- Category: Populated Place
- Type: Village
- Latitude/Longitude: 56°29'29"N 3°0'55"W
- Eastings/Northings: 337574, 733728
- OS Grid: NO375337
- Mapcode Local: GBR Z4S.BM
- Mapcode Global: WH7R9.N39C
Location and coordinates are for the approximate centre of St Mary's within this administrative area.
Geographic features and populated places may cross administrative borders.