Constituency view

Brentford and Isleworth

London, England

Lab hold

Current MP

Current representation

Ruth Cadbury

Labour

Female

Majority9,824

Turnout57.0%

Electorate79,423

Valid votes45,254

2024 Results

Party breakdown

Labour20,007 - 44.2%

Conservative10,183 - 22.5%

Green4,029 - 8.9%

Reform3,940 - 8.7%

Lib Dem3,863 - 8.5%

Other3,232 - 7.1%

Benefits bill · 2025/26

£329,714,058

Estimated yearly spend on the six main working-age and disability benefits paid to residents of this constituency.

£2,491 total benefits bill per resident · 10% above average

Brentford and Isleworth: £2,491
England and Wales average: £2,259

Ranked 195 of 575 constituencies (1 = highest)

Total benefits bill	£329,714,058	104/575
Change over 2 years	+17.4%
Median local wage (2025)	£46,776	+16.2%

Universal Credit£229,127,667
£1,731 per resident · 15,578 households claiming
Assessed LCWRA: 4,653 · 1 in 19 working-age adults
Personal Independence Payment£45,920,277
£347 per resident · 6,157 claimants (+22.9% since Jul 2024)
Psychiatric conditions: 2,368 · 39% of claimants
Enhanced mobility (Motability-eligible): 3,136
Housing Benefit£28,638,166
£216 per resident · 2,776 claimants
Disability Living Allowance£13,018,304
£98 per resident · 2,193 claimants
Carer's Allowance£7,848,304
£59 per resident · 1,817 claimants
Employment Support Allowance£5,161,340
£39 per resident · 828 claimants

Ranks are out of England and Wales constituencies, highest first. Source: TaxPayers' Alliance, benefitsdata.uk (estimated from DWP Stat-Xplore claimant counts). England and Wales only. See this seat on benefitsdata.uk ↗

Demographics

Source: ONS Census 2021 (England, Wales, NI) and Scotland's Census 2022, aggregated to 2024 constituency boundaries by the House of Commons Library.

Ethnic composition

2021

White 45.4%White British 28.5%Asian 35.3%Black, African or Caribbean 7.1%Mixed or Multiple ethnic groups 5.0%Other 7.1%

England & Wales (2021)

White 83.0%White British 74.4%Asian 8.6%Black, African or Caribbean 3.7%Mixed or Multiple ethnic groups 2.7%Other 2.0%

2011

White 49.8%White British 35.5%Asian 35.5%Black, African or Caribbean 6.5%Mixed or Multiple ethnic groups 4.3%Other 3.9%

England & Wales (2011)

White 86.0%White British 80.5%Asian 7.5%Black, African or Caribbean 3.3%Mixed or Multiple ethnic groups 2.2%Other 1.0%

2001

White 63.2%White British 54.0%Asian 26.8%Black, African or Caribbean 4.5%Mixed or Multiple ethnic groups 3.2%Other 2.2%

England & Wales (2001)

White 91.3%White British 87.5%Asian 4.8%Black, African or Caribbean 2.2%Mixed or Multiple ethnic groups 1.3%Other 0.4%

1991

White 77.9%White British N/AAsian 16.5%Black, African or Caribbean 3.3%Mixed or Multiple ethnic groups 0.0%Other 2.2%

England & Wales (1991)

White 94.1%White British N/AAsian 3.6%Black, African or Caribbean 1.8%Mixed or Multiple ethnic groups 0.0%Other 0.6%

Year-over-year comparison uses broad ethnic groups.

2011 values are reaggregated from 2011 Output Areas onto 2024 boundaries.

2001 values are reaggregated from 2001 LSOAs onto 2024 boundaries.

1991 values are reaggregated from 1997 parliamentary constituencies onto 2024 boundaries.

Country of birth

Brentford and Isleworth (2021)

UK 50.7%Other EU 13.6%Other countries 35.7%

England & Wales (2021)

UK 84.0%Other EU 6.0%Other countries 10.1%

Brentford and Isleworth (2011)

UK 55.1%Other EU 9.4%Other countries 35.5%

England & Wales (2011)

UK 86.6%Other EU 3.6%Other countries 9.8%

Brentford and Isleworth (2001)

UK 69.6%Other EU 2.3%Other countries 28.1%

England & Wales (2001)

UK 91.1%Other EU 1.4%Other countries 7.5%

Brentford and Isleworth (1991)

UK 75.0%Other EU 7.1%Other countries 17.9%

England & Wales (1991)

UK 92.7%Other EU 2.5%Other countries 4.8%

1991 country of birth data uses the 1991 census's Commonwealth-based classification. Ireland and EU countries are not separately broken out. Regional figures are approximations.

Inset map

Brentford and Isleworth

Loading constituency outline.

Comparison

How this seat compares

Metric	Brentford and Isleworth	National	Difference	Rank
% White	45.4%	83.0%	-37.6pp	622/650
% White British	28.5%	74.4%	-45.9pp	605/632
% Asian	35.3%	8.6%	+26.7pp	25/650
% Black, African or Caribbean	7.1%	3.7%	+3.4pp	92/650
% Mixed or Multiple ethnic groups	5.0%	2.7%	+2.4pp	69/650
% Other ethnic group	7.1%	2.0%	+5.2pp	28/650
% UK-born	50.7%	84.0%	-33.2pp	633/650
% Non-UK-born	49.3%	16.0%	+33.2pp	18/650
% Other EU-born	13.6%	6.0%	+7.6pp	38/650
% Other countries-born	35.7%	10.1%	+25.6pp	13/650
% Christian	39.0%	46.7%	-7.7pp	501/575
% Muslim	16.7%	6.3%	+10.4pp	55/575
% Hindu	10.2%	1.6%	+8.6pp	8/575
% Sikh	7.6%	0.9%	+6.7pp	13/575
% Jewish	0.2%	0.5%	-0.3pp	193/575
% Buddhist	1.1%	0.4%	+0.7pp	13/575
% Other religion	0.9%	0.6%	+0.3pp	41/575
% No religion	18.2%	37.0%	-18.8pp	553/575
% Religion not stated	6.1%	6.0%	+0.1pp	210/575
% Has any religion	75.7%	57.0%	+18.7pp	25/575

Nearby seats

Constituencies around Brentford and Isleworth

Neighbouring constituencies on 2024 boundaries, ordered by the length of the shared border.

Source: ONS Westminster Parliamentary Constituencies (July 2024) Boundaries UK BSC. Seats with a short coastline or none, such as islands, are completed with the closest constituencies by distance.