Map
General Information
| Postal Area | Harrow |
| Postcode | HA1 1BY |
| User Type | Large (more than 25 items of mail per day) |
| Region | London |
| Country | England |
| Local authority | Harrow |
| Introduction Date | 1987-04-01 |
| Termination Date | 2011-06-01 |
Geographic Information
| Latitude | 51.5798770 |
| Longitude | -0.3347320 |
| Easting | 515485 |
| Northing | 188093 |
| Quality | Within the building of the matched address closest to the postcode mean |