Duncan is a Unincorporated area located in Saint-Eugène; Drummond, Quebec and has an elevation of 87 meters.

• Latitude: 45° 47' 30'' North   (decimal: 45.7916996)
• Longitude: 72° 37' 45'' West   (decimal: -72.6292841)
• Topography Feature Category: Unincorporated area
• Geographical Feature: Hameau
• Canadian Province/Territory: Quebec
• Elevation: 87 meters
• Location: Saint-Eugène; Drummond
• Atlas of Canada Locator Map: Duncan
• GPS Coordinate Locator Map: Duncan Lat/Long