Hayes and Harlington: MP, 2024 result and local figures
Hayes and Harlington is represented in the House of Commons by John McDonnell (Labour). John McDonnell took the seat for Labour in July 2024 with 20,405 votes (53.3%), ahead of Dylan Thomas (Conservative) on 8,374. 38,315 valid votes were cast by an electorate of 74,405, 51.5% of those registered. The majority was 12,031.
Key figures
What the figures show
Two figures set Hayes and Harlington apart: the 7th highest population of the 575 constituencies with this figure (141,145), and the 23rd lowest economic inactivity rate of the 632 constituencies with this figure (11.6%).
The ONS estimates 141,145 people lived in Hayes and Harlington in mid-2024, up 19.2% on 2014. There were more children under 16 (30,165) than residents aged 65 and over (13,671).
10,834 children in Hayes and Harlington were in relative low income families after housing costs in 2024/25, the Department for Work and Pensions estimates: 35.9% of under-16s, where the UK share is 26.0%. On the before-housing-costs measure it rose from 17.6% in 2021/22 to 19.6% in 2024/25.
Workplaces in Hayes and Harlington accounted for 99,000 jobs in 2024; the business register lists 6,760 local units for March 2026.
The median price paid for a home was £465,000 in the year to March 2026 (ONS, from HM Land Registry data). Ten years earlier, in the year to March 2016, it was £316,000. It is the highest March-year median in the series, which starts in 1996. It ranks 84th highest of 575 constituencies. 540 sales were registered in the period, against 765 in the year to March 2025.
Survey estimates for April 2025 to March 2026 have 79.3% of working-age residents in employment, within a margin of 9.9 points. 11.6% were economically inactive.
At the 2021 Census there were 41,383 households and 2,807.2 residents per square kilometre; 22.7% of workers mainly worked from home and 11.5% of residents aged 16 and over were retired.
Median annual pay for full-time work was £41,041 for jobs in Hayes and Harlington and £37,142 for its residents (April 2025, ASHE). In April 2024 the residents' figure was £36,043. The residents' figure ranks 250th lowest of 632 constituencies with an estimate. The latest year is provisional.
The claimant count for September 2026 was 5,935, or 6.1% of the working-age population. September 2025 had 5,790.
MP
John McDonnell, Labour
- MP for Hayes and Harlington since 4 July 2024
- In the House of Commons since 1 May 1997
Official UK Parliament page · Statements by John McDonnell on this site
In Parliament
What John McDonnell said most recently in Parliament, word for word from Hansard (from 20 October 2026 to 26 October 2026). Hansard search returns 287 spoken contributions by John McDonnell since 4 July 2024.
I am the chair of the Public and Commercial Services Union parliamentary group. I think we all appreciate that my hon. Friend has inherited a scandal, and I thank her for the access that she has given to the unions and for working with them closely.
Read in Hansard (opening words; the full contribution is longer)
I have been an enthusiastic supporter of the Government’s policy on developing alternative energy sources, successfully undertaken by the former Secretary of State, my right hon.
Read in Hansard (opening words; the full contribution is longer)
I apologise to the Committee for having to leave the Chamber earlier to attend a debate in Westminster Hall. It was about Heathrow expansion yet again, and 17,000 of my constituents are threatened with the loss of their homes, so that is why I attended.
Read in Hansard (opening words; the full contribution is longer)
I just want to raise the issue of jobs again. In the Select Committee inquiry, one of the representatives who gave information about jobs said that there was a real concern that if the company flounders on the financing for this project, as it almost certainly will, it will come …
Read in Hansard (opening words; the full contribution is longer)
I understand the difficulty that the Minister is in, and I have a lot of sympathy for him; I would not want to be associated with this thing either. There is one issue that I would like him to write to us on.
Read in Hansard (opening words; the full contribution is longer)
Read from the Hansard API on 27 October 2026. Up to two items per debate; remarks under 40 characters are left out. All contributions in Hansard.
General election, 4 July 2024
| Candidate | Party | Votes | Share | Change in share |
|---|---|---|---|---|
| John McDonnell | Labour | 20,405 | 53.3% | −2.5 |
| Dylan Thomas | Conservative | 8,374 | 21.9% | −12.9 |
| Francoise Thompson | Reform UK | 4,114 | 10.7% | +7.8 |
| Christine West | Green Party | 2,131 | 5.6% | +3.9 |
| Rizwana Karim | Workers Party of Britain | 1,975 | 5.2% | |
| Alexander Cunliffe | Liberal Democrat | 1,316 | 3.4% | −1.0 |
Result summary as published: Lab hold. Change in share is in percentage points against the notional 2019 result on the new boundaries. Source: House of Commons Library, election results (data, read 14 October 2026).
Results on these boundaries
| Date | Election | First | Second | Majority | Turnout |
|---|---|---|---|---|---|
| 4 July 2024 | General election | Labour 53.3% | Conservative 21.9% | 12,031 | 51.5% |
| 12 December 2019 | General election (notional result on these boundaries) | Labour 55.8% | Conservative 34.7% | 9,261 | 60.4% |
Only results on the constituency boundaries first used at the 2024 general election are shown. The 2019 figures are the House of Commons Library's notional estimates of how votes cast in 2019 would have fallen on these boundaries, not a result that was declared. Source: House of Commons Library, constituency results.
