Lac Saint-Hilaire is a Lake located in Lac-Nilgaut; Pontiac, Quebec and has an elevation of 354 meters.

• Latitude: 46° 28' 39'' North   (decimal: 46.4775)
• Longitude: 76° 58' 58'' West   (decimal: -76.9827777)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 354 meters
• Location: Lac-Nilgaut; Pontiac
• Atlas of Canada Locator Map: Lac Saint-Hilaire
• GPS Coordinate Locator Map: Lac Saint-Hilaire Lat/Long