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Cardiff West

Constituency

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

MP for Cardiff West

Mr Alex Barros-CurtisLabourMP since

They won by 7,019 votes on a 59.1% turnout.

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

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Radon Affected Area by constituency

Worked out by Open Index · 2022

Under 1%90% or more

About 68% of people in Cardiff West live in a 1 km square that the radon atlas marks as a radon Affected Area.

Majority, 2024 general election
15.7%
Joint 292nd largest majority of 650
House of Commons Library · Jul 2024
Turnout, 2024 general election
59.1%
Joint 290th lowest turnout of 650
House of Commons Library · Jul 2024
Population
102,499
286th most populated of 650
ONS Census 2021 · 2021
People in radon Affected Area squares
68%
UK 44%
Worked out by Open Index

2024 general election result

Candidates in Cardiff West at the general election on 4 July 2024, in finishing order
CandidatePartyVotesShare
Alex Barros-CurtisElectedLabour16,44236.7%
Kiera MarshallPlaid Cymru9,42321.1%
James HamblinConservative6,83515.3%
Peter HopkinsReform UK5,62612.6%
Jess RyanGreen Party3,1577.1%
Manda RigbyLiberal Democrat1,9214.3%
Neil McEvoyPropel1,0412.3%
John UrquhartIndependent2410.5%
Sean WesleyHeritage Party710.2%
Electorate
75,697
Turnout
59.1%
Majority
7,019 (15.7%)
Valid votes
44,757
Rejected ballots
195

Polling day . Shares are of valid votes; turnout is valid votes as a share of the electorate. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: House of Commons Library, UK Parliament election results. The result from the House of Commons Library

How Cardiff West compares

Each dot is a constituency. The black line marks the middle one.

Cardiff WestMiddle
Majority, 2024 general election650 constituencies, UK · Jul 2024
Majority, 2024 general election: every constituency in UK650 areas from 0.0% to 60.6%. The middle area is 14.1%. Cardiff West is 15.7%.
15.7%joint 292nd largest majority
Turnout, 2024 general election650 constituencies, UK · Jul 2024
Turnout, 2024 general election: every constituency in UK650 areas from 40.0% to 75.2%. The middle area is 60.0%. Cardiff West is 59.1%.
59.1%joint 290th lowest turnout
Population650 constituencies, UK · 2021
Population: every constituency in UK650 areas from 26,159 to 151,876. The middle area is 100,988. Cardiff West is 102,499.
102,499286th most populated
People in radon Affected Area squares650 constituencies, UK · 2022
People in radon Affected Area squares: every constituency in UK650 areas from 0.0% to 100.0%. The middle area is 39.0%. Cardiff West is 68.0%.
68%joint 213th most people in radon Affected Areas

Every constituency ranked: population and people in radon affected area squares.

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

Average house price
£272,252
Up 2.7% in a year
HM Land Registry · Jul 2026
Median full-time pay
£36,946
121st lowest paid of 348
ONS earnings survey · 2025
House price to pay
7.4×
Joint 167th least affordable of 348
Worked out by Open Index
Population estimate
381,516
Down 0.1% in a year
ONS population estimates · 2025
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.