W postcode area
The W area holds 26 districts and 18,480 live postcodes; its largest place is Acton.
| District | Live postcodes | Largest place with its centre there |
|---|---|---|
| W1A | 141 | — |
| W1B | 297 | — |
| W1C | 141 | West End of London |
| W1D | 698 | — |
| W1F | 754 | Soho |
| W1G | 703 | — |
| W1H | 691 | — |
| W1J | 666 | — |
| W1K | 878 | — |
| W1S | 554 | West End |
| W1T | 922 | — |
| W1U | 1,070 | — |
| W1W | 621 | — |
| W2 | 1,125 | Bayswater |
| W3 | 1,158 | Acton |
| W4 | 1,024 | Chiswick |
| W5 | 1,007 | Ealing Common |
| W6 | 773 | — |
| W7 | 510 | — |
| W8 | 688 | — |
| W9 | 578 | Maida Hill |
| W10 | 692 | Queen's Park |
| W11 | 733 | Notting Hill |
| W12 | 820 | Shepherds Bush |
| W13 | 595 | West Ealing |
| W14 | 641 | — |
Contains OS data © Crown copyright and database right 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026. Source: Office for National Statistics licensed under the Open Government Licence v3.0. Postcode data is the ONS Postcode Directory, August 2026 edition; counts are live postcodes with a usable location. Northern Ireland postcodes carry a separate licence and are not included; Scotland joins when the site's Scottish coverage does.