- Category: Water Feature
- Type: Island
- Latitude/Longitude: 57°29'6"N 6°7'54"W
- Eastings/Northings: 152456, 851418
- OS Grid: NG524514
- Mapcode Local: GBR C87Y.B3D
- Mapcode Global: WGZ7W.S473
Location and coordinates are for the approximate centre of Holm Island within this administrative area.
Geographic features and populated places may cross administrative borders.