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