- Category: Populated Place
- Type: Village
- Latitude/Longitude: 51°46'55"N 3°6'30"W
- Eastings/Northings: 323635, 209851
- OS Grid: SO236098
- Mapcode Local: GBR F1.YZKL
- Mapcode Global: VH79C.2GLP
Location and coordinates are for the approximate centre of Garn-yr-erw within this administrative area.
Geographic features and populated places may cross administrative borders.