Districts in the TW area
| District | Main place | Local authority | Sectors | Postcodes |
|---|---|---|---|---|
| TW1 | Twickenham | Richmond upon Thames | 5 | 665 |
| TW2 | Twickenham | Richmond upon Thames | 3 | 558 |
| TW3 | London | Hounslow | 5 | 787 |
| TW4 | London | Hounslow | 3 | 428 |
| TW5 | London | Hounslow | 2 | 400 |
| TW6 | London | Hillingdon | 3 | 124 |
| TW7 | Isleworth | Hounslow | 5 | 760 |
| TW8 | Brentford | Hounslow | 4 | 539 |
| TW9 | Richmond upon Thames | Richmond upon Thames | 5 | 597 |
| TW10 | Richmond upon Thames | Richmond upon Thames | 3 | 515 |
| TW11 | Teddington | Richmond upon Thames | 4 | 557 |
| TW12 | Hampton | Richmond upon Thames | 4 | 562 |
| TW13 | Feltham | Hounslow | 5 | 692 |
| TW14 | Feltham | Hounslow | 3 | 476 |
| TW15 | Ashford | Spelthorne | 3 | 657 |
| TW16 | Sunbury-on-Thames | Spelthorne | 4 | 538 |
| TW17 | Shepperton | Spelthorne | 4 | 417 |
| TW18 | Staines-upon-Thames | Spelthorne | 5 | 748 |
| TW19 | Stanwell | Spelthorne | 3 | 386 |
| TW20 | Egham | Runnymede | 4 | 656 |
Main places in the TW area
- London
- Twickenham
- Egham
- Feltham
- Richmond upon Thames
- Staines-upon-Thames
- Teddington
- Ashford
- Sunbury-on-Thames
- Isleworth
- Brentford
- Hampton
- Shepperton
- Stanwell
- Ashford Common
- Laleham
- Shepperton Green
- Wraysbury
- Upper Halliford
- Thorpe
- Stanwell Moor
- Littleton Common
- West Bedfont
- Charlton
- Littleton
- Bishopsgate
- Hythe End
- Horton
- Runnymede
- Kingston upon Thames