| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Burton Fleming | YO25 |
| Postal/ZIP Codes in Burton Pidsea | HU12 |
| Postal/ZIP Codes in Camerton | HU12 |
| Postal/ZIP Codes in Carnaby | YO15, YO16 |
| Postal/ZIP Codes in Catfoss | HU11 |
| Postal/ZIP Codes in Catwick | HU17 |
| Postal/ZIP Codes in Cherry Burton | HU17 |
| Postal/ZIP Codes in Coniston | HU11 |
| Postal/ZIP Codes in Cotness | DN14 7YE |
| Postal/ZIP Codes in Cottam | YO25 |
| Postal/ZIP Codes in Cottingham | HU16 |
| Postal/ZIP Codes in Cowden | HU11 |
| Postal/ZIP Codes in Cowlam | YO25 |
| Postal/ZIP Codes in Crabley Creek | HU15 1RX |
| Postal/ZIP Codes in Cranswick | YO25 |
| Postal/ZIP Codes in Danthorpe | HU12 |
| Postal/ZIP Codes in Drewton | HU15 |
| Postal/ZIP Codes in Driffield | YO25 |
| Postal/ZIP Codes in Dringhoe | YO25 |
| Postal/ZIP Codes in Dunnington | YO25 |
| Postal/ZIP Codes in Dunswell | HU6 |
| Postal/ZIP Codes in Easington | HU12 |
| Postal/ZIP Codes in East Cottingwith | YO42 |
| Postal/ZIP Codes in East Cowick | DN14 |
| Postal/ZIP Codes in East Newton | HU11 4SD |
| Postal/ZIP Codes in Eastburn | YO25 9DP |