- Category: Populated Place
- Type: Village
- Latitude/Longitude: 52°48'28"N 4°30'55"W
- Eastings/Northings: 230549, 326348
- OS Grid: SH305263
- Mapcode Local: GBR 56.W1LD
- Mapcode Global: WH44V.MP05
Location and coordinates are for the approximate centre of Sarn Bach within this administrative area.
Geographic features and populated places may cross administrative borders.