SS - Southend on Sea
The postal area SS (Southend on Sea) comprises of the following post towns; these towns should be written in capital letters when used in addresses.
Postal Districts within SS - Southend on Sea
| Country | Post Town | Postal District |
| England | Westcliff-on-Sea | SS0 |
| Southend | SS1 SS2 SS3 |
|
| Rochford | SS4 | |
| Hockley | SS5 | |
| Rayleigh | SS6 | |
| Benfleet | SS7 | |
| Canvey Island | SS8 | |
| Leigh-on-Sea | SS9 | |
| Wickford | SS11 SS12 |
|
| Basildon | SS13 SS14 SS15 SS16 |
|
| Stanford-le-Hope | SS17 |
