Grainger Island is a Island located in Muskoka, Ontario and has an elevation of 214 meters.

• Latitude: 44° 52' 1'' North   (decimal: 44.8669444)
• Longitude: 79° 26' 55'' West   (decimal: -79.4486111)
• Topography Feature Category: Island
• Geographical Feature: Island
• Canadian Province/Territory: Ontario
• Elevation: 214 meters
• Location: Muskoka
• Atlas of Canada Locator Map: Grainger Island
• GPS Coordinate Locator Map: Grainger Island Lat/Long