Photo: Bill Boaden · CC BY-SA 2.0Households in flats make up 1.2% in Upper Killay, less than in 99% of UK towns
Residents aged 15 to 24: 8.1%, below 92% of UK towns. At the 2021 Census Upper Killay was home to 937 people in 406 households. For Upper Killay, the census puts adults who have never married at 27%. More households in detached houses than in four fifths of UK towns: 42%.
Half of Upper Killay is over 49.7, older than 83% of UK towns
Share of residents in each five-year age band, Census 2021.
The largest age band is 55–59: nearly one in ten residents. At 29%, the share of residents aged 65 and over is higher than in 87% of UK towns. In Bishopston, the oldest of West Glamorgan’s towns by this measure, it is 34%.
Broad ages · share of residents
Women and men · all residents
51% women, 49% men
About an even split. Across Wales, 51% of residents are women.
In Upper Killay, 4.8% 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%.
38% of Upper Killay’s adults are in managerial and professional jobs and 20% in routine and semi-routine work, against 29% and 27% across Wales’s towns. Full-time students are more common here than in 72% of UK towns. The benchmark for residents who moved in within the year across Wales’s towns: 9.1%.
The Census was taken on 21 March 2021, in term time, so students were counted at their term addresses.
A smaller share of one-person households than 75% of UK towns: 27%
Household make-up at the 2021 Census. Each square is 1% of households.
Against West Glamorgan’s towns and Wales’s towns
People per household
Wales’s towns.
By its share of shared households of unrelated adults (1.7%), Upper Killay is below 83% of UK towns. Typically, 32% of households are one person living alone across Wales’s towns. The census found that a quarter of households have dependent children locally.
A lower share of households in terraced houses than 91% of UK towns, at 9.3%
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
Across Wales’s towns, 21% of households have no car or van; in Upper Killay, 11%. Set beside that, 29% of households live in a terraced house across Wales’s towns.
99% of residents have English as their main language, more than in 77% of UK towns
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
In Upper Killay, 5.7% of residents were born outside the UK, beside 7.4% across Wales’s towns. Across Wales’s towns, the share of residents whose main language is English is 96%. Residents born abroad were most often born in the Middle East and Asia (3.2%), then in EU countries (1.4%).
Upper Killay’s residents: 7.7% speak Welsh
Welsh language skills, residents aged 3 and over, Census 2021.
Welsh language skills · residents aged 3 and over
71 residents, 7.7% of those aged 3 and over, said they can speak Welsh at the 2021 Census, against 16% across Welsh towns: fewer than in 91% of Welsh towns. The highest share in West Glamorgan belongs to Gwaun-Cae-Gurwen (49%).
48% of residents said they have no religion, a share 89% of UK towns don’t reach
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: 93% of Upper Killay · West Glamorgan’s towns 90% · Wales’s towns 90%.
Religion · all residents
Set against 43% across Wales’s towns, just over two in five residents describe themselves as Christian in Upper Killay. For comparison, 47% of residents said they have no religion across Wales’s towns. Islam is the religion of 2.1% of residents. Few places have as many residents who describe themselves as White British: 93% here, more than in 58% of UK towns.
15% of residents give unpaid care, more than in 99% 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
44 residents give 50 hours or more of unpaid care each week. Against that, one in ten residents give unpaid care across Wales’s towns. Married adults and civil partners are more common here than in 74% of UK towns.
The share of adults with a degree-level qualification: 39%
Highest qualification, residents 16 and over, Census 2021.
Highest qualification · residents 16 and over
Degree-level qualifications are held by 39% of adults in Upper Killay (Wales’s towns: 31%), and no qualification by 16% (Wales’s towns: 20%).
Upper Killay is younger than 3 of its 7 nearest neighbours
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 |
|---|---|---|---|---|---|
| Upper Killay | 937 | — | 49.7 | 29% | 25% |
| Dunvant | 1,732 | 1 mi | 46.7 | 26% | 28% |
| Three Crosses | 1,476 | 1.6 mi | 50.1 | 27% | 27% |
| Gowerton | 7,447 | 2.1 mi | 46.8 | 23% | 26% |
| Bishopston | 3,533 | 2.2 mi | 53.8 | 34% | 24% |
| Southgate | 1,938 | 3.5 mi | 55.1 | 35% | 23% |
| Pen-clawdd | 1,655 | 3.5 mi | 48.3 | 26% | 23% |
| Loughor | 4,632 | 3.7 mi | 43.9 | 22% | 28% |
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.
- “West Glamorgan’s towns” and “Wales’s towns” mean their built-up areas. Census comparisons pool every built-up area in West Glamorgan (or Wales), summed the same way as Upper Killay’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 Upper Killay’s residents
What is the population of Upper Killay?
The 2021 Census counted 937 people in Upper Killay’s built-up area.
What is the average age in Upper Killay?
The median age was 49.7 at the 2021 Census. 8.1% of residents were 15 to 24 and 29% were 65 or over.
How diverse is Upper Killay?
93% of residents described themselves as White British in 2021, against 90% across Wales’s towns and 90% across West Glamorgan’s towns. 5.7% were born outside the UK.
What religion are people in Upper Killay?
48% said they had no religion and 42% that they were Christian at the 2021 Census; 2.1% were Muslim and 6.8% didn’t answer.
Is Upper Killay good for families?
25% of households had dependent children in 2021, against 27% across Wales’s towns. Schools are on Upper Killay’s schools page.
How many people speak Welsh in Upper Killay?
71 residents aged 3 and over, 7.7%, 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.