The HP4 1SL 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 1992-01 and terminated on 1994-05.
| Name | Type |
|---|---|
| OA21CD | E00118697 |
| LSOA21CD | E01023363 |
| MSOA21CD | E02004864 |
| MSOA21 | Berkhamsted Town |
| Postcode Area | HP4 |
| Ward | Berkhamsted Castle |
| LTLA22 | Dacorum |
| UTLA22 | Hertfordshire |
| Region | East of England |
| Country | England |
| Co-ordinates | [ -0.5812071908519736, 51.7684097338802 ] |