The HP1 3HL 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 1993-01 and terminated on 1995-07.
| Name | Type |
|---|---|
| OA21CD | E00118833 |
| LSOA21CD | E01023391 |
| MSOA21CD | E02004865 |
| MSOA21 | Gadebridge & Old Town |
| Postcode Area | HP1 |
| Ward | Gadebridge |
| LTLA22 | Dacorum |
| UTLA22 | Hertfordshire |
| Region | East of England |
| Country | England |
| Co-ordinates | [ -0.4857767501374701, 51.76182419129376 ] |