- Category: Populated Place
- Type: Other Settlement
- Latitude/Longitude: 53°4'32"N 4°13'59"W
- Eastings/Northings: 250500, 355500
- OS Grid: SH505555
- Mapcode Local: GBR 5K.BB5S
- Mapcode Global: WH43M.YYDF
Location and coordinates are for the approximate centre of Bwlchyllyn within this administrative area.
Geographic features and populated places may cross administrative borders.