Map
General Information
| Postal Area | County Durham |
| Postcode | DL9 3ER |
| User Type | Large (more than 25 items of mail per day) |
| Region | Yorkshire and The Humber |
| Country | England |
| Local authority | — |
| Introduction Date | 1980-01-01 |
| Termination Date | 1995-01-01 |
Geographic Information
| Latitude | 54.3780930 |
| Longitude | -1.7274740 |
| Easting | 417800 |
| Northing | 498100 |
| Quality | Postcode terminated prior to Gridlink® initiative, last known ONS postcode grid reference |