- Category: Water Feature
- Type: Island
- Latitude/Longitude: 57°40'22"N 2°21'11"W
- Eastings/Northings: 379032, 864845
- OS Grid: NJ790648
- Mapcode Local: GBR N8KF.SRP
- Mapcode Global: WH8LY.TDLN
Location and coordinates are for the approximate centre of St John's Stone within this administrative area.
Geographic features and populated places may cross administrative borders.