NP18 postcode district
NP18 holds 487 live postcodes around Caerleon, in Newport, Torfaen, Monmouthshire.
Wards
| Name | Share of postcodes |
|---|---|
| Caerleon | 52% |
| Bishton and Langstone | 23% |
| Llanwern | 11% |
| Llanfrechfa and Ponthir | 8% |
| Llangybi Fawr | 3% |
| Ringland | 3% |
| Lliswerry | 0% |
Westminster constituencies
| Name | Share of postcodes |
|---|---|
| Newport East | 89% |
| Torfaen | 8% |
| Monmouthshire | 3% |
Deprivation
The middle postcode here sits in decile 9 of the Welsh Index of Multiple Deprivation, Wales's own separate index, where decile 1 is the most deprived tenth of neighbourhoods and 10 the least. 11% of this district's postcodes sit in the most deprived three deciles, 71% in the least deprived three.
Deprivation deciles describe the LSOA neighbourhood each postcode sits in, weighted by postcodes rather than by people, because the postcode file carries no population. A district where the deprived neighbourhoods are densely populated will read better here than it would per resident.
Neighbouring districts in the NP area
NP4 · NP7 · NP8 · NP10 · NP11 · NP12 · NP13 · NP15 · NP16 · NP19 · NP20 · NP22 · NP23 · NP24 · NP25 · NP26 · NP44
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.