Map
General Information
| Postal Area | Buckinghamshire |
| Postcode | HP1 1DQ |
| User Type | Large (more than 25 items of mail per day) |
| Region | East of England |
| Country | England |
| Local authority | Dacorum |
| Introduction Date | 1986-07-01 |
| Termination Date | 2009-03-01 |
Geographic Information
| Latitude | 51.7516840 |
| Longitude | -0.4728020 |
| Easting | 505519 |
| Northing | 206991 |
| Quality | Within the building of the matched address closest to the postcode mean |