The HP1 3BX 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 1990-02 and terminated on 1994-05.
| Name | Type |
|---|---|
| OA21CD | E00119023 |
| LSOA21CD | E01023431 |
| MSOA21CD | E02004856 |
| MSOA21 | Markyate, Flamstead & Gaddesden |
| Postcode Area | HP1 |
| Ward | Watling |
| LTLA22 | Dacorum |
| UTLA22 | Hertfordshire |
| Region | East of England |
| Country | England |
| Co-ordinates | [ -0.5109614732886856, 51.78912115147132 ] |