Map
General Information
| Postal Area | Buckinghamshire |
| Postcode | SL1 1QX |
| User Type | Small (less than 25 items of mail per day) |
| Region | South East |
| Country | England |
| Local authority | Slough |
| Introduction Date | 1980-01-01 |
Geographic Information
| Latitude | 51.5049430 |
| Longitude | -0.5896030 |
| Easting | 497985 |
| Northing | 179388 |
| Quality | Within the building of the matched address closest to the postcode mean |