- Category: Populated Place
- Type: Hamlet
- Latitude/Longitude: 51°30'59"N 1°52'18"W
- Eastings/Northings: 408991, 179750
- OS Grid: SU089797
- Mapcode Local: GBR 3TD.TV9
- Mapcode Global: VHB3R.H4SQ
Location and coordinates are for the approximate centre of Cotmarsh within this administrative area.
Geographic features and populated places may cross administrative borders.