- Category: Populated Place
- Type: Suburban Area
- Latitude/Longitude: 53°15'35"N 4°24'58"W
- Eastings/Northings: 238919, 376360
- OS Grid: SH389763
- Mapcode Local: GBR HNG2.PSW
- Mapcode Global: WH42S.4B7C
Location and coordinates are for the approximate centre of Gwalchmai Isaf within this administrative area.
Geographic features and populated places may cross administrative borders.