Districts in the YO area
| District | Main place | Local authority | Sectors | Postcodes |
|---|---|---|---|---|
| YO1 | York | York | 5 | 439 |
| YO7 | Thirsk | North Yorkshire | 5 | 969 |
| YO8 | Selby | North Yorkshire | 7 | 1,336 |
| YO10 | York | York | 3 | 643 |
| YO11 | Scarborough | North Yorkshire | 4 | 796 |
| YO12 | Scarborough | North Yorkshire | 4 | 889 |
| YO13 | Scalby | North Yorkshire | 2 | 419 |
| YO14 | Filey | North Yorkshire | 2 | 405 |
| YO15 | Bridlington | East Riding of Yorkshire | 4 | 490 |
| YO16 | Bridlington | East Riding of Yorkshire | 3 | 677 |
| YO17 | Malton | North Yorkshire | 5 | 833 |
| YO18 | Pickering | North Yorkshire | 3 | 434 |
| YO19 | Dunnington | York | 3 | 494 |
| YO21 | Whitby | North Yorkshire | 4 | 681 |
| YO22 | Whitby | North Yorkshire | 2 | 443 |
| YO23 | York | York | 4 | 585 |
| YO24 | York | York | 4 | 697 |
| YO25 | Driffield | East Riding of Yorkshire | 7 | 1,403 |
| YO26 | York | York | 7 | 885 |
| YO30 | York | York | 6 | 678 |
| YO31 | York | York | 6 | 810 |
| YO32 | Haxby | York | 5 | 793 |
| YO41 | Stamford Bridge | East Riding of Yorkshire | 3 | 439 |
| YO42 | Pocklington | East Riding of Yorkshire | 4 | 739 |
| YO43 | Market Weighton | East Riding of Yorkshire | 2 | 485 |
| YO51 | Boroughbridge | North Yorkshire | 1 | 262 |
| YO60 | Sheriff Hutton | North Yorkshire | 2 | 257 |
| YO61 | Easingwold | North Yorkshire | 4 | 672 |
| YO62 | Kirkbymoorside | North Yorkshire | 4 | 624 |
| YO90 | York | York | 1 | 10 |
Main places in the YO area
- York
- Scarborough
- Bridlington
- Whitby
- Selby
- Driffield
- Pocklington
- Huntington
- Haxby
- Malton
- Filey
- Thirsk
- Market Weighton
- Pickering
- Easingwold
- Norton-on-Derwent
- Strensall
- Sowerby
- Stamford Bridge
- Copmanthorpe
- Boroughbridge
- Kirkbymoorside
- Dunnington
- Flamborough
- Scalby
- Brayton
- Upper Poppleton
- Helmsley
- Hunmanby
- Thorpe Willoughby