- Category: Water Feature
- Type: Island
- Latitude/Longitude: 50°0'45"N 5°16'0"W
- Eastings/Northings: 166042, 17604
- OS Grid: SW660176
- Mapcode Local: GBR Z1.6CJ6
- Mapcode Global: VH13H.NYG7
Location and coordinates are for the approximate centre of Mullion Island within this administrative area.
Geographic features and populated places may cross administrative borders.