Map
General Information
| Postal Area | Southend-on-Sea |
| Postcode | SS1 3LU |
| User Type | Small (less than 25 items of mail per day) |
| Region | East of England |
| Country | England |
| Local authority | Southend-on-Sea |
| Introduction Date | 1987-10-01 |
| IMD 2025 | Decile 9 (most deprived = 1, least = 10) Rank 29,862 of 33,755 English Indices of Deprivation 2025 |
Geographic Information
| Latitude | 51.5373470 |
| Longitude | 0.7627390 |
| Easting | 591698 |
| Northing | 185667 |
| Quality | Within the building of the matched address closest to the postcode mean |