Map
General Information
| Postal Area | Derby |
| Postcode | DE1 1SY |
| User Type | Large (more than 25 items of mail per day) |
| Region | East Midlands |
| Country | England |
| Local authority | Derby |
| Introduction Date | 1980-01-01 |
Geographic Information
| Latitude | 52.9193120 |
| Longitude | -1.4767800 |
| Easting | 435277 |
| Northing | 335894 |
| Quality | Within the building of the matched address closest to the postcode mean |