Councils
Hayes and Harlington lies within Hillingdon.
- Hillingdon E09000017
Who has power over Hayes and Harlington
Every body that makes decisions for Hayes and Harlington, from the street up to the G20. Each one links to its page on the official record. How the ten levels work.
Level 1: Neighbourhood and community power
Residents' and tenants' groups, neighbourhood forums and local policing panels.
Level 2: Parish, town and community councils
Parish, town and community councils, where the area has them, sit below the council.
Level 3: Local councils
Level 5: Devolved and state governments
England has no devolved parliament of its own: its laws are made by the UK Parliament.
Level 6: National government
- Hayes and Harlington this page: John McDonnell (Labour) MP
- All 650 MPs votes, interests and costs
- UK government and Parliament official figures and sources
Level 7: Regional blocs and supranational bodies
- Council of Europe and the European Court of Human Rights (CoE / ECtHR) The UK Government says the United Kingdom was one of the Council of Europe's founding members.
Level 8: The UN and global treaty bodies
- United Nations (General Assembly and Security Council) The UN lists the United Kingdom as a member admitted on 24 October 1945.
- United Nations Security Council (UNSC) The UK is one of the five permanent members of the Security Council and holds the veto, according to the UN.
- NATO NATO lists the United Kingdom among its 12 founding members, which signed the North Atlantic Treaty in Washington, D.C.
- World Health Organization (WHO) WHO's list of member states includes the United Kingdom of Great Britain and Northern Ireland.
- World Trade Organization (WTO) The WTO says the United Kingdom has been a WTO member since 1 January 1995 and a member of GATT since 1 January 1948.
- Commonwealth of Nations The UK is one of the 56 members, one of three European members with Cyprus and Malta, and the Commonwealth Secretariat is headquartered at Marlborough House in London.
Level 9: The IMF, World Bank and global finance
- International Monetary Fund (IMF) The UK has been a member since 27 December 1945 and has a quota of SDR 20,155.1 million (IMF country page for the United Kingdom).
- World Bank Group (WBG) The UK holds 3.75% of voting power in the IBRD (data as of 30 June 2026) and 6.92% in IDA (as of 30 June 2026), according to the World Bank's voting tables.
Level 10: G7, G20, Davos and global forums
Sources
| Figure | Period | Publisher | Read | Links |
|---|---|---|---|---|
| Population | mid-2024 | ONS | 14 October 2026 | data · area |
| Claimants as a share of residents aged 16 to 64 | September 2026 | ONS | 29 October 2026 | data · area |
| Claimant count | September 2026 | ONS | 29 October 2026 | data · area |
| Employment rate, aged 16 to 64 | April 2025 to March 2026 | ONS | 14 October 2026 | data · area |
| Median full-time pay of residents | April 2025 | ONS | 14 October 2026 | data · area |
| Median full-time pay of people working here | April 2025 | ONS | 14 October 2026 | data · area |
| Median house price | the year to March 2026 | ONS | 14 October 2026 | data · release |
| Homes sold | the year to March 2026 | ONS | 14 October 2026 | data · release |
| Children in relative low income families, after housing costs | 2024/25 | DWP | 14 October 2026 | data · release |
| Children in relative low income families, before housing costs | 2024/25 | DWP | 14 October 2026 | data · release |
| Business sites (local units) | March 2026 | ONS | 14 October 2026 | data · area |
| People employed by businesses here | 2024 | ONS | 14 October 2026 | data · area |
| Economically inactive, aged 16 to 64 | April 2025 to March 2026 | ONS | 14 October 2026 | data · area |
| Households | Census 2021 | ONS | 14 October 2026 | data · area |
| Residents per square kilometre | Census 2021 | ONS | 14 October 2026 | data · area |
| Workers mainly working from home | Census 2021 | ONS | 14 October 2026 | data · area |
| Residents aged 16+ who are retired | Census 2021 | ONS | 14 October 2026 | data · area |
"Data" is the file or query each figure was read from (its SHA-256 is in the link title); "area" shows the same table for this constituency alone.
Common questions
Who is the MP for Hayes and Harlington?
John McDonnell (Labour), elected on 4 July 2024, according to UK Parliament records.
What was the 2024 general election result in Hayes and Harlington?
The House of Commons Library records 20,405 votes for John McDonnell of Labour and a majority of 12,031; 51.5% of the electorate cast a valid vote.
What is the unemployment claimant rate in Hayes and Harlington?
The ONS claimant count for September 2026 is 5,935, 6.1% of the 16 to 64 population.
What is the average house price in Hayes and Harlington?
£465,000: the middle price of homes sold in the year to March 2026, published by the ONS from Land Registry records.
What is the average salary in Hayes and Harlington?
For full-time employees living here the ONS puts median annual pay at £37,142 (April 2025).
How many children in Hayes and Harlington live in low income families?
10,834 children under 16, 35.9%, after housing costs in 2024/25, according to the Department for Work and Pensions.
What is the population of Hayes and Harlington?
141,145 in mid-2024, the latest ONS estimate.
Built 14 October 2026 from official records; how these pages are compiled. This page lists what the record shows and gives no verdict on the MP or the area. Link moved or figure wrong? Tell us.