Lac Demers is a Lake located in Lac-Walker; Sept-Rivières, Quebec and has an elevation of 589 meters.

• Latitude: 51° 19' 3'' North   (decimal: 51.3175)
• Longitude: 66° 49' 7'' West   (decimal: -66.8186111)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 589 meters
• Location: Lac-Walker; Sept-Rivières
• Atlas of Canada Locator Map: Lac Demers
• GPS Coordinate Locator Map: Lac Demers Lat/Long