The HA4 8HY postcode was located in Hillingdon, Hillingdon postcode town, within London, England region.
It is now a terminated postcode, it was a Large User postcode introduced in 1994-05 and terminated on 1995-07.
| Name | Type |
|---|---|
| OA21CD | E00012285 |
| LSOA21CD | E01002470 |
| MSOA21CD | E02000500 |
| MSOA21 | Ruislip |
| Postcode Area | HA4 |
| Ward | Ruislip |
| LTLA22 | Hillingdon |
| UTLA22 | Hillingdon |
| Region | London |
| Country | England |
| Co-ordinates | [ -0.4155791086848217, 51.572966244927805 ] |