Districts in the SS area
| District | Main place | Local authority | Sectors | Postcodes |
|---|---|---|---|---|
| SS0 | Southend-on-Sea | Southend-on-Sea | 4 | 737 |
| SS1 | Southend-on-Sea | Southend-on-Sea | 4 | 692 |
| SS2 | Southend-on-Sea | Southend-on-Sea | 3 | 711 |
| SS3 | Shoeburyness | Southend-on-Sea | 3 | 609 |
| SS4 | Rochford | Rochford | 4 | 591 |
| SS5 | Hockley | Rochford | 4 | 545 |
| SS6 | Rayleigh | Rochford | 4 | 747 |
| SS7 | Thundersley | Castle Point | 6 | 1,120 |
| SS8 | Canvey Island | Castle Point | 5 | 903 |
| SS9 | Leigh-on-Sea | Southend-on-Sea | 6 | 1,052 |
| SS11 | Wickford | Basildon | 3 | 476 |
| SS12 | Wickford | Basildon | 2 | 403 |
| SS13 | Basildon | Basildon | 3 | 495 |
| SS14 | Basildon | Basildon | 4 | 735 |
| SS15 | Basildon | Basildon | 3 | 640 |
| SS16 | Basildon | Basildon | 3 | 658 |
| SS17 | Stanford-le-Hope | Thurrock | 5 | 786 |
| SS22 | Southend-on-Sea | Southend-on-Sea | 1 | 3 |
| SS99 | Southend-on-Sea | Southend-on-Sea | 5 | 84 |
Main places in the SS area
- Southend-on-Sea
- Basildon
- Canvey Island
- Rayleigh
- Leigh-on-Sea
- Stanford-le-Hope
- Wickford
- Thundersley
- Shoeburyness
- South Benfleet
- Rochford
- Hockley
- Runwell
- Hadleigh
- Hullbridge
- Ashingdon
- Great Wakering
- Hawkwell
- North Benfleet
- Horndon on the Hill
- Linford
- Canewdon
- Fobbing
- Daws Heath
- Tarpots
- Little Wakering
- Stonebridge
- Bowers Gifford
- Nevendon
- Battlesbridge