Sectors in TW18
| Sector | Main place | Postcodes |
|---|---|---|
| TW18 1 | Staines-upon-Thames | 202 |
| TW18 2 | Staines-upon-Thames | 194 |
| TW18 3 | Egham | 121 |
| TW18 4 | Staines-upon-Thames | 202 |
| TW18 9 | Staines-upon-Thames | 29 |
Places covered by TW18
- Staines-upon-Thames Spelthorne · 559
- Egham Runnymede · 88
- Laleham Spelthorne · 86