- Category: Populated Place
- Type: Other Settlement
- Latitude/Longitude: 51°48'31"N 0°21'18"W
- Eastings/Northings: 513500, 213500
- OS Grid: TL135135
- Mapcode Local: GBR H7J.F23
- Mapcode Global: VHFRV.SSMW
Location and coordinates are for the approximate centre of Harpenden Common within this administrative area.
Geographic features and populated places may cross administrative borders.