- Category: Water Feature
- Type: Island
- Latitude/Longitude: 51°41'30"N 5°7'3"W
- Eastings/Northings: 184613, 203838
- OS Grid: SM846038
- Mapcode Local: GBR G4.HG0H
- Mapcode Global: VH1RX.7QSV
Location and coordinates are for the approximate centre of Thorn Island within this administrative area.
Geographic features and populated places may cross administrative borders.