Photo: andy dolman · CC BY-SA 2.0A lower share of households in flats than 99% of UK towns, at 0.7%
The figure for unpaid carers is 15% in Clydach and 10% across Wales’s towns. The village’s 140 households held 325 residents at the 2021 Census. For Clydach, the census puts residents who describe themselves as White British at 98%. Few places have so few households without a car or van: 9.4% here, fewer than in 86% of UK towns.
In Clydach, 18% of residents are 65 or over, fewer than in 77% of UK towns
Share of residents in each five-year age band, Census 2021.
Just over one in ten residents are aged 15 to 24 across Wales’s towns, against 11% in Clydach. Measured more widely, 21% of residents are 65 or over across Wales’s towns. The median age here is 46.6, higher than in 66% of UK towns.
Broad ages · share of residents
Women and men · all residents
52% women, 48% men
About 92 men for every 100 women. Across Wales, 51% of residents are women.
In Clydach, 4.9% of residents lived at another address a year earlier, fewer than in 99% of UK towns
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%.
Managerial and professional jobs take in 27% of adults here, routine and semi-routine work 33% (Wales’s towns: 29% and 27%). Compared with other places, full-time students are scarce here: 4.4%, fewer than in 67% of UK towns. Across Wales’s towns, residents who moved in within the year come to 9.1%.
Clydach ranks below 99% of UK towns on shared households of unrelated adults: 0.7%
Household make-up at the 2021 Census. Each square is 1% of households.
Against Gwent’s towns and Wales’s towns
People per household
Wales’s towns.
The average household has 2.4 people, against 2.3 across Wales’s towns. The benchmark for shared households of unrelated adults across Wales’s towns: 3.1%. Census figures put one-person households at 26% in Clydach. Households with dependent children are more common here than in 56% of UK towns.
Clydach ranks below 71% of UK towns on households in detached houses: 21%
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
Households in terraced houses: 22%, above 56% of UK towns. Across Wales’s towns, the share of households in detached houses is 24%.
A larger share of residents whose main language is English than 97% of UK towns: 99%
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 10%
Main language · residents aged 3 and over
By birthplace, the largest groups from abroad were born in EU countries (1.5%) and in Africa (1.2%). Across Wales’s towns, residents whose main language is English come to 96%. Residents born outside the UK are rarer here than in 86% of UK towns.
Of Clydach’s residents, 10% can speak Welsh
Welsh language skills, residents aged 3 and over, Census 2021.
Welsh language skills · residents aged 3 and over
10% of residents aged 3 and over, 32 people, said in 2021 that they can speak Welsh, fewer than in 67% of Welsh towns (Welsh towns: 16%). Within Gwent, Abertridwr and Senghenydd has the largest share, 14%.
49% of residents said they have no religion, more than in 91% 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: 98% of Clydach · Gwent’s towns 91% · Wales’s towns 90%.
Religion · all residents
Clydach sits close to the norm on residents who describe themselves as Christian: 43%, about the same as across Wales’s towns. Elsewhere, 47% of residents said they have no religion across Wales’s towns.
In Clydach, 42% of adults are married or in a civil partnership, fewer than in 85% 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
13 people care, unpaid, for 50 hours or more a week. Measured more widely, 43% of adults are married or in a civil partnership across Wales’s towns. Clydach has more adults who have never married than 81% of UK towns, at 38%.
32% of adults hold a degree-level qualification
Highest qualification, residents 16 and over, Census 2021.
Highest qualification · residents 16 and over
Across Wales’s towns, 20% of adults have no qualification; in Clydach, 18%, while 32% hold one at degree level (31%).
Among its 7 nearest neighbours, 3 are older than Clydach
Nearby built-up areas coloured by median age, Census 2021. Tap a town for its page.
Health, work and homes have their own pages
What this data can and can’t tell you
- “Gwent’s towns” and “Wales’s towns” mean their built-up areas. Census comparisons pool every built-up area in Gwent (or Wales), summed the same way as Clydach’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 Clydach’s residents
What is the population of Clydach?
The 2021 Census counted 325 people in Clydach’s built-up area.
What is the average age in Clydach?
The median age was 46.6 at the 2021 Census. 11% of residents were 15 to 24 and 18% were 65 or over.
How diverse is Clydach?
98% of residents described themselves as White British in 2021, against 90% across Wales’s towns and 91% across Gwent’s towns. 3.4% were born outside the UK.
What religion are people in Clydach?
49% said they had no religion and 43% that they were Christian at the 2021 Census; 0% were Muslim and 5% didn’t answer.
Is Clydach good for families?
28% of households had dependent children in 2021, against 27% across Wales’s towns. Schools are on Clydach’s schools page.
How many people speak Welsh in Clydach?
32 residents aged 3 and over, 10%, said they can speak Welsh at the 2021 Census, against 16% across Welsh towns.
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, TS032). 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.