- Category: Populated Place
- Type: Hamlet
- Latitude/Longitude: 50°18'24"N 4°45'48"W
- Eastings/Northings: 203328, 48855
- OS Grid: SX033488
- Mapcode Local: GBR N1.Z080
- Mapcode Global: FRA 08X7.23V
Location and coordinates are for the approximate centre of Trenarren within this administrative area.
Geographic features and populated places may cross administrative borders.