| Locality | Post Code |
|---|---|
| Harwood | DL12 |
| Haswell | DH6 |
| Haswell Plough | DH6 |
| Hawthorn | SR7 |
| Headlam | DL2 3HA |
| Hedley Hill | DH7 |
| Hedley Hope | DL13 4BN, DL13 4BW, DL13 … |
| Helmington Row | DL15 |
| Hesleden | TS27 |
| Hett | DH6 |
| Hett Hills | DH2 |
| High Etherley | DL14 |
| High Hesleden | TS27 |
| High Hold | DH2 |
| High Pittington | DH6 |
| High Shincliffe | DH1 |
| High Startforth | DL12 |
| High Westwood | NE17 |
| High Wham | DL13 |
| Hilton | DL2 |
| Hobson | NE16 |
| Horden | SR8 |
| Houghall | DH1 |
| Howden Le Wear | DL15 |
| Hunderthwaite | DL12 |
| Hunstanworth | DH8 |