Photo: Des Blenkinsopp · CC BY-SA 2.0Colnbrook is younger than 93% of UK towns: a median age of 36.5
By its share of households in detached houses (5.2%), Colnbrook is below 98% of UK towns. Census day 2021: 1,898 residents and 786 households locally. Locally, 34% of households have dependent children. One-person households are more common here than in 79% of UK towns.
What the Census says about Colnbrook’s people
More born abroad than most towns
35% of residents were born outside the UK, against 25% across Berkshire’s towns and 18% across England’s towns. The largest groups were born in EU countries (16%) and in the Middle East and Asia (11%). Where people were born ↓
A mix of backgrounds
51% of residents described their ethnic group as something other than White British at the 2021 Census, more than in 98% of UK towns. The largest groups after White British are Other White (18%), Indian (11%) and Mixed or multiple (4.4%). Ethnicity & religion ↓
Younger than most towns
Half of Colnbrook’s residents are under 36.5 and half over, against 44.4 in the typical UK town. 9.6% are 15 to 24 and 7.7% are 65 or over. Ages ↓
A village of flats
44% of households live in a flat or maisonette, more than in 99% of UK towns. 19% have no car or van. Homes & cars ↓
Written from the data on this page: ONS Census 2021 (output areas summed to the 2022 built-up area).
In Colnbrook, 7.7% of residents are 65 or over, fewer than in 99% of UK towns
Share of residents in each five-year age band, Census 2021.
Where 12% of residents are aged 15 to 24 across England’s towns, Colnbrook has 9.6%. By way of comparison, 18% of residents are 65 or over across England’s towns.
Broad ages · share of residents
Women and men · all residents
49% women, 51% men
About an even split. Across England, 51% of residents are women.
Colnbrook sits above 75% of UK towns for full-time students (5.5%)
What adults did at the 2021 Census (the ONS’s NS-SEC classes), and where residents lived a year earlier.
Adults by occupation class · residents 16 and over
Address a year before the Census
Residents who lived somewhere else a year earlier. The bar runs to 25%.
Against a figure of 11% across England’s towns, the share of residents who moved in within the year in Colnbrook comes in at 10%. By way of comparison, 7.9% of adults are full-time students across England’s towns.
The Census was taken on 21 March 2021, in term time, so students were counted at their term addresses.
Larger households than 76% of UK towns: 2.4 people on average
Household make-up at the 2021 Census. Each square is 1% of households.
Against Berkshire’s towns and England’s towns
People per household
England’s towns.
On shared households of unrelated adults, 4.1% here is much the same as across England’s towns.
Above 99% of UK towns: 44% of households live in a flat or apartment
Accommodation type and cars or vans per household, Census 2021. Owning and renting are on Cost of living.
Type of home
Cars or vans · share of households
19% of households have no car or van (England’s towns: 24%). In Colnbrook, 25% of households live in a terraced house. The share of households in flats across England’s towns is 23%.
Colnbrook sits above 98% of UK towns for residents born outside the UK (35%)
Country of birth, year of arrival and main language, Census 2021.
Born outside the UK, by region · share of all residents; the bar runs to 40%
When those born abroad arrived
Main language · residents aged 3 and over
Among residents born abroad, the largest groups were born in EU countries (16%) and in the Middle East and Asia (11%). Colnbrook has fewer residents whose main language is English than 99% of UK towns, at 79%. The benchmark for residents born outside the UK across England’s towns: 18%. Born abroad and arrived since 2017: 17% of that group, against 21% across England’s towns.
24% said they have no religion, fewer than in 98% of UK towns
How residents described themselves at the 2021 Census. Lines join the lowest and highest of the three figures.
Ethnic groups other than White British · all residents
White British, not charted: 49% of Colnbrook · Berkshire’s towns 62% · England’s towns 73%.
