# Newport West and Islwyn

South east Wales. About 103,100 people (mid-2024 estimate) in 146 square kilometres.

Ruth Jones has been the Labour MP for Newport West and Islwyn since July 2024. They won by 8,868 votes on a 55.4% turnout.

Constituency. Code W07000105. In: [Wales](https://openindex.co.uk/wales)

## MP and the 2024 result

Ruth Jones has been the Labour MP for Newport West and Islwyn since July 2024.
They won by 8,868 votes on a 55.4% turnout.

MP: [Ruth Jones](https://members.parliament.uk/member/4716) (Labour).

### General election, 4 July 2024: Newport West and Islwyn

| Candidate | Party | Votes | Share |
| --- | --- | --- | --- |
| Ruth Jones (elected) | Labour | 17,409 | 41.5% |
| Paul Taylor | Reform UK | 8,541 | 20.4% |
| Nick Jones | Conservative | 6,710 | 16.0% |
| Brandon Ham | Plaid Cymru | 3,529 | 8.4% |
| Mike Hamilton | Liberal Democrat | 2,087 | 5.0% |
| Kerry Vosper | Green Party | 2,078 | 5.0% |
| George Etheridge | Independent | 1,597 | 3.8% |

Electorate 75,785. Turnout 55.4%. Majority 8,868 (21.1%). Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: House of Commons Library, UK Parliament election results. https://electionresults.parliament.uk/elections/3650

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

## Key figures

- **Majority, 2024 general election: 21.1%** (July 2024). The winner in Newport West and Islwyn had a majority of 21.1% of valid votes at the general election on 4 July 2024 (House of Commons Library). Joint 195th largest majority of 650. Source: UK Parliament election results, July 2024. Published 4 July 2024. https://openindex.co.uk/constituency/newport-west-and-islwyn#f-ge2024-majority
- **Turnout, 2024 general election: 55.4%** (July 2024). Turnout in Newport West and Islwyn at the general election on 4 July 2024 was 55.4% (House of Commons Library). Joint 174th lowest turnout of 650. Source: UK Parliament election results, July 2024. Published 4 July 2024. https://openindex.co.uk/constituency/newport-west-and-islwyn#f-ge2024-turnout
- **Population: 101,566** (2021). Newport West and Islwyn had 101,566 usual residents at the census (ONS Census 2021). 308th most populated of 650. 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/constituency/newport-west-and-islwyn#f-population
- **People in radon Affected Area squares: 84%** (2022). About 84% of people in Newport West and Islwyn 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/constituency/newport-west-and-islwyn#f-radon-affected-share

## On the map

- [Radon Affected Area by constituency](https://openindex.co.uk/map/radon-affected-areas?place=W07000105) (Worked out by Open Index · 2022): About 84% of people in Newport West and Islwyn live in a 1 km square that the radon atlas marks as a radon Affected Area.
- [Average house price by council](https://openindex.co.uk/map/house-prices?place=W07000105) (UK House Price Index · August 2026): Published for whole councils, so the map colours all of Caerphilly, where most of this constituency lies. The outline is Newport West and Islwyn.
- [Crime and ASB by council](https://openindex.co.uk/map/recorded-crime?place=W07000105) (Police recorded crime and outcomes (data.police.uk) · August 2026): Published for whole councils, so the map colours all of Caerphilly, where most of this constituency lies. The outline is Newport West and Islwyn.
- [Population by constituency](https://openindex.co.uk/map/population?place=W07000105) (Census 2021, England and Wales): Newport West and Islwyn had 101,566 usual residents at the census.

