Brentford and Isleworth

§ This page provides a baseview of UK constituency, bringing together various information and resources to help you better understand the area of Brentford and Isleworth.

Overview ⁞ Brentford and Isleworth, in west London, combine riverside living with historic charm. Brentford lies at the meeting of the River Thames and the Grand Union Canal, offering waterside pubs, Syon House, and Kew Gardens nearby. Isleworth boasts historic buildings, riverside walks, and Osterley Park, a grand National Trust estate. The area is well connected by rail and road, with easy access to Heathrow Airport and central London.

Constituency Map and Boundary Information

Below is an interactive map showing the boundary of the Brentford and Isleworth parliamentary constituency. The boundary data is sourced from the Office for National Statistics (ONS), using the latest official geographic definitions.

You can explore official statistics for this area on the ONS Explore Local Statistics page, or view its location on the UK Parliament constituency map.

Map tiles © OpenStreetMap contributors. Boundary data: Contains Ordnance Survey data © Crown copyright and database right 2024; Contains Office for National Statistics data © ONS 2024, licensed under the Open Government Licence v3.0.

Wards in Brentford and Isleworth

Brentford and Isleworth is divided into 11 wards, listed below in alphabetical order.

  • Brentford East
  • Brentford West
  • Heston East
  • Hounslow Central
  • Hounslow East
  • Hounslow Heath
  • Hounslow South
  • Isleworth
  • Osterley & Spring Grove
  • Syon & Brentford Lock
  • Whitton

Brentford and Isleworth is a constituency that covers these wards in Hounslow / Richmond upon Thames.

Wards and constituencies: wards are the smallest electoral areas used to elect local councillors who make decisions about local services, while parliamentary constituencies are much larger areas used to elect one MP to represent them in the House of Commons. In simple terms, wards are for local council elections, and constituencies are for national parliamentary elections.

Population by age group

The most recent data for constituencies in England and Wales comes from mid-year estimates for 2022. This tells us what the population was estimated to be on 30 June 2022.

Population by age group, June 2022
Age Band Constituency (Number) Constituency (%) Region (Number) Region (%) England & Wales (Number) England & Wales (%)
0 to 17 29,503 22.84% 1,896,862 21.39% 12,506,535 20.76%
18 to 24 9,451 7.32% 804,899 9.08% 5,008,522 8.31%
25 to 34 20,186 15.62% 1,598,208 18.03% 8,098,257 13.44%
35 to 49 32,470 25.13% 1,983,717 22.37% 11,575,752 19.22%
50 to 64 21,988 17.02% 1,511,939 17.05% 11,745,365 19.50%
65 and over 15,600 12.07% 1,070,555 12.07% 11,303,607 18.76%

Population by ethnic group

The most recent census asked people about their ethnic group. The census was carried out in March 2021 in England, Wales and Northern Ireland and in March 2022 in Scotland.

Population by ethnic group March 2021
Ethnic Group Constituency (Number) Constituency (%) Region (%) England & Wales (%)
English, Welsh, Scottish, Northern Irish or British 36,707 28.52% 36.81% 74.42%
Indian 26,508 20.59% 7.46% 3.13%
Other White 19,028 14.78% 14.67% 6.15%
Other Asian 8,636 6.71% 4.56% 1.63%
Pakistani 7,653 5.95% 3.30% 2.66%
Any other ethnic group 6,445 5.01% 4.74% 1.55%
African 6,426 4.99% 7.92% 2.50%
Arab 2,742 2.13% 1.59% 0.56%
Irish 2,218 1.72% 1.78% 0.85%
Other Mixed or Multiple ethnic groups 2,193 1.70% 1.94% 0.78%
White and Asian 2,072 1.61% 1.42% 0.82%
Caribbean 1,702 1.32% 3.93% 1.05%
Chinese 1,335 1.04% 1.68% 0.75%
Bangladeshi 1,305 1.01% 3.66% 1.08%
White and Black Caribbean 1,256 0.98% 1.51% 0.86%
Other Black 996 0.77% 1.66% 0.50%
White and Black African 955 0.74% 0.88% 0.42%
Roma 446 0.35% 0.43% 0.17%
Gypsy or Irish Traveller 103 0.08% 0.08% 0.11%

Brentford and Isleworth compared with other constituencies

Brentford and Isleworth has a population of 132,350 (2024 mid-year estimate by ONS). The population of the UK is 69,281,400 as of mid-2024. There are 650 constituencies, so the average population per constituency is around 106,600.

Population of 650 Constituencies
Population of 650 Constituencies (2024 mid-year estimate) sorted ascending

Compared with the other 649 constituencies, Brentford and Isleworth has a population higher than 614, lower than 21, and similar to 15 constituencies (±2,500, including itself).

ONS Local Statistics for this Constituency

Understanding the social and economic characteristics of this constituency helps residents, community groups, researchers and businesses gain a clearer picture of the local area. ONS provides a wide set of local indicators that describe who lives here, how people work, their health, housing conditions and more.

Below, we highlight three useful measures — Household Deprivation, General Health, and Economic Activity Status — as an accessible introduction to the overall profile of Brentford and Isleworth. These indicators offer a quick snapshot of living conditions, wellbeing and employment patterns.

Go to this ONS web page to explore all local indicators and build your custom profile for Brentford and Isleworth.

ONS provides datasets of 38 indicators across six themes, covering a comprehensive range of local statistics for Brentford and Isleworth:

  • Demography and migration: Population, Number of households, Age profile, Sex, Live births, Deaths, Legal partnership status, Country of birth, Passports held, Length of residence in the UK, Household size, Household composition, Household deprivation.
  • Economy: Distance travelled to work, Method of travel to workplace, Economic activity status, Employment history, Occupation, Socio-economic classification (NS-SeC), Hours per week worked.
  • Education and skills: Highest level of qualification, Schoolchildren and full-time students.
  • Ethnic group, national identity, language and religion: Ethnic group, National identity, Religion, Proficiency in English.
  • Health and wellbeing: General health, Disability, Provision of unpaid care.
  • Housing: Residential property sales, Energy efficiency of housing, Accommodation type, Number of cars or vans, Central heating, Number of bedrooms, Occupancy rating, Tenure of household, Second address indicator.

These indicators provide a well-rounded picture of Brentford and Isleworth and allow you to compare local characteristics with other areas across the UK. The embedded charts just show a simplified starting point, and you are encouraged to explore the full ONS datasets for further detail.

This Constituency Baseview is automatically generated using data from multiple official sources and stored in our database. The underlying programme was last updated on 4 December 2025. We continue to enhance these pages and add new insights, so feel free to check back for updates.