Lac-MacDonald is a Unincorporated area located in Harrington; Argenteuil, Quebec and has an elevation of 242 meters.

• Latitude: 45° 52' 25'' North   (decimal: 45.8736566)
• Longitude: 74° 35' 10'' West   (decimal: -74.5860118)
• Topography Feature Category: Unincorporated area
• Geographical Feature: Hameau
• Canadian Province/Territory: Quebec
• Elevation: 242 meters
• Location: Harrington; Argenteuil
• Atlas of Canada Locator Map: Lac-MacDonald
• GPS Coordinate Locator Map: Lac-MacDonald Lat/Long