# Caerphilly

South east Wales. About 96,966 people (mid-2024 estimate) in 141 square kilometres.

Chris Evans has been the Labour (Co-op) MP for Caerphilly since July 2024. They won by 6,419 votes on a 52.6% turnout.

Constituency. Code W07000088. In: [Wales](https://openindex.co.uk/wales)

## MP and the 2024 result

Chris Evans has been the Labour (Co-op) MP for Caerphilly since July 2024.
They won by 6,419 votes on a 52.6% turnout.

MP: [Chris Evans](https://members.parliament.uk/member/4040) (Labour (Co-op)).

### General election, 4 July 2024: Caerphilly

| Candidate | Party | Votes | Share |
| --- | --- | --- | --- |
| Chris Evans (elected) | Labour and Co-operative Party | 14,538 | 38.0% |
| Lindsay Whittle | Plaid Cymru | 8,119 | 21.2% |
| Joshua Kim | Reform UK | 7,754 | 20.3% |
| Brandon Gorman | Conservative | 4,385 | 11.5% |
| Steve Aicheler | Liberal Democrat | 1,788 | 4.7% |
| Mark Thomas | Green Party | 1,650 | 4.3% |

Electorate 72,648. Turnout 52.6%. Majority 6,419 (16.8%). 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/3357

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: 16.8%** (July 2024). The winner in Caerphilly had a majority of 16.8% of valid votes at the general election on 4 July 2024 (House of Commons Library). Joint 261st largest majority of 650. Source: UK Parliament election results, July 2024. Published 4 July 2024. https://openindex.co.uk/constituency/caerphilly#f-ge2024-majority
- **Turnout, 2024 general election: 52.6%** (July 2024). Turnout in Caerphilly at the general election on 4 July 2024 was 52.6% (House of Commons Library). Joint 107th lowest turnout of 650. Source: UK Parliament election results, July 2024. Published 4 July 2024. https://openindex.co.uk/constituency/caerphilly#f-ge2024-turnout
- **Population: 96,381** (2021). Caerphilly had 96,381 usual residents at the census (ONS Census 2021). 185th least 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/caerphilly#f-population
- **People in radon Affected Area squares: 83%** (2022). About 83% of people in Caerphilly 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/caerphilly#f-radon-affected-share

## On the map

- [Radon Affected Area by constituency](https://openindex.co.uk/map/radon-affected-areas?place=W07000088) (Worked out by Open Index · 2022): About 83% of people in Caerphilly 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=W07000088) (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 Caerphilly.
- [Crime and ASB by council](https://openindex.co.uk/map/recorded-crime?place=W07000088) (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 Caerphilly.
- [Population by constituency](https://openindex.co.uk/map/population?place=W07000088) (Census 2021, England and Wales): Caerphilly had 96,381 usual residents at the census.

## How Caerphilly compares

Each constituency against every other constituency the measure covers.

| Measure | Caerphilly | Rank | Compared with |
| --- | --- | --- | --- |
| Majority, 2024 general election | 16.8% | joint 261st largest majority | 650 constituencies, UK · Jul 2024 |
| Turnout, 2024 general election | 52.6% | joint 107th lowest turnout | 650 constituencies, UK · Jul 2024 |
| Population | 96,381 | 185th least populated | 650 constituencies, UK · 2021 |
| People in radon Affected Area squares | 83% | joint 149th most people in radon Affected Areas | 650 constituencies, UK · 2022 |

## What is the population of Caerphilly?

Caerphilly had 96,381 usual residents at the census.
Caerphilly is the 185th least populated of 650 in the UK.

## Figures for the whole of Caerphilly

Most of Caerphilly lies in Caerphilly. These figures are published for the whole of Caerphilly, not for constituencies, so they describe the council and not Caerphilly 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.

## Caerphilly in brief

The winner in Caerphilly had a majority of 16.8% of valid votes at the general election on 4 July 2024.
Turnout in Caerphilly at the general election on 4 July 2024 was 52.6%.
Caerphilly had 96,381 usual residents at the census.
About 83% of people in Caerphilly live in a 1 km square that the radon atlas marks as a radon Affected Area.

## About

- Type: Constituency
- Code: W07000088
- Council: [Caerphilly †](https://openindex.co.uk/caerphilly)
- Nation: [Wales](https://openindex.co.uk/wales)
- Area: 141 km²
- People, mid-2024: 96,966*
- Wards: 16
- Middle areas: 13
- Neighbourhoods: 60
- Output areas: 311

* 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

[Newport West and Islwyn](https://openindex.co.uk/constituency/newport-west-and-islwyn), [Cardiff North](https://openindex.co.uk/constituency/cardiff-north), [Pontypridd](https://openindex.co.uk/constituency/pontypridd), [Merthyr Tydfil and Aberdare](https://openindex.co.uk/constituency/merthyr-tydfil-and-aberdare), [Blaenau Gwent and Rhymney](https://openindex.co.uk/constituency/blaenau-gwent-and-rhymney)

## Similar places

Constituencies with the closest mix of age and density. [Newport West and Islwyn](https://openindex.co.uk/constituency/newport-west-and-islwyn), [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 Caerphilly

- 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/W07000088

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/constituency/caerphilly, or to one figure with its anchor, https://openindex.co.uk/constituency/caerphilly#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/caerphilly