SM - Sutton
The postal area SM (Sutton) comprises of the following post towns; these towns should be written in capital letters when used in addresses.
Postal Districts within SM - Sutton
| Country | Post Town | Postal District |
| England | Sutton | SM1 SM2 SM3 |
| Morden | SM4 | |
| Carshalton | SM5 | |
| Wallington | SM6 | |
| Banstead | SM7 |
