The HP18 9SQ postcode was located in Buckinghamshire, Buckinghamshire postcode town, within South East, England region.
It is now a terminated postcode, it was a Small User postcode introduced in 1980-01 and terminated on 2004-10.
| Name | Type |
|---|---|
| OA21CD | E00089055 |
| LSOA21CD | E01017643 |
| MSOA21CD | E02003661 |
| MSOA21 | Oakley, Brill & Edgcott |
| Postcode Area | HP18 |
| Ward | Grendon Underwood |
| LTLA22 | Buckinghamshire |
| UTLA22 | Buckinghamshire |
| Region | South East |
| Country | England |
| Co-ordinates | [ -1.0608172925342219, 51.79184005311726 ] |