Photo: Chris Downer · CC BY-SA 2.0

57Median age

Who lives here · ONS Census 2021

Older than 98% of UK towns: half of Llansteffan is over 57

Households with dependent children make up 19%, against 27% across Wales’s towns. Locally, 21% of adults have never married or formed a civil partnership. Few places have so few households in flats: 3.5% here, fewer than in 90% of UK towns. Llansteffan counted 408 residents and 210 households at the 2021 Census.

35%aged 65 or over 2.5%born abroad 210households

Ages

Residents aged 15 to 24 make up 4.9% in Llansteffan, less than in 99% of UK towns

Share of residents in each five-year age band, Census 2021.

LlansteffanWales’s towns

0–410–1420–2430–3440–4450–5460–6470–7480–84

No age band is larger than 60–64: 9.8% of residents, 1.6 times the share across Wales’s towns. The wider picture: 12% of residents are aged 15 to 24 across Wales’s towns. The census found that just over a third of residents are 65 or over in Llansteffan.

Broad ages · share of residents

Under 1513%

15 to 244.9%

25 to 4414%

45 to 6433%

65 and over35%

LlansteffanDyfed’s townsWales’s towns

Women and men · all residents

54% women, 46% men

Llansteffan

Wales

WomenMen

About 84 men for every 100 women. Across Wales, 51% of residents are women. Women live longer than men, so towns with many older residents have more women.

Students & newcomers

Full-time students: 2.3%, a lower share than 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

Full-time students2.3%

Higher managerial and professional14%

Lower managerial and professional31%

Intermediate9.9%

Small employers and self-employed18%

Supervisory and technical3.7%

Semi-routine9.4%

Routine5.7%

Never worked or long-term unemployed6%

LlansteffanDyfed’s townsWales’s towns

Address a year before the Census

Residents who lived somewhere else a year earlier. The bar runs to 25%.

Llansteffan

5.2%

Wales’s towns

9.8%

Moved within the UKTerm-time addressMoved from abroad

Moved in within a year

residents, 5.2%; Wales’s towns 9.1%

Of them from abroad

1.3× Wales’s share

Against a figure of 9.1% across Wales’s towns, the share of residents who moved in within the year in Llansteffan comes in at 5.2%. As a reference point, 8% of adults are full-time students across Wales’s towns.

Households

2 people per household, fewer than in 96% of UK towns

Household make-up at the 2021 Census. Each square is 1% of households.

Living alone, 66+ 22%Living alone, under 66 11%Families with dependent children 19%Couples and families, no young children 47%Shared houses and other 1%

Against Dyfed’s towns and Wales’s towns

Llansteffan

Dyfed’s towns

Wales’s towns

People per household

1 person35%

2 people40%

3 people13%

4 people9%

5 or more2.5%

Wales’s towns.

The share of shared households of unrelated adults is 1%, against 3.1% across Wales’s towns. Still, at 34%, the share of one-person households is higher than in 81% of UK towns.

Homes & cars

Only 9.6% of households in Llansteffan have no car or van

Accommodation type and cars or vans per household, Census 2021. Owning and renting are on Cost of living.

Type of home

Llansteffan

Dyfed’s towns

Wales’s towns

DetachedSemi-detachedTerracedFlat or maisonetteCaravan or other

Cars or vans · share of households

No car or van9.6%

One44%

Two31%

Three or more15%

LlansteffanDyfed’s townsWales’s towns

In Llansteffan, two in five households live in a detached house, beside 24% across Wales’s towns. About one household in 10 lives without a car or van. Compared with other places, households in terraced houses are common here: 25%, more than in 68% of UK towns.

Where people were born

Llansteffan ranks below 96% of UK towns on residents born outside the UK: 2.5%

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%

Llansteffan

2.5%

Dyfed’s towns

Wales’s towns

7.4%

EU countriesRest of EuropeMiddle East and AsiaAfricaAmericas, Oceania, other

Main language · residents aged 3 and over

English is main language100%

Another main language, speaks English very well or well0.3%

Another main language, little or no English0%

LlansteffanDyfed’s townsWales’s towns

The largest groups were born in Africa (1.2%) and in the Middle East and Asia (0.7%). As a reference point, 7.4% of residents were born outside the UK across Wales’s towns. Higher than in 99% of UK towns: 100% of residents have English as their main language.

Welsh language

Of Llansteffan’s residents, 44% can speak Welsh

Welsh language skills, residents aged 3 and over, Census 2021.

