Photo: John Lord · CC BY-SA 2.0Half of Llanwern is under 31.5, younger than 99% of UK towns
Just over a third of households have dependent children; across Wales’s towns the figure is 27%. Locally, nearly one in ten households live in a terraced house. Compared with other places, households in flats are scarce here: 4.8%, fewer than in 84% of UK towns. The 2021 Census put Llanwern’s population at 305, in 125 households.
Llanwern sits below 99% of UK towns for residents aged 65 and over (3.6%)
Share of residents in each five-year age band, Census 2021.
The share of residents aged 15 to 24 tops 73% of UK towns: 11%. Across the comparison, 21% of residents are 65 or over across Wales’s towns.
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.
A higher share of residents who moved in within the year than 99% of UK towns, at 45%
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%.
52% of Llanwern’s adults are in managerial and professional jobs and 12% in routine and semi-routine work, against 29% and 27% across Wales’s towns. Residents who moved in within the year: 9.1% across Wales’s towns, for comparison. For Llanwern, the census puts full-time students at 4.2%.
Llanwern ranks below 99% of UK towns on one-person households: 15%
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.
There is little gap on shared households of unrelated adults: 3.2%, about the same as across Wales’s towns. The benchmark for one-person households across Wales’s towns: 32%. On average, 2.4 people share a household.
Only 7.1% of households have no car or van in Llanwern
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
Where 24% of households live in a detached house across Wales’s towns, Llanwern has 56%. For households without a car or van, the comparison across Wales’s towns is 21%.
Llanwern ranks above 84% of UK towns on residents born outside the UK: 14%
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 20%
Main language · residents aged 3 and over
Residents born abroad were most often born in the Middle East and Asia (6.3%), then in EU countries (4.3%). By way of comparison, 7.4% of residents were born outside the UK across Wales’s towns. Compared with other places, residents whose main language is English are scarce here: 93%, fewer than in 85% of UK towns.
Of Llanwern’s residents, 10% can speak Welsh
Welsh language skills, residents aged 3 and over, Census 2021.
Welsh language skills · residents aged 3 and over
Asked in 2021, 30 residents aged 3 and over, 10%, said they can speak Welsh; across Welsh towns, 16%: fewer than in 67% of Welsh towns. The highest share in Gwent belongs to Abertridwr and Senghenydd (14%).
Llanwern sits above 98% of UK towns for residents with no religion (55%)
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: 82% of Llanwern · Gwent’s towns 91% · Wales’s towns 90%.
Religion · all residents
3.6% of residents are Muslim. Residents who describe themselves as Christian are rarer here than in 99% of UK towns. Set beside that, 47% of residents said they have no religion across Wales’s towns. Across Wales’s towns, the share of residents who describe themselves as White British is 90%; Llanwern has 82%.
44% of adults have never married or formed a civil partnership, more than in 96% 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
Across Wales’s towns, 10% of residents give unpaid care; in Llanwern, 8.7%. Set beside that, 38% of adults have never married or formed a civil partnership across Wales’s towns. Nearly half of adults are married or in a civil partnership.
Qualified to degree level: 44% of adults
Highest qualification, residents 16 and over, Census 2021.
Highest qualification · residents 16 and over
Degree-level qualifications cover 44% of adults in Llanwern, 31% across Wales’s towns; 10% have no qualification, against 20%.
No nearby town is as young as Llanwern
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 |
|---|---|---|---|---|---|
| Llanwern | 305 | — | 31.5 | 3.6% | 35% |
| Langstone | 2,912 | 1.2 mi | 45.3 | 20% | 32% |
| Underwood | 2,134 | 1.5 mi | 36.2 | 15% | 31% |
| Caerleon | 7,329 | 2.6 mi | 47.9 | 25% | 26% |
| Newport | 130,882 | 3 mi | 37.4 | 16% | 31% |
| Ponthir | 1,260 | 3.4 mi | 55.1 | 29% | 23% |
| Undy and Magor | 5,742 | 4.3 mi | 45.9 | 20% | 28% |
| Rogerstone | 7,546 | 6.1 mi | 45 | 21% | 31% |
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 Llanwern’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 Llanwern’s residents
What is the population of Llanwern?
The 2021 Census counted 305 people in Llanwern’s built-up area.
What is the average age in Llanwern?
The median age was 31.5 at the 2021 Census. 11% of residents were 15 to 24 and 3.6% were 65 or over.
How diverse is Llanwern?
82% of residents described themselves as White British in 2021, against 90% across Wales’s towns and 91% across Gwent’s towns. 14% were born outside the UK.
What religion are people in Llanwern?
55% said they had no religion and 31% that they were Christian at the 2021 Census; 3.6% were Muslim and 5.6% didn’t answer.
Is Llanwern good for families?
35% of households had dependent children in 2021, against 27% across Wales’s towns. Schools are on Llanwern’s schools page.
How many people speak Welsh in Llanwern?
30 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.