Sectors in W1K
| Sector | Main place | Postcodes |
|---|---|---|
| W1K 1 | City of Westminster | 79 |
| W1K 2 | City of Westminster | 214 |
| W1K 3 | City of Westminster | 122 |
| W1K 4 | City of Westminster | 94 |
| W1K 5 | City of Westminster | 129 |
| W1K 6 | City of Westminster | 119 |
| W1K 7 | City of Westminster | 121 |
Places covered by W1K
- City of Westminster Westminster · 873