- Category: Water Feature
- Type: Island
- Latitude/Longitude: 54°57'54"N 4°29'6"W
- Eastings/Northings: 241012, 566208
- OS Grid: NX410662
- Mapcode Local: GBR 4G.YCNG
- Mapcode Global: WH3TF.2GKJ
Location and coordinates are for the approximate centre of Mill Island within this administrative area.
Geographic features and populated places may cross administrative borders.