NP postcode area
The NP area holds 18 districts and 13,893 live postcodes; its largest place is Newport.
| District | Live postcodes | Largest place with its centre there |
|---|---|---|
| NP4 | 1,371 | Pontypool |
| NP7 | 1,068 | Abergavenny |
| NP8 | 188 | Crickhowell |
| NP10 | 590 | — |
| NP11 | 913 | Risca |
| NP12 | 904 | Blackwood |
| NP13 | 549 | Abertillery |
| NP15 | 404 | Usk |
| NP16 | 784 | Chepstow |
| NP18 | 487 | Caerleon |
| NP19 | 1,183 | — |
| NP20 | 1,354 | Newport |
| NP22 | 599 | Tredegar |
| NP23 | 883 | Ebbw Vale |
| NP24 | 147 | New Tredegar |
| NP25 | 577 | Monmouth |
| NP26 | 635 | Caldicot |
| NP44 | 1,257 | Cwmbran |
Contains OS data © Crown copyright and database right 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026. Source: Office for National Statistics licensed under the Open Government Licence v3.0. Postcode data is the ONS Postcode Directory, August 2026 edition; counts are live postcodes with a usable location. Northern Ireland postcodes carry a separate licence and are not included; Scotland joins when the site's Scottish coverage does.