Grand-Saint-Louis is a Unincorporated area located in Bécancour; Bécancour, Quebec and has an elevation of 33 meters.

• Latitude: 46° 18' 50'' North   (decimal: 46.3139157)
• Longitude: 72° 20' 52'' West   (decimal: -72.3478863)
• Topography Feature Category: Unincorporated area
• Geographical Feature: Hameau
• Canadian Province/Territory: Quebec
• Elevation: 33 meters
• Location: Bécancour; Bécancour
• Atlas of Canada Locator Map: Grand-Saint-Louis
• GPS Coordinate Locator Map: Grand-Saint-Louis Lat/Long