- Category: Populated Place
- Type: Hamlet
- Latitude/Longitude: 50°7'54"N 5°27'52"W
- Eastings/Northings: 152500, 31500
- OS Grid: SW525315
- Mapcode Local: GBR DXWB.HQD
- Mapcode Global: VH12T.7YG9
Location and coordinates are for the approximate centre of Gwallon within this administrative area.
Geographic features and populated places may cross administrative borders.