The HA4 0QJ 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 1991-09 and terminated on 1994-05.
| 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 | [ -0.3844527165528224, 51.55545676280758 ] |