- Category: Water Feature
- Type: Island
- Latitude/Longitude: 60°46'12"N 0°56'12"W
- Eastings/Northings: 458018, 1210160
- OS Grid: HP580101
- Mapcode Local: GBR S018.MB1
- Mapcode Global: XHF74.7K98
Location and coordinates are for the approximate centre of Sinna Stack within this administrative area.
Geographic features and populated places may cross administrative borders.