# Caerfyrddin

West Wales. About 95,366 people (mid-2024 estimate) in 2,019 square kilometres.

Ann Davies has been the Plaid Cymru MP for Caerfyrddin since July 2024. They won by 4,535 votes on a 61.6% turnout.

Constituency. Code W07000087. In: [Wales](https://openindex.co.uk/wales)

## MP and the 2024 result

Ann Davies has been the Plaid Cymru MP for Caerfyrddin since July 2024.
They won by 4,535 votes on a 61.6% turnout.

MP: [Ann Davies](https://members.parliament.uk/member/5177) (Plaid Cymru).

### General election, 4 July 2024: Caerfyrddin

| Candidate | Party | Votes | Share |
| --- | --- | --- | --- |
| Ann Davies (elected) | Plaid Cymru | 15,520 | 34.0% |
| Martha O'Neil | Labour | 10,985 | 24.1% |
| Simon Hart | Conservative | 8,825 | 19.4% |
| Bernard Holton | Reform UK | 6,944 | 15.2% |
| Nick Beckett | Liberal Democrat | 1,461 | 3.2% |
| Will Beasley | Green Party | 1,371 | 3.0% |
| Nancy Cole | Women's Equality Party | 282 | 0.6% |
| David Evans | Workers Party of Britain | 216 | 0.5% |

Electorate 74,005. Turnout 61.6%. Majority 4,535 (9.9%). 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/3356

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: 9.9%** (July 2024). The winner in Caerfyrddin had a majority of 9.9% of valid votes at the general election on 4 July 2024 (House of Commons Library). Joint 219th smallest majority of 650. Source: UK Parliament election results, July 2024. Published 4 July 2024. https://openindex.co.uk/constituency/caerfyrddin#f-ge2024-majority
- **Turnout, 2024 general election: 61.6%** (July 2024). Turnout in Caerfyrddin at the general election on 4 July 2024 was 61.6% (House of Commons Library). Joint 271st highest turnout of 650. Source: UK Parliament election results, July 2024. Published 4 July 2024. https://openindex.co.uk/constituency/caerfyrddin#f-ge2024-turnout
- **Population: 93,850** (2021). Caerfyrddin had 93,850 usual residents at the census (ONS Census 2021). 112th 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/caerfyrddin#f-population
- **People in radon Affected Area squares: 78%** (2022). About 78% of people in Caerfyrddin 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/caerfyrddin#f-radon-affected-share

## On the map

- [Radon Affected Area by constituency](https://openindex.co.uk/map/radon-affected-areas?place=W07000087) (Worked out by Open Index · 2022): About 78% of people in Caerfyrddin 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=W07000087) (UK House Price Index · August 2026): Published for whole councils, so the map colours all of Carmarthenshire, where most of this constituency lies. The outline is Caerfyrddin.
- [Crime and ASB by council](https://openindex.co.uk/map/recorded-crime?place=W07000087) (Police recorded crime and outcomes (data.police.uk) · August 2026): Published for whole councils, so the map colours all of Carmarthenshire, where most of this constituency lies. The outline is Caerfyrddin.
- [Population by constituency](https://openindex.co.uk/map/population?place=W07000087) (Census 2021, England and Wales): Caerfyrddin had 93,850 usual residents at the census.

## How Caerfyrddin compares

Each constituency against every other constituency the measure covers.

| Measure | Caerfyrddin | Rank | Compared with |
| --- | --- | --- | --- |
| Majority, 2024 general election | 9.9% | joint 219th smallest majority | 650 constituencies, UK · Jul 2024 |
| Turnout, 2024 general election | 61.6% | joint 271st highest turnout | 650 constituencies, UK · Jul 2024 |
| Population | 93,850 | 112th least populated | 650 constituencies, UK · 2021 |
| People in radon Affected Area squares | 78% | joint 172nd most people in radon Affected Areas | 650 constituencies, UK · 2022 |

## What is the population of Caerfyrddin?

Caerfyrddin had 93,850 usual residents at the census.
Caerfyrddin is the 112th least populated of 650 in the UK.

## Figures for the whole of Carmarthenshire

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

- **Average house price: £195,263** (August 2026). Carmarthenshire’s average house price was £195,263 in August 2026 (HM Land Registry). Up 2.7% in a year. Source: UK House Price Index, August 2026. Published 21 October 2026.
- **Median full-time pay: £37,405** (2025). Full-time workers living in Carmarthenshire earned a median of £37,405 in 2025 (ONS earnings survey). 138th lowest paid of 348. Source: Annual Survey of Hours and Earnings, 2025. Published 23 October 2025.
- **House price to pay: 5.2×** (2025). A home in Carmarthenshire costs 5.2 times local full-time pay. Joint 53rd 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: 190,037** (2025). Carmarthenshire’s population was an estimated 190,037 in mid-2025 (ONS population estimates). Down 0.2% in a year. Source: Mid-year population estimates, 2025. Published 1 October 2026.

## Caerfyrddin in brief

The winner in Caerfyrddin had a majority of 9.9% of valid votes at the general election on 4 July 2024.
Turnout in Caerfyrddin at the general election on 4 July 2024 was 61.6%.
Caerfyrddin had 93,850 usual residents at the census.
About 78% of people in Caerfyrddin live in a 1 km square that the radon atlas marks as a radon Affected Area.

## About

- Type: Constituency
- Code: W07000087
- Council: [Carmarthenshire †](https://openindex.co.uk/carmarthenshire)
- Nation: [Wales](https://openindex.co.uk/wales)
- Area: 2,019 km²
- People, mid-2024: 95,366*
- Wards: 29
- Middle areas: 12
- Neighbourhoods: 57
- Output areas: 305

* 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

[Ceredigion Preseli](https://openindex.co.uk/constituency/ceredigion-preseli), [Brecon, Radnor and Cwm Tawe](https://openindex.co.uk/constituency/brecon-radnor-and-cwm-tawe), [Llanelli](https://openindex.co.uk/constituency/llanelli), [Mid and South Pembrokeshire](https://openindex.co.uk/constituency/mid-and-south-pembrokeshire), [Gower](https://openindex.co.uk/constituency/gower)

## Similar places

Constituencies with the closest mix of age and density. [Dwyfor Meirionnydd](https://openindex.co.uk/constituency/dwyfor-meirionnydd), [Ceredigion Preseli](https://openindex.co.uk/constituency/ceredigion-preseli), [Montgomeryshire and Glyndwr](https://openindex.co.uk/constituency/montgomeryshire-and-glyndwr), [Brecon, Radnor and Cwm Tawe](https://openindex.co.uk/constituency/brecon-radnor-and-cwm-tawe), [Ynys Môn](https://openindex.co.uk/constituency/ynys-mon), [Mid and South Pembrokeshire](https://openindex.co.uk/constituency/mid-and-south-pembrokeshire).

## Latest updates for Caerfyrddin

- 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/W07000087

## How to cite

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