- Category: Populated Place
- Type: Hamlet
- Latitude/Longitude: 51°54'43"N 5°10'41"W
- Eastings/Northings: 181500, 228500
- OS Grid: SM815285
- Mapcode Local: GBR C9.PN7B
- Mapcode Global: VH1QX.669K
Location and coordinates are for the approximate centre of Treglemais within this administrative area.
Geographic features and populated places may cross administrative borders.