- Category: Populated Place
- Type: Hamlet
- Latitude/Longitude: 52°5'35"N 4°11'22"W
- Eastings/Northings: 250103, 246130
- OS Grid: SN501461
- Mapcode Local: GBR DM.B7GR
- Mapcode Global: VH3KD.BNJ7
Location and coordinates are for the approximate centre of Dre-fach within this administrative area.
Geographic features and populated places may cross administrative borders.