YO - York
The postal area YO (York) comprises of the following post towns; these towns should be written in capital letters when used in addresses.
Postal Districts within YO - York
| Country | Post Town | Postal District |
| England | York | YO1 YO2 YO3 YO4 YO5 YO6 |
| Thirsk | YO7 | |
| Selby | YO8 | |
| Scarborough | YO11 YO12 YO13 |
|
| Filey | YO14 | |
| Bridlington | YO15 YO16 |
|
| Malton | YO17 | |
| Pickering | YO18 | |
| York | YO19 | |
| Whitby | YO21 YO22 |
|
| York | YO23 | |
| Driffield | YO25 |
