Districts in the NP area
| District | Main place | Local authority | Sectors | Postcodes |
|---|---|---|---|---|
| NP4 | Pontypool | Torfaen | 7 | 1,371 |
| NP7 | Abergavenny | Monmouthshire | 7 | 1,068 |
| NP8 | Crickhowell | Powys | 1 | 188 |
| NP10 | Newport | Newport | 3 | 590 |
| NP11 | Risca | Caerphilly | 6 | 913 |
| NP12 | Blackwood | Caerphilly | 6 | 904 |
| NP13 | Abertillery | Blaenau Gwent | 4 | 549 |
| NP15 | Usk | Monmouthshire | 3 | 404 |
| NP16 | Chepstow | Monmouthshire | 4 | 784 |
| NP18 | Caerleon | Newport | 3 | 487 |
| NP19 | Newport | Newport | 6 | 1,183 |
| NP20 | Newport | Newport | 8 | 1,354 |
| NP22 | Tredegar | Blaenau Gwent | 4 | 599 |
| NP23 | Ebbw Vale | Blaenau Gwent | 6 | 883 |
| NP24 | New Tredegar | Caerphilly | 1 | 147 |
| NP25 | Monmouth | Monmouthshire | 4 | 577 |
| NP26 | Caldicot | Monmouthshire | 4 | 635 |
| NP44 | Cwmbrân | Torfaen | 9 | 1,257 |