The HP3 9DN 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 2001-06 and terminated on 2008-12.
| Name | Type |
|---|---|
| OA21CD | E00189320 |
| LSOA21CD | E01035563 |
| MSOA21CD | E02004870 |
| MSOA21 | Hemel Hempstead Town |
| Postcode Area | HP3 |
| Ward | Hemel Hempstead Town |
| LTLA22 | Dacorum |
| UTLA22 | Hertfordshire |
| Region | East of England |
| Country | England |
| Co-ordinates | [ -0.4698851896152881, 51.748400438080104 ] |