## How Newport West and Islwyn compares

Each constituency against every other constituency the measure covers.

| Measure | Newport West and Islwyn | Rank | Compared with |
| --- | --- | --- | --- |
| Majority, 2024 general election | 21.1% | joint 195th largest majority | 650 constituencies, UK · Jul 2024 |
| Turnout, 2024 general election | 55.4% | joint 174th lowest turnout | 650 constituencies, UK · Jul 2024 |
| Population | 101,566 | 308th most populated | 650 constituencies, UK · 2021 |
| People in radon Affected Area squares | 84% | joint 143rd most people in radon Affected Areas | 650 constituencies, UK · 2022 |

## What is the population of Newport West and Islwyn?

Newport West and Islwyn had 101,566 usual residents at the census.
Newport West and Islwyn is the 308th most populated of 650 in the UK.

## Figures for the whole of Caerphilly

Most of Newport West and Islwyn lies in Caerphilly. These figures are published for the whole of Caerphilly, not for constituencies, so they describe the council and not Newport West and Islwyn itself. [See Caerphilly](https://openindex.co.uk/caerphilly)

- **Average house price: £198,545** (August 2026). Caerphilly’s average house price was £198,545 in August 2026 (HM Land Registry). Up 4.4% in a year. Source: UK House Price Index, August 2026. Published 21 October 2026.
- **Median full-time pay: £35,367** (2025). Full-time workers living in Caerphilly earned a median of £35,367 in 2025 (ONS earnings survey). 78th lowest paid of 348. Source: Annual Survey of Hours and Earnings, 2025. Published 23 October 2025.
- **House price to pay: 5.6×** (2025). A home in Caerphilly costs 5.6 times local full-time pay. Joint 66th most affordable of 348. Source: Worked out by Open Index from the UK House Price Index and the ONS earnings survey. Published 21 October 2026.
- **Population estimate: 176,078** (2025). Caerphilly’s population was an estimated 176,078 in mid-2025 (ONS population estimates). Down 0.1% in a year. Source: Mid-year population estimates, 2025. Published 1 October 2026.

## Newport West and Islwyn in brief

The winner in Newport West and Islwyn had a majority of 21.1% of valid votes at the general election on 4 July 2024.
Turnout in Newport West and Islwyn at the general election on 4 July 2024 was 55.4%.
Newport West and Islwyn had 101,566 usual residents at the census.
About 84% of people in Newport West and Islwyn live in a 1 km square that the radon atlas marks as a radon Affected Area.

## About

- Type: Constituency
- Code: W07000105
- Council: [Caerphilly †](https://openindex.co.uk/caerphilly)
- Nation: [Wales](https://openindex.co.uk/wales)
- Area: 146 km²
- People, mid-2024: 103,100*
- Wards: 16
- Middle areas: 13
- Neighbourhoods: 62
- Output areas: 326

* 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 council this constituency mostly lies in. Its edges do not follow it.

## Next door

[Caerphilly](https://openindex.co.uk/constituency/caerphilly), [Blaenau Gwent and Rhymney](https://openindex.co.uk/constituency/blaenau-gwent-and-rhymney), [Torfaen](https://openindex.co.uk/constituency/torfaen), [Newport East](https://openindex.co.uk/constituency/newport-east), [Cardiff East](https://openindex.co.uk/constituency/cardiff-east), [Cardiff North](https://openindex.co.uk/constituency/cardiff-north)

## Similar places

Constituencies with the closest mix of age and density. [Caerphilly](https://openindex.co.uk/constituency/caerphilly), [Blaenau Gwent and Rhymney](https://openindex.co.uk/constituency/blaenau-gwent-and-rhymney), [Alyn and Deeside](https://openindex.co.uk/constituency/alyn-and-deeside), [Rhondda and Ogmore](https://openindex.co.uk/constituency/rhondda-and-ogmore), [Torfaen](https://openindex.co.uk/constituency/torfaen), [Neath and Swansea East](https://openindex.co.uk/constituency/neath-and-swansea-east).

## Latest updates for Newport West and Islwyn

- 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/W07000105

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/constituency/newport-west-and-islwyn, or to one figure with its anchor, https://openindex.co.uk/constituency/newport-west-and-islwyn#f-ge2024-majority.

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 2026.10.9. The HTML page: https://openindex.co.uk/constituency/newport-west-and-islwyn