The AL7 1SN postcode was located in Welwyn Hatfield, Hertfordshire postcode town, within East of England, England region.
It is now a terminated postcode, it was a Small User postcode introduced in 1980-01 and terminated on 2000-06.
| Name | Type |
|---|---|
| OA21CD | E00121709 |
| LSOA21CD | E01023971 |
| MSOA21CD | E02004980 |
| MSOA21 | Woolmer Green, Oaklands & Digswell |
| Postcode Area | AL7 |
| Ward | Welwyn East |
| LTLA22 | Welwyn Hatfield |
| UTLA22 | Hertfordshire |
| Region | East of England |
| Country | England |
| Co-ordinates | [ -0.19097241483327118, 51.81738195932572 ] |