- Category: Populated Place
- Type: Village
- Latitude/Longitude: 52°32'12"N 3°56'26"W
- Eastings/Northings: 268470, 294974
- OS Grid: SN684949
- Mapcode Local: GBR 8Y.FBDK
- Mapcode Global: VH4DV.NH2Q
Location and coordinates are for the approximate centre of Ffwrnais within this administrative area.
Geographic features and populated places may cross administrative borders.