| Ort | Postleitzahl |
|---|---|
| Blackrod, North West England) | BL6 |
| Bolton, North West England) | BL1, BL2, BL3, BL5, BL7 |
| Bradshaw, North West England) | BL2 |
| Bromley Cross, North West England) | BL7 |
| Egerton, North West England) | BL7 |
| Farnworth, North West England) | BL4 |
| Harwood, North West England) | BL2 |
| Horwich, North West England) | BL6 |
| Kearsley, North West England) | BL4 |
| Little Lever, North West England) | BL3 |
| Lostock, North West England) | BL6 |
| Over Hulton, North West England) | BL5 |
| Smithills, North West England) | BL1 |