Sectors in CH41
| Sector | Main place | Postcodes |
|---|---|---|
| CH41 0 | Birkenhead | 75 |
| CH41 1 | Birkenhead | 75 |
| CH41 2 | Birkenhead | 90 |
| CH41 3 | Birkenhead | 82 |
| CH41 4 | Birkenhead | 106 |
| CH41 5 | Birkenhead | 63 |
| CH41 6 | Birkenhead | 62 |
| CH41 7 | Birkenhead | 57 |
| CH41 8 | Birkenhead | 97 |
| CH41 9 | Birkenhead | 82 |
Places covered by CH41
- Birkenhead Wirral · 754
- Wallasey Wirral · 32