- Category: Populated Place
- Type: Village
- Latitude/Longitude: 53°16'29"N 4°31'59"W
- Eastings/Northings: 231193, 378306
- OS Grid: SH311783
- Mapcode Local: GBR HN51.J99
- Mapcode Global: WH42J.BYMB
Location and coordinates are for the approximate centre of Caergeiliog within this administrative area.
Geographic features and populated places may cross administrative borders.