- Category: Populated Place
- Type: Other Settlement
- Latitude/Longitude: 52°49'52"N 3°4'39"W
- Eastings/Northings: 327500, 326500
- OS Grid: SJ275265
- Mapcode Local: GBR 72.TNY4
- Mapcode Global: WH78Y.P3QF
Location and coordinates are for the approximate centre of Gronwen within this administrative area.
Geographic features and populated places may cross administrative borders.