Irwin Lake is a Lake located in Saint John, New Brunswick and has an elevation of 78 meters.

• Latitude: 45° 21' 59'' North   (decimal: 45.3664849)
• Longitude: 65° 56' 49'' West   (decimal: -65.947025)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: New Brunswick
• Elevation: 78 meters
• Location: Saint John
• Atlas of Canada Locator Map: Irwin Lake
• GPS Coordinate Locator Map: Irwin Lake Lat/Long