- Category: Populated Place
- Type: Suburban Area
- Latitude/Longitude: 51°31'35"N 3°8'42"W
- Eastings/Northings: 320644, 181478
- OS Grid: ST206814
- Mapcode Local: GBR KR2.PQ
- Mapcode Global: VH6F1.FWKK
Location and coordinates are for the approximate centre of Pentwyn within this administrative area.
Geographic features and populated places may cross administrative borders.