| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in High Catton | YO41 |
| Postal/ZIP Codes in High Gardham | HU17 7RX |
| Postal/ZIP Codes in High Hunsley | HU20 3UR |
| Postal/ZIP Codes in Highfield | YO8 |
| Postal/ZIP Codes in Hilston | HU11 |
| Postal/ZIP Codes in Hive | HU15 2DQ, HU15 2FR, HU15 … |
| Postal/ZIP Codes in Hollym | HU19 |
| Postal/ZIP Codes in Holme-on-Spalding-Moor | YO43 |
| Postal/ZIP Codes in Holme-on-the-Wolds | HU17 7GA, HU17 7PT, HU17 … |
| Postal/ZIP Codes in Holmpton | HU19 |
| Postal/ZIP Codes in Hook | DN14 |
| Postal/ZIP Codes in Hornsea | HU18 |
| Postal/ZIP Codes in Hotham | YO43 |
| Postal/ZIP Codes in Howden | DN14 |
| Postal/ZIP Codes in Howden Dyke | DN14 |
| Postal/ZIP Codes in Huggate | YO42 |
| Postal/ZIP Codes in Humbleton | HU11 |
| Postal/ZIP Codes in Hutton | YO25 |
| Postal/ZIP Codes in Kelk | YO25 8HL |
| Postal/ZIP Codes in Kellythorpe | YO25 |
| Postal/ZIP Codes in Keyingham | HU12 |
| Postal/ZIP Codes in Kilham | YO25 |
| Postal/ZIP Codes in Kilnsea | HU12 |
| Postal/ZIP Codes in Kilnwick | YO25 |
| Postal/ZIP Codes in Kilnwick Percy | YO42 |
| Postal/ZIP Codes in Kilpin | DN14 |