| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Haltwhistle | NE49 |
| Postal/ZIP Codes in Hampeth | NE65 9LH, NE65 9LQ |
| Postal/ZIP Codes in Harbottle | NE65 |
| Postal/ZIP Codes in Harle | NE19 |
| Postal/ZIP Codes in Harlow Hill | NE15 |
| Postal/ZIP Codes in Hartburn | NE61 |
| Postal/ZIP Codes in Hartford | NE23 |
| Postal/ZIP Codes in Hartford Bridge | NE22 |
| Postal/ZIP Codes in Harwood | NE61 |
| Postal/ZIP Codes in Haughton | NE46 |
| Postal/ZIP Codes in Hawkwell | NE18 |
| Postal/ZIP Codes in Haydon Bridge | NE47 |
| Postal/ZIP Codes in Healey | NE44 |
| Postal/ZIP Codes in Hebron | NE61 3LA |
| Postal/ZIP Codes in Heddon-on-the-Wall | NE15 |
| Postal/ZIP Codes in Hedley | NE43 |
| Postal/ZIP Codes in Henshaw | NE47 |
| Postal/ZIP Codes in Hepple | NE65 |
| Postal/ZIP Codes in Hepscott | NE61 |
| Postal/ZIP Codes in Hepscott Park | NE61 |
| Postal/ZIP Codes in Hesleyside | NE48 2LB |
| Postal/ZIP Codes in Heugh | NE18 0NH |
| Postal/ZIP Codes in Hexham | NE46 |
| Postal/ZIP Codes in High Buston | NE66 3QH |
| Postal/ZIP Codes in High Callerton | NE20 |
| Postal/ZIP Codes in High Green | NE48 1RP |