# Hayes and Harlington

West London. About 141,145 people (mid-2024 estimate) in 45 square kilometres.

John McDonnell has been the Labour MP for Hayes and Harlington since July 2024. They won by 12,031 votes on a 51.5% turnout.

Constituency. Code E14001276. In: [London](https://openindex.co.uk/london)

## MP and the 2024 result

John McDonnell has been the Labour MP for Hayes and Harlington since July 2024.
They won by 12,031 votes on a 51.5% turnout.

MP: [John McDonnell](https://members.parliament.uk/member/178) (Labour).

### General election, 4 July 2024: Hayes and Harlington

| Candidate | Party | Votes | Share |
| --- | --- | --- | --- |
| John McDonnell (elected) | Labour | 20,405 | 53.3% |
| Dylan Thomas | Conservative | 8,374 | 21.9% |
| Francoise Thompson | Reform UK | 4,114 | 10.7% |
| Christine West | Green Party | 2,131 | 5.6% |
| Rizwana Karim | Workers Party of Britain | 1,975 | 5.2% |
| Alexander Cunliffe | Liberal Democrat | 1,316 | 3.4% |

Electorate 74,405. Turnout 51.5%. Majority 12,031 (31.4%). 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/3526

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: 31.4%** (July 2024). The winner in Hayes and Harlington had a majority of 31.4% of valid votes at the general election on 4 July 2024 (House of Commons Library). Joint 82nd largest majority of 650. Source: UK Parliament election results, July 2024. Published 4 July 2024. https://openindex.co.uk/constituency/hayes-and-harlington#f-ge2024-majority
- **Turnout, 2024 general election: 51.5%** (July 2024). Turnout in Hayes and Harlington at the general election on 4 July 2024 was 51.5% (House of Commons Library). Joint 81st lowest turnout of 650. Source: UK Parliament election results, July 2024. Published 4 July 2024. https://openindex.co.uk/constituency/hayes-and-harlington#f-ge2024-turnout
- **Population: 126,416** (2021). Hayes and Harlington had 126,416 usual residents at the census (ONS Census 2021). 26th 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/hayes-and-harlington#f-population
- **People in radon Affected Area squares: 0%** (2022). About 0% of people in Hayes and Harlington 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/hayes-and-harlington#f-radon-affected-share

## On the map

- [Radon Affected Area by constituency](https://openindex.co.uk/map/radon-affected-areas?place=E14001276) (Worked out by Open Index · 2022): About 0% of people in Hayes and Harlington 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=E14001276) (UK House Price Index · August 2026): Published for whole councils, so the map colours all of Hillingdon, where most of this constituency lies. The outline is Hayes and Harlington.
- [Crime and ASB by council](https://openindex.co.uk/map/recorded-crime?place=E14001276) (Police recorded crime and outcomes (data.police.uk) · August 2026): Published for whole councils, so the map colours all of Hillingdon, where most of this constituency lies. The outline is Hayes and Harlington.
- [Population by constituency](https://openindex.co.uk/map/population?place=E14001276) (Census 2021, England and Wales): Hayes and Harlington had 126,416 usual residents at the census.

## How Hayes and Harlington compares

Each constituency against every other constituency the measure covers.

| Measure | Hayes and Harlington | Rank | Compared with |
| --- | --- | --- | --- |
| Majority, 2024 general election | 31.4% | joint 82nd largest majority | 650 constituencies, UK · Jul 2024 |
| Turnout, 2024 general election | 51.5% | joint 81st lowest turnout | 650 constituencies, UK · Jul 2024 |
| Population | 126,416 | 26th most populated | 650 constituencies, UK · 2021 |
| People in radon Affected Area squares | 0% | joint fewest people in radon Affected Areas | 650 constituencies, UK · 2022 |

## What is the population of Hayes and Harlington?

Hayes and Harlington had 126,416 usual residents at the census.
Hayes and Harlington is the 26th most populated of 650 in the UK.

## Figures for the whole of Hillingdon

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

- **Average house price: £482,137** (August 2026). Hillingdon’s average house price was £482,137 in August 2026 (HM Land Registry). No change in a year. Source: UK House Price Index, August 2026. Published 21 October 2026.
- **Median full-time pay: £42,250** (2025). Full-time workers living in Hillingdon earned a median of £42,250 in 2025 (ONS earnings survey). 98th highest paid of 348. Source: Annual Survey of Hours and Earnings, 2025. Published 23 October 2025.
- **House price to pay: 11.4×** (2025). A home in Hillingdon costs 11.4 times local full-time pay. Joint 29th least affordable of 348. Source: Worked out by Open Index from the UK House Price Index and the ONS earnings survey. Published 21 October 2026.
- **Deprivation score: 20.7** (2025). Hillingdon has a deprivation score of 20.7 in the English Indices of Deprivation 2025 (MHCLG). Joint 127th most deprived of 296. Source: English Indices of Deprivation 2025, 2025. Published 30 October 2025.

## Hayes and Harlington in brief

The winner in Hayes and Harlington had a majority of 31.4% of valid votes at the general election on 4 July 2024.
Turnout in Hayes and Harlington at the general election on 4 July 2024 was 51.5%.
Hayes and Harlington had 126,416 usual residents at the census.
About 0% of people in Hayes and Harlington live in a 1 km square that the radon atlas marks as a radon Affected Area.

## About

- Type: Constituency
- Code: E14001276
- Council: [Hillingdon †](https://openindex.co.uk/hillingdon)
- Region: [London](https://openindex.co.uk/london)
- Nation: [England](https://openindex.co.uk/england)
- Area: 45.04 km²
- People, mid-2024: 141,145*
- Wards: 8
- Middle areas: 12
- Neighbourhoods: 67
- Output areas: 318

* 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

[Uxbridge and South Ruislip](https://openindex.co.uk/constituency/uxbridge-and-south-ruislip), [Feltham and Heston](https://openindex.co.uk/constituency/feltham-and-heston), [Spelthorne](https://openindex.co.uk/constituency/spelthorne), [Ealing Southall](https://openindex.co.uk/constituency/ealing-southall), [Ealing North](https://openindex.co.uk/constituency/ealing-north), [Windsor](https://openindex.co.uk/constituency/windsor)

## Similar places

Constituencies with the closest mix of age and density. [Leeds South](https://openindex.co.uk/constituency/leeds-south), [Bradford West](https://openindex.co.uk/constituency/bradford-west), [Cambridge](https://openindex.co.uk/constituency/cambridge), [Milton Keynes Central](https://openindex.co.uk/constituency/milton-keynes-central), [Leicester West](https://openindex.co.uk/constituency/leicester-west), [Brighton Pavilion](https://openindex.co.uk/constituency/brighton-pavilion).

## Latest updates for Hayes and Harlington

- 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/E14001276

## How to cite

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