Lac-Sergent is a Unincorporated area located in Lac-Sergent; Portneuf, Quebec.

• Latitude: 46° 51' 51'' North   (decimal: 46.8641891)
• Longitude: 71° 43' 43'' West   (decimal: -71.7287115)
• Topography Feature Category: Unincorporated area
• Geographical Feature: Bureau de poste
• Canadian Province/Territory: Quebec
• Location: Lac-Sergent; Portneuf
• Atlas of Canada Locator Map: Lac-Sergent
• GPS Coordinate Locator Map: Lac-Sergent Lat/Long