Johns Lake is a Lake located in Renfrew, Ontario and has an elevation of 195 meters.

• Latitude: 45° 39' 3'' North   (decimal: 45.6508333)
• Longitude: 77° 15' 00'' West   (decimal: -77.2499999)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: Ontario
• Elevation: 195 meters
• Location: Renfrew
• Atlas of Canada Locator Map: Johns Lake
• GPS Coordinate Locator Map: Johns Lake Lat/Long