Map
General Information
| Postal Area | Southend-on-Sea |
| Postcode | SS1 9ZY |
| User Type | Large (more than 25 items of mail per day) |
| Region | East of England |
| Country | England |
| Local authority | Southend-on-Sea |
| Introduction Date | 2016-03-01 |
Geographic Information
| Latitude | 51.5448300 |
| Longitude | 0.7087700 |
| Easting | 587925 |
| Northing | 186359 |
| Quality | Imputed by ONS, by reference to surrounding postcode grid references |