- Category: Populated Place
- Type: Other Settlement
- Latitude/Longitude: 51°50'34"N 2°59'44"W
- Eastings/Northings: 331500, 216500
- OS Grid: SO315165
- Mapcode Local: GBR F6.V3JX
- Mapcode Global: VH791.1Y43
Location and coordinates are for the approximate centre of Llantillio Pertholey within this administrative area.
Geographic features and populated places may cross administrative borders.