- Category: Water Feature
- Type: Island
- Latitude/Longitude: 51°25'31"N 0°18'35"W
- Eastings/Northings: 517609, 170954
- OS Grid: TQ176709
- Mapcode Local: GBR 77.YC9
- Mapcode Global: VHGR8.LF2M
Location and coordinates are for the approximate centre of Trowlock Island within this administrative area.
Geographic features and populated places may cross administrative borders.