Map
General Information
| Postal Area | Southend-on-Sea |
| Postcode | SS11 7RQ |
| User Type | Small (less than 25 items of mail per day) |
| Region | East of England |
| Country | England |
| Local authority | Chelmsford |
| Introduction Date | 1980-01-01 |
| Termination Date | 1991-12-01 |
Geographic Information
| Latitude | 51.6238010 |
| Longitude | 0.5729580 |
| Easting | 578200 |
| Northing | 194800 |
| Quality | Postcode terminated prior to Gridlink® initiative, last known ONS postcode grid reference |