The HP1 1NL 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 1995-01.
| Name | Type |
|---|---|
| OA21CD | E00189379 |
| LSOA21CD | E01035562 |
| MSOA21CD | E02004870 |
| MSOA21 | Hemel Hempstead Town |
| Postcode Area | HP1 |
| Ward | Boxmoor |
| LTLA22 | Dacorum |
| UTLA22 | Hertfordshire |
| Region | East of England |
| Country | England |
| Co-ordinates | [ -0.4730441602680767, 51.75266767537144 ] |