The HA1 3SL postcode was located in Harrow, Harrow postcode town, within London, England region.
It is now a terminated postcode, it was a Large User postcode introduced in 1990-02 and terminated on 1995-01.
| Name | Type |
|---|---|
| OA21CD | E00010717 |
| LSOA21CD | E01002135 |
| MSOA21CD | E02000461 |
| MSOA21 | Harrow-on-the-Hill |
| Postcode Area | HA1 |
| Ward | Harrow on the Hill |
| LTLA22 | Harrow |
| UTLA22 | Harrow |
| Region | London |
| Country | England |
| Co-ordinates | [ -0.32933648618003747, 51.56367720991717 ] |