Religion · all residents
49% of residents describe themselves as White British; across England’s towns the figure is 73%. Across England’s towns, residents with no religion come to 37%. Leading the other groups after White British: Other White (18%), Indian (11%) and Mixed or multiple (4.4%).
Adults who have never married make up 43% in Colnbrook, more than in 94% of UK towns
Legal partnership status (residents 16 and over) and unpaid care (residents 5 and over), Census 2021.
Partnership status · residents 16 and over
Unpaid care given · share of residents 5 and over
Unpaid care takes 50 hours a week or more for 40 people. Colnbrook has fewer unpaid carers than 98% of UK towns, at 6.3%. For comparison, nearly two in five adults have never married or formed a civil partnership across England’s towns.
The share of adults with a degree-level qualification: 31%
Highest qualification, residents 16 and over, Census 2021.
Highest qualification · residents 16 and over
31% of Colnbrook’s adults have a degree-level qualification, against 34% across England’s towns; 20% have none (18%).
Every neighbour of Colnbrook has an older population
Nearby built-up areas coloured by median age, Census 2021. Tap a town for its page.
| Town | People | Away | Median age | 65+ | Homes with children |
|---|---|---|---|---|---|
| Colnbrook | 1,898 | — | 36.5 | 7.7% | 34% |
| Poyle | 1,736 | 0.6 mi | 37.3 | 11% | 35% |
| Richings Park | 1,787 | 1.7 mi | 40.8 | 17% | 36% |
| Stanwell Moor | 1,431 | 1.9 mi | 40.3 | 16% | 32% |
| Datchet | 4,807 | 2 mi | 42.6 | 18% | 29% |
| Iver | 3,267 | 2.5 mi | 40.2 | 16% | 30% |
| Old Windsor and Wraysbury | 7,689 | 2.7 mi | 47.3 | 23% | 28% |
| Stanwell | 11,728 | 3.1 mi | 36.6 | 12% | 36% |
Health, work and homes have their own pages
What this data can and can’t tell you
- The Census was taken in a lockdown, in term time. 21 March 2021 fell in term time, and students were asked to give their term-time address, so most were counted where they study. Some may have been living with family that day.
- “Berkshire’s towns” and “England’s towns” mean their built-up areas. Census comparisons pool every built-up area in Berkshire (or England), summed the same way as Colnbrook’s figures, so households in open countryside are left out.
- Small counts are blurred. The ONS adds small random changes to Census counts to protect privacy, so the same total differs a little between tables, and the shares of a small town can move by a point or two.
Questions about Colnbrook’s residents
What is the population of Colnbrook?
The 2021 Census counted 1,898 people in Colnbrook’s built-up area.
What is the average age in Colnbrook?
The median age was 36.5 at the 2021 Census. 9.6% of residents were 15 to 24 and 7.7% were 65 or over.
How diverse is Colnbrook?
49% of residents described themselves as White British in 2021, against 73% across England’s towns and 62% across Berkshire’s towns. 35% were born outside the UK.
What religion are people in Colnbrook?
24% said they had no religion and 50% that they were Christian at the 2021 Census; 9.7% were Muslim and 4.8% didn’t answer.
Is Colnbrook good for families?
34% of households had dependent children in 2021, against 29% across England’s towns. Schools are on Colnbrook’s schools page.
Sources: ONS Census 2021, output areas summed to the ONS 2022 built-up area (TS002, TS003, TS004, TS007A, TS008, TS015, TS017, TS019, TS021, TS029, TS030, TS039, TS044, TS045, TS062, TS067). All under the Open Government Licence v3.0.
Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2026. Contains OS data © Crown copyright and database right 2026 (ONS boundaries). Northern Ireland: Source: NISRA; contains Land & Property Services data and Ordnance Survey of Northern Ireland information, © Crown copyright, licensed under the Open Government Licence v3.0. Scotland: contains National Records of Scotland data, Registers of Scotland data and SEPA data, © Crown copyright / © SEPA 2025, licensed under the Open Government Licence v3.0.