Map
General Information
| Postal Area | Southend-on-Sea |
| Postcode | SS99 1DB |
| User Type | Large (more than 25 items of mail per day) |
| Region | East of England |
| Country | England |
| Local authority | Southend-on-Sea |
| Introduction Date | 1983-01-01 |
| Termination Date | 1984-12-01 |
Geographic Information
| Latitude | 51.5434100 |
| Longitude | 0.7083250 |
| Easting | 587900 |
| Northing | 186200 |
| Quality | Postcode terminated prior to Gridlink® initiative, last known ONS postcode grid reference |