# Cardiff West

South Wales. About 107,318 people (mid-2024 estimate) in 63 square kilometres.

Mr Alex Barros-Curtis has been the Labour MP for Cardiff West since July 2024. They won by 7,019 votes on a 59.1% turnout.

Constituency. Code W07000092. In: [Wales](https://openindex.co.uk/wales)

## MP and the 2024 result

Mr Alex Barros-Curtis has been the Labour MP for Cardiff West since July 2024.
They won by 7,019 votes on a 59.1% turnout.

MP: [Mr Alex Barros-Curtis](https://members.parliament.uk/member/5175) (Labour).

### General election, 4 July 2024: Cardiff West

| Candidate | Party | Votes | Share |
| --- | --- | --- | --- |
| Alex Barros-Curtis (elected) | Labour | 16,442 | 36.7% |
| Kiera Marshall | Plaid Cymru | 9,423 | 21.1% |
| James Hamblin | Conservative | 6,835 | 15.3% |
| Peter Hopkins | Reform UK | 5,626 | 12.6% |
| Jess Ryan | Green Party | 3,157 | 7.1% |
| Manda Rigby | Liberal Democrat | 1,921 | 4.3% |
| Neil McEvoy | Propel | 1,041 | 2.3% |
| John Urquhart | Independent | 241 | 0.5% |
| Sean Wesley | Heritage Party | 71 | 0.2% |

Electorate 75,697. Turnout 59.1%. Majority 7,019 (15.7%). 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/3367

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: 15.7%** (July 2024). The winner in Cardiff West had a majority of 15.7% of valid votes at the general election on 4 July 2024 (House of Commons Library). Joint 292nd largest majority of 650. Source: UK Parliament election results, July 2024. Published 4 July 2024. https://openindex.co.uk/constituency/cardiff-west#f-ge2024-majority
- **Turnout, 2024 general election: 59.1%** (July 2024). Turnout in Cardiff West at the general election on 4 July 2024 was 59.1% (House of Commons Library). Joint 290th lowest turnout of 650. Source: UK Parliament election results, July 2024. Published 4 July 2024. https://openindex.co.uk/constituency/cardiff-west#f-ge2024-turnout
- **Population: 102,499** (2021). Cardiff West had 102,499 usual residents at the census (ONS Census 2021). 286th 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/cardiff-west#f-population
- **People in radon Affected Area squares: 68%** (2022). About 68% of people in Cardiff West 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/cardiff-west#f-radon-affected-share

## On the map

- [Radon Affected Area by constituency](https://openindex.co.uk/map/radon-affected-areas?place=W07000092) (Worked out by Open Index · 2022): About 68% of people in Cardiff West 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=W07000092) (UK House Price Index · July 2026): Published for whole councils, so the map colours all of Cardiff, where most of this constituency lies. The outline is Cardiff West.
- [Crime and ASB by council](https://openindex.co.uk/map/recorded-crime?place=W07000092) (Police recorded crime and outcomes (data.police.uk) · August 2026): Published for whole councils, so the map colours all of Cardiff, where most of this constituency lies. The outline is Cardiff West.
- [Population by constituency](https://openindex.co.uk/map/population?place=W07000092) (Census 2021, England and Wales): Cardiff West had 102,499 usual residents at the census.

## How Cardiff West compares

Each constituency against every other constituency the measure covers.

| Measure | Cardiff West | Rank | Compared with |
| --- | --- | --- | --- |
| Majority, 2024 general election | 15.7% | joint 292nd largest majority | 650 constituencies, UK · Jul 2024 |
| Turnout, 2024 general election | 59.1% | joint 290th lowest turnout | 650 constituencies, UK · Jul 2024 |
| Population | 102,499 | 286th most populated | 650 constituencies, UK · 2021 |
| People in radon Affected Area squares | 68% | joint 213th most people in radon Affected Areas | 650 constituencies, UK · 2022 |

## What is the population of Cardiff West?

Cardiff West had 102,499 usual residents at the census.
Cardiff West is the 286th most populated of 650 in the UK.

## Figures for the whole of Cardiff

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

- **Average house price: £272,252** (July 2026). Cardiff’s average house price was £272,252 in July 2026 (HM Land Registry). Up 2.7% in a year. Source: UK House Price Index, July 2026. Published 16 September 2026.
- **Median full-time pay: £36,946** (2025). Full-time workers living in Cardiff earned a median of £36,946 in 2025 (ONS earnings survey). 121st lowest paid of 348. Source: Annual Survey of Hours and Earnings, 2025. Published 23 October 2025.
- **House price to pay: 7.4×** (2025). A home in Cardiff costs 7.4 times local full-time pay. Joint 167th least affordable of 348. Source: Worked out by Open Index from the UK House Price Index and the ONS earnings survey. Published 16 September 2026.
- **Population estimate: 381,516** (2025). Cardiff’s population was an estimated 381,516 in mid-2025 (ONS population estimates). Down 0.1% in a year. Source: Mid-year population estimates, 2025. Published 1 October 2026.

## Cardiff West in brief

The winner in Cardiff West had a majority of 15.7% of valid votes at the general election on 4 July 2024.
Turnout in Cardiff West at the general election on 4 July 2024 was 59.1%.
Cardiff West had 102,499 usual residents at the census.
About 68% of people in Cardiff West live in a 1 km square that the radon atlas marks as a radon Affected Area.

## About

- Type: Constituency
- Code: W07000092
- Council: [Cardiff †](https://openindex.co.uk/cardiff)
- Nation: [Wales](https://openindex.co.uk/wales)
- Area: 62.87 km²
- People, mid-2024: 107,318*
- Wards: 11
- Middle areas: 14
- Neighbourhoods: 62
- Output areas: 323

* 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

[Pontypridd](https://openindex.co.uk/constituency/pontypridd), [Vale of Glamorgan](https://openindex.co.uk/constituency/vale-of-glamorgan), [Cardiff South and Penarth](https://openindex.co.uk/constituency/cardiff-south-and-penarth), [Cardiff North](https://openindex.co.uk/constituency/cardiff-north)

## Similar places

Constituencies with the closest mix of age and density. [Newport East](https://openindex.co.uk/constituency/newport-east), [Swansea West](https://openindex.co.uk/constituency/swansea-west), [Cardiff North](https://openindex.co.uk/constituency/cardiff-north), [Cardiff South and Penarth](https://openindex.co.uk/constituency/cardiff-south-and-penarth), [Cardiff East](https://openindex.co.uk/constituency/cardiff-east), [Pontypridd](https://openindex.co.uk/constituency/pontypridd).

## Latest updates for Cardiff West

- Dental practices updated: NHS England · Oct 2026.
- Schools updated: Ofsted · Oct 2026.
- GP practices updated: NHS England · Oct 2026.
- Schools updated: Department for Education · Oct 2026.

The same figures as JSON: https://openindex.co.uk/v1/places/W07000092

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/constituency/cardiff-west, or to one figure with its anchor, https://openindex.co.uk/constituency/cardiff-west#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 2026.10.8, https://doi.org/10.5281/zenodo.23508850. The HTML page: https://openindex.co.uk/constituency/cardiff-west