- Category: Populated Place
- Type: Other Settlement
- Latitude/Longitude: 52°52'5"N 4°40'23"W
- Eastings/Northings: 220158, 333432
- OS Grid: SH201334
- Mapcode Local: GBR GPV3.L42
- Mapcode Global: WH33G.55WG
Location and coordinates are for the approximate centre of Pen-y-graig within this administrative area.
Geographic features and populated places may cross administrative borders.