L'Île-Sainte-Thérèse is a Unincorporated area located in Saint-Jean-sur-Richelieu; Le Haut-Richelieu, Quebec and has an elevation of 22 meters.

• Latitude: 45° 22' 26'' North   (decimal: 45.3739283)
• Longitude: 73° 15' 11'' West   (decimal: -73.2531889)
• Topography Feature Category: Unincorporated area
• Geographical Feature: Hameau
• Canadian Province/Territory: Quebec
• Elevation: 22 meters
• Location: Saint-Jean-sur-Richelieu; Le Haut-Richelieu
• Atlas of Canada Locator Map: L'Île-Sainte-Thérèse
• GPS Coordinate Locator Map: L'Île-Sainte-Thérèse Lat/Long