Johnston Lake is a Lake located in Nipissing, Ontario and has an elevation of 186 meters.

• Latitude: 46° 15' 44'' North   (decimal: 46.2622222)
• Longitude: 78° 57' 27'' West   (decimal: -78.9574999)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: Ontario
• Elevation: 186 meters
• Location: Nipissing
• Atlas of Canada Locator Map: Johnston Lake
• GPS Coordinate Locator Map: Johnston Lake Lat/Long