Sectors in SS9
| Sector | Main place | Postcodes |
|---|---|---|
| SS9 0 | Southend-on-Sea | 2 |
| SS9 1 | Leigh-on-Sea | 179 |
| SS9 2 | Leigh-on-Sea | 211 |
| SS9 3 | Leigh-on-Sea | 210 |
| SS9 4 | Southend-on-Sea | 208 |
| SS9 5 | Southend-on-Sea | 242 |
Places covered by SS9
- Leigh-on-Sea Southend-on-Sea · 659
- Southend-on-Sea Southend-on-Sea · 390