Duffyville is a Unincorporated area located in L'Île-du-Grand-Calumet; Pontiac, Quebec and has an elevation of 135 meters.

• Latitude: 45° 41' 40'' North   (decimal: 45.694444)
• Longitude: 76° 40' 21'' West   (decimal: -76.6725)
• Topography Feature Category: Unincorporated area
• Geographical Feature: Hameau
• Canadian Province/Territory: Quebec
• Elevation: 135 meters
• Location: L'Île-du-Grand-Calumet; Pontiac
• Atlas of Canada Locator Map: Duffyville
• GPS Coordinate Locator Map: Duffyville Lat/Long