- Category: Populated Place
- Type: Other Settlement
- Latitude/Longitude: 51°38'43"N 2°57'44"W
- Eastings/Northings: 333500, 194500
- OS Grid: ST335945
- Mapcode Local: GBR J7.7FKD
- Mapcode Global: VH7B0.LXQ1
Location and coordinates are for the approximate centre of Common Cefn-llwyn within this administrative area.
Geographic features and populated places may cross administrative borders.