The HP1 1UN postcode was located in Dacorum, Hertfordshire postcode town, within East of England, England region.
It is now a terminated postcode, it was a Large User postcode introduced in 1995-07 and terminated on 1997-07.
| Name | Type |
|---|---|
| OA21CD | E00118775 |
| LSOA21CD | E01023382 |
| MSOA21CD | E02004873 |
| MSOA21 | Boxmoor & Apsley |
| Postcode Area | HP1 |
| Ward | Boxmoor |
| LTLA22 | Dacorum |
| UTLA22 | Hertfordshire |
| Region | East of England |
| Country | England |
| Co-ordinates | [ -0.4817470426855267, 51.75063136900103 ] |