# NP18

Postcode district covering Caerleon and Ponthir, in Newport.

NP18 is a postcode district covering Caerleon and Ponthir, in Newport. Median sale price £340,000 in 2025. Recorded crime 78.9 per 1,000 people.

Postcode district. Code NP18. In: [Postcodes](https://openindex.co.uk/postcode) › [NP](https://openindex.co.uk/postcode/np)

Approximate outline worked out by Open Index from the ONS Postcode Directory: each census output area belongs to the district that holds most of its postcodes. People, homes, recorded crime and broadband add up those output areas. House sales count every sale with an NP18 postcode. [How census figures are added up](https://openindex.co.uk/sources/population)

## Key figures

- **Median sale price: £340,000** (2025). The median price paid for a home in NP18 was £340,000 in 2025. Joint 851st most expensive of 2,235. Source: Worked out by Open Index from HM Land Registry Price Paid Data. Published 28 September 2026. https://openindex.co.uk/postcode/np18#f-house-sales-median-price
- **Population: 17,053** (2021). NP18 had 17,053 usual residents at the census (ONS Census 2021). 1,117th least populated of 2,756. Source: Census 2021, England and Wales and Scotland's Census 2022 and Census 2021, Northern Ireland, 2021. Published 21 July 2026. https://openindex.co.uk/postcode/np18#f-population
- **People in radon Affected Area squares: 94%** (2022). About 94% of people in NP18 live in a 1 km square that the radon atlas marks as a radon Affected Area. UK 44%. Source: Worked out by Open Index from the UKHSA and BGS radon atlas and census output areas. Published 1 December 2022. https://openindex.co.uk/postcode/np18#f-radon-affected-share
- **Gigabit broadband coverage: 84.9%** (January 2026). In NP18, 84.9% of homes and businesses could get gigabit-capable broadband in January 2026 (Ofcom). UK 87.8%. Source: Connected Nations (Ofcom), January 2026. Published 13 May 2026. https://openindex.co.uk/postcode/np18#f-gigabit-coverage

## On the map

- [Radon Affected Area by postcode district](https://openindex.co.uk/map/radon-affected-areas#place=NP18) (Worked out by Open Index · 2022): About 94% of people in NP18 live in a 1 km square that the radon atlas marks as a radon Affected Area.
- [Sales per year by postcode district](https://openindex.co.uk/map/house-sales-per-year#place=NP18) (Worked out by Open Index · 2025): 313 homes were sold in NP18 in 2025.
- [Crime and ASB by postcode district](https://openindex.co.uk/map/recorded-crime#place=NP18) (Police recorded crime and outcomes (data.police.uk) · August 2026): Crime and anti-social behaviour for NP18.
- [Population by postcode district](https://openindex.co.uk/map/population#place=NP18) (Census 2021, England and Wales): NP18 had 17,053 usual residents at the census.

## How NP18 compares

Each postcode district against every other postcode district the measure covers.

| Measure | NP18 | Rank | Compared with |
| --- | --- | --- | --- |
| Median sale price | £340,000 | 3rd most expensive | 18 postcode districts, NP · 2025 |
| Population | 17,053 | 5th least populated | 18 postcode districts, NP · 2021 |
| People in radon Affected Area squares | 94% | joint 9th most people in radon Affected Areas | 18 postcode districts, NP · 2022 |
| Gigabit broadband coverage | 84.9% | 8th lowest | 18 postcode districts, NP · Jan 2026 |

## Is NP18 safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in NP18 at a rate of 78.9 per 1,000 people.
In August 2026 alone, 120 cases of crime and anti-social behaviour were recorded in NP18.
In the 12 months to August 2026, the most common types were violence and sexual offences (533), other crime (278) and anti-social behaviour (236).
A year earlier, the recorded crime rate in NP18 was 81.2 per 1,000 people.
Worked out by Open Index from police.uk crime records and ONS and NISRA population estimates.
Rates are per resident, so places that many people work in or visit, such as Westminster, the City of London and other city centres, have far higher rates than their residents alone would suggest.

## Deprivation in NP18, neighbourhood by neighbourhood

- Deprivation is ranked by neighbourhood, so NP18 has no single figure. Of its 11 neighbourhoods with a rank:
- Decile 3: 1 neighbourhood
- Decile 4: 1 neighbourhood
- Decile 6: 1 neighbourhood
- Decile 8: 1 neighbourhood
- Decile 9: 4 neighbourhoods
- Decile 10 (Wales’s least deprived 10%): 3 neighbourhoods

Source: Welsh Index of Multiple Deprivation 2025. Decile 1 is the most deprived tenth of neighbourhoods in Wales.

