The AL7 1US postcode was located in Welwyn Hatfield, Hertfordshire postcode town, within East of England, England region.
It is now a terminated postcode, it was a Large User postcode introduced in 1997-12 and terminated on 1999-06.
| Name | Type |
|---|---|
| OA21CD | E00121421 |
| LSOA21CD | E01023912 |
| MSOA21CD | E02004983 |
| MSOA21 | Haldens |
| Postcode Area | AL7 |
| Ward | Haldens |
| LTLA22 | Welwyn Hatfield |
| UTLA22 | Hertfordshire |
| Region | East of England |
| Country | England |
| Co-ordinates | [ -0.1883259349431083, 51.8099317784931 ] |