- Category: Geographic Feature
- Type: Other Coastal Landform
- Latitude/Longitude: 49°53'17"N 6°22'21"W
- Eastings/Northings: 86036, 7837
- OS Grid: SV860078
- Mapcode Local: GBR BXNZ.FT7
- Mapcode Global: VGYC9.H2CJ
Location and coordinates are for the approximate centre of Custom House Rock within this administrative area.
Geographic features and populated places may cross administrative borders.