| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Bewholme | YO25 |
| Postal/ZIP Codes in Bielby | YO42 |
| Postal/ZIP Codes in Bilton | HU11 |
| Postal/ZIP Codes in Bishop Burton | HU17 |
| Postal/ZIP Codes in Bishop Wilton | YO42 |
| Postal/ZIP Codes in Blacktoft | DN14 |
| Postal/ZIP Codes in Bolton | YO41 |
| Postal/ZIP Codes in Boothferry | DN14 7EE, DN14 7EF |
| Postal/ZIP Codes in Boynton | YO16 |
| Postal/ZIP Codes in Brandesburton | YO25 |
| Postal/ZIP Codes in Brantingham | HU15 |
| Postal/ZIP Codes in Breighton | YO8 |
| Postal/ZIP Codes in Bridlington | YO15, YO16 |
| Postal/ZIP Codes in Brigham | YO25 |
| Postal/ZIP Codes in Brind | DN14 |
| Postal/ZIP Codes in Broadgate | HU17 8RJ, HU17 8RW |
| Postal/ZIP Codes in Broomfleet | HU15 |
| Postal/ZIP Codes in Brough | HU15 |
| Postal/ZIP Codes in Bubwith | YO8 |
| Postal/ZIP Codes in Buckton | YO15, YO16 |
| Postal/ZIP Codes in Bugthorpe | YO41 |
| Postal/ZIP Codes in Burland | DN14 7LX, DN14 7LX, DN14 … |
| Postal/ZIP Codes in Burnby | YO42 |
| Postal/ZIP Codes in Burstwick | HU12 |
| Postal/ZIP Codes in Burton Agnes | YO25 |
| Postal/ZIP Codes in Burton Constable | HU11 |