Welsh language skills · residents aged 3 and over

Can speak Welsh44%

Can speak, read and write Welsh30%

Any Welsh skill (including understanding only)60%

LlansteffanDyfed’s townsWales’s towns

Welsh speakers number 176, or 44% of residents aged 3 and over, against 16% across Welsh towns: more than in 89% of them. Top of Dyfed: Tumble, at 62%.

Ethnicity & religion

Above 99% of UK towns: 98% of residents describe themselves as White British

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

LlansteffanDyfed’s townsWales’s towns

Other White0.7%

Asian0.7%

Mixed0.7%

Black0.3%

Other0%

0%3%6%

White British, not charted: 98% of Llansteffan · Dyfed’s towns 93% · Wales’s towns 90%.

Religion · all residents

LlansteffanDyfed’s townsWales’s towns

No religion33%

Christian58%

Muslim0%

Hindu, Sikh, Jewish, Buddhist1.2%

Other religion1.7%

Didn’t answer5.9%

0%35%70%

Residents who describe themselves as Christian make up 58%, against 43% across Wales’s towns. Census figures put residents with no religion at 33% in Llansteffan. Across Wales’s towns, the share of residents who describe themselves as White British is 90%.

Relationships & caring

More unpaid carers than 98% of UK towns: 12%

Legal partnership status (residents 16 and over) and unpaid care (residents 5 and over), Census 2021.

Partnership status · residents 16 and over

Never married or in a civil partnership21%

Married or civil partnership53%

Separated3.9%

Divorced12%

Widowed10%

LlansteffanDyfed’s townsWales’s towns

48residents give unpaid care to someone with an illness, disability or old age: 12%, against 10% in Wales’s towns

Unpaid care given · share of residents 5 and over

Up to 19 hours a week6.2%

20 to 49 hours3.3%

50 hours or more2.8%

21% of Llansteffan’s adults have never married or formed a civil partnership and 53% are married, against 38% and 43% across Wales’s towns. For comparison, 10% of residents give unpaid care across Wales’s towns. The number giving 50 or more hours of unpaid care a week is 11.

Qualifications

Qualified to degree level: 46% of adults

Highest qualification, residents 16 and over, Census 2021.

Highest qualification · residents 16 and over

No qualifications14%

Apprenticeship5.9%

A levels or similar12%

Degree level46%

LlansteffanDyfed’s townsWales’s towns

In Llansteffan, 46% of adults hold a degree-level qualification, against 31% across Wales’s towns, while 14% have no qualification at all (20%).

Neighbours

Llansteffan is older than every town around it

Nearby built-up areas coloured by median age, Census 2021. Tap a town for its page.

KidwellySt ClearsCarmarthenTrimsaranPontyatesCarwayPembreyLlansteffan

under 3838–4444–5050–5656+

Town	People	Away	Median age	65+	Homes with children
Llansteffan	408	—	57	35%	19%
Kidwelly	2,761	4.5 mi	49.1	27%	24%
St Clears	1,787	5.6 mi	43	23%	27%
Carmarthen	16,448	6.8 mi	40.3	21%	27%
Trimsaran	2,190	7.2 mi	44.2	23%	28%
Pontyates	1,475	7.3 mi	48.2	26%	23%
Carway	1,401	7.5 mi	34.6	13%	34%
Pembrey	2,094	7.6 mi	52.5	30%	22%

More about Llansteffan’s residents

Health, work and homes have their own pages

HealthLife expectancy, early deaths and Census health, adjusted for age Work & commuteIncome, the claimant count, jobs and how people get to work Cost of livingOwners and renters, prices, rents and council tax SchoolsEvery primary and secondary, with results and inspections

How to read these numbers

What this data can and can’t tell you

“Dyfed’s towns” and “Wales’s towns” mean their built-up areas. Census comparisons pool every built-up area in Dyfed (or Wales), summed the same way as Llansteffan’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 Llansteffan’s residents

What is the population of Llansteffan?

The 2021 Census counted 408 people in Llansteffan’s built-up area.

What is the average age in Llansteffan?

The median age was 57 at the 2021 Census. 4.9% of residents were 15 to 24 and 35% were 65 or over.

How diverse is Llansteffan?

98% of residents described themselves as White British in 2021, against 90% across Wales’s towns and 93% across Dyfed’s towns. 2.5% were born outside the UK.

What religion are people in Llansteffan?

33% said they had no religion and 58% that they were Christian at the 2021 Census; 0% were Muslim and 5.9% didn’t answer.

Is Llansteffan good for families?

19% of households had dependent children in 2021, against 27% across Wales’s towns. Schools are on Llansteffan’s schools page.

How many people speak Welsh in Llansteffan?

176 residents aged 3 and over, 44%, 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.