Hermiston Lake is a Lake located in Northumberland, Ontario and has an elevation of 197 meters.

• Latitude: 44° 15' 3'' North   (decimal: 44.2508333)
• Longitude: 77° 53' 10'' West   (decimal: -77.8861111)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: Ontario
• Elevation: 197 meters
• Location: Northumberland
• Atlas of Canada Locator Map: Hermiston Lake
• GPS Coordinate Locator Map: Hermiston Lake Lat/Long