Lac Saint-Louis is a Lake located in Lemieux; Bécancour, Quebec.

• Latitude: 46° 18' 47'' North   (decimal: 46.3130825)
• Longitude: 72° 2' 54'' West   (decimal: -72.0484351)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Lemieux; Bécancour
• GPS Coordinate Locator Map: Lac Saint-Louis Lat/Long