Williamstown is a Unincorporated area located in Northumberland, New Brunswick and has an elevation of 66 meters.

• Latitude: 46° 55' 34'' North   (decimal: 46.9260411)
• Longitude: 65° 42' 32'' West   (decimal: -65.7089837)
• Topography Feature Category: Unincorporated area
• Geographical Feature: Dispersed Rural Community
• Canadian Province/Territory: New Brunswick
• Elevation: 66 meters
• Location: Northumberland
• Atlas of Canada Locator Map: Williamstown
• GPS Coordinate Locator Map: Williamstown Lat/Long