## Neighbourhoods in NP18

| Area | People (census) | Recorded crime per 1,000 | Deprivation decile | Gigabit broadband |
| --- | --- | --- | --- | --- |
| [Newport 001A](https://openindex.co.uk/newport/neighbourhood/w01001623) | 1,407 | 110.7 per 1,000 | 9 | 79.4% |
| [Newport 001B](https://openindex.co.uk/newport/neighbourhood/w01001624) | 1,208 | 30.5 per 1,000 | 10 | 99.6% |
| [Newport 001C](https://openindex.co.uk/newport/neighbourhood/w01001625) | 1,176 | 78.1 per 1,000 | 8 | 62.7% |
| [Newport 001D](https://openindex.co.uk/newport/neighbourhood/w01001626) | 1,507 | 99.3 per 1,000 | 9 | 92.1% |
| [Newport 001E](https://openindex.co.uk/newport/neighbourhood/w01001627) | 1,612 | 35.5 per 1,000 | 10 | 92.7% |
| [Newport 001F](https://openindex.co.uk/newport/neighbourhood/w01001628) | 1,061 | 176.0 per 1,000 | 3 | 84.5% |
| [Newport 004A](https://openindex.co.uk/newport/neighbourhood/w01001639) | 2,179 | 68.4 per 1,000 | 9 | 90.5% |
| [Newport 004C](https://openindex.co.uk/newport/neighbourhood/w01001641) | 1,362 | 72.4 per 1,000 | 9 | 80.8% |
| [Newport 004E](https://openindex.co.uk/newport/neighbourhood/w01001650) | 1,661 | 40.7 per 1,000 | 4 | 95.2% |
| [Newport 004G](https://openindex.co.uk/newport/neighbourhood/w01002027) | 1,780 | 99.7 per 1,000 | 6 | 81.0% |
| [Torfaen 013D](https://openindex.co.uk/torfaen/neighbourhood/w01001509) | 1,380 | 34.5 per 1,000 | 10 | 74.4% |

## Your MP

- [Newport East](https://openindex.co.uk/constituency/newport-east): Jessica Morden (Labour), MP since July 2024. 89% of the people here.
- [Torfaen](https://openindex.co.uk/constituency/torfaen): Nick Thomas-Symonds (Labour), MP since July 2024. 8.2% of the people here.
- [Monmouthshire](https://openindex.co.uk/constituency/monmouthshire): Catherine Fookes (Labour), MP since July 2024. 3.3% of the people here.

As of 18 October 2026. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: UK Parliament, Members API.

## Middle areas in NP18

[Caerleon](https://openindex.co.uk/newport/caerleon), [Langstone & Llan-wern](https://openindex.co.uk/newport/langstone-and-llan-wern)

## Postcode sectors in NP18

[NP18 1 (168 postcodes)](https://openindex.co.uk/postcode/np18-1), [NP18 2 (174 postcodes)](https://openindex.co.uk/postcode/np18-2), [NP18 3 (145 postcodes)](https://openindex.co.uk/postcode/np18-3)

## Council

[Newport](https://openindex.co.uk/newport)

## Postcode districts next to NP18

[NP15](https://openindex.co.uk/postcode/np15), [NP19](https://openindex.co.uk/postcode/np19), [NP20](https://openindex.co.uk/postcode/np20), [NP26](https://openindex.co.uk/postcode/np26), [NP44](https://openindex.co.uk/postcode/np44)

## More in the NP postcode area

[All NP postcode districts](https://openindex.co.uk/postcode/np), [Every UK postcode area](https://openindex.co.uk/postcode)

## NP18 in brief

NP18 is a postcode district covering Caerleon and Ponthir, in Newport.
About 17,497 people lived in NP18 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £340,000 in 2025 across 313 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 78.9 per 1,000 people in the 12 months to August 2026 (police.uk).
The median price paid for a home in NP18 was £340,000 in 2025.
NP18 had 17,053 usual residents at the census.
About 94% of people in NP18 live in a 1 km square that the radon atlas marks as a radon Affected Area.
In NP18, 84.9% of homes and businesses could get gigabit-capable broadband in January 2026.

## About

- Type: Postcode district
- Code: NP18
- Postcode area: [NP](https://openindex.co.uk/postcode/np)
- Constituency: [Newport East †](https://openindex.co.uk/constituency/newport-east)
- Council: [Newport †](https://openindex.co.uk/newport)
- Area: 82.38 km²
- People, mid-2024: 17,497*
- Neighbourhoods: 11
- Output areas: 55

* People: worked out by Open Index from neighbourhood estimates, shared out by where people lived at the census (by area in Northern Ireland). This area's edges do not follow neighbourhood edges, so the figure is close but not exact.
† Best fit: the constituency, council and nation this postcode district mostly lies in. Its edges do not follow theirs.

## Next door

[NP19](https://openindex.co.uk/postcode/np19), [NP26](https://openindex.co.uk/postcode/np26), [NP15](https://openindex.co.uk/postcode/np15), [NP44](https://openindex.co.uk/postcode/np44), [NP20](https://openindex.co.uk/postcode/np20)

## Latest updates for NP18

- August 2026 house prices published: HM Land Registry and partners · Oct 2026.
- September 2026 rent published: ONS private rents · Oct 2026.
- Dental practices updated: NHS England · Oct 2026.
- Schools updated: Ofsted · Oct 2026.

The same figures as JSON: https://openindex.co.uk/v1/places/NP18

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/postcode/np18, or to one figure with its anchor, https://openindex.co.uk/postcode/np18#f-house-sales-median-price.

Open Index's own text and the figures it works out are licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source data keeps its publishers' licences, named with each figure. Give each figure's period and source with it.

Snapshot 2026.10.11. The HTML page: https://openindex.co.uk/postcode/np18