Lac Demers is a Lake located in Baie-James; Jamésie, Quebec and has an elevation of 432 meters.

• Latitude: 49° 56' 8'' North   (decimal: 49.9355556)
• Longitude: 73° 57' 58'' West   (decimal: -73.9661111)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 432 meters
• Location: Baie-James; Jamésie
• Atlas of Canada Locator Map: Lac Demers
• GPS Coordinate Locator Map: Lac Demers Lat/Long