- Category: Populated Place
- Type: Other Settlement
- Latitude/Longitude: 51°52'21"N 5°18'22"W
- Eastings/Northings: 172500, 224500
- OS Grid: SM725245
- Mapcode Local: GBR C4.S6HF
- Mapcode Global: VH0TK.Z65B
Location and coordinates are for the approximate centre of Treginnis within this administrative area.
Geographic features and populated places may cross administrative borders.