The HA4 0YN 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 2003-01 and terminated on 2003-07.
| Name | Type |
|---|---|
| OA21CD | E00012424 |
| LSOA21CD | E01002496 |
| MSOA21CD | E02006796 |
| MSOA21 | South Ruislip |
| Postcode Area | HA4 |
| Ward | South Ruislip |
| LTLA22 | Hillingdon |
| UTLA22 | Hillingdon |
| Region | London |
| Country | England |
| Co-ordinates | [ -0.38468867852012584, 51.55612543294648 ] |