- Category: Populated Place
- Type: Hamlet
- Latitude/Longitude: 57°26'14"N 4°28'28"W
- Eastings/Northings: 251552, 841251
- OS Grid: NH515412
- Mapcode Local: GBR H9B2.12Y
- Mapcode Global: WH3FF.7BGC
Location and coordinates are for the approximate centre of Tomnacross within this administrative area.
Geographic features and populated places may cross administrative borders.