- Category: Populated Place
- Type: Other Settlement
- Latitude/Longitude: 52°54'21"N 4°37'33"W
- Eastings/Northings: 223500, 337500
- OS Grid: SH235375
- Mapcode Local: GBR 51.NYKX
- Mapcode Global: WH338.X7C3
Location and coordinates are for the approximate centre of Rhos-y-llan within this administrative area.
Geographic features and populated places may cross administrative borders.