The AL7 1SG 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 1992-08 and terminated on 1995-01.
| Name | Type |
|---|---|
| OA21CD | E00121432 |
| LSOA21CD | E01023915 |
| MSOA21CD | E02004983 |
| MSOA21 | Haldens |
| Postcode Area | AL7 |
| Ward | Welwyn East |
| LTLA22 | Welwyn Hatfield |
| UTLA22 | Hertfordshire |
| Region | East of England |
| Country | England |
| Co-ordinates | [ -0.19382886355743636, 51.8152497984165 ] |