WN - Wigan
The postal area WN (Wigan) comprises of the following post towns; these towns should be written in capital letters when used in addresses.
Postal Districts within WN - Wigan
| Country | Post Town | Postal District |
| England | Wigan | WN1 WN2 WN3 WN4 WN5 WN6 |
| Leigh | WN7 | |
| Skelmersdale | WN8 |
