elevation: 28 meters
• Location: Coteau-du-Lac; Vaudreuil-Soulanges
• Atlas of Canada Locator Map: Île Longueuil
• GPS Coordinate Locator Map: Île Longueuil Lat/Long