- Category: Populated Place
- Type: Hamlet
- Latitude/Longitude: 53°18'7"N 4°6'37"W
- Eastings/Northings: 259456, 380439
- OS Grid: SH594804
- Mapcode Local: GBR JM6Z.CTH
- Mapcode Global: WH53V.T8S9
Location and coordinates are for the approximate centre of Penhwnllys within this administrative area.
Geographic features and populated places may cross administrative borders.