BL - Bolton
The postal area BL (Bolton) comprises of the following post towns; these towns should be written in capital letters when used in addresses.
Postal Districts within BL - Bolton
| Country | Post Town | Postal District |
| England | Bury | BL0 |
| Bolton | BL1 BL2 BL3 BL4 BL5 BL6 BL7 |
|
| Bury | BL8 BL9 |
