Photo: Eric Jones · CC BY-SA 2.0Fewer flats than 97% of UK towns: 1.8% of households
The median age in Llanfechell is 50.7, higher than in 88% of UK towns. The share of residents who describe themselves as White British stands at 99%. Census day 2021: 614 residents and 281 households in the village. Households in detached houses: 49%, above 89% of UK towns.
24% of Llanfechell is 65 or over, a higher share than 66% of UK towns
Share of residents in each five-year age band, Census 2021.
More residents are 50–54 than any other five-year age: 10% of residents, 1.5 times the share across Wales’s towns. For Llanfechell, the census puts residents aged 15 to 24 at 9.8%. By way of 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 96 men for every 100 women. Across Wales, 51% of residents are women.
14% of residents lived at another address a year earlier, more than in 96% 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%.
Where 8% of adults are full-time students across Wales’s towns, Llanfechell has 4.5%. Set beside that, nearly one in ten residents lived at another address a year earlier across Wales’s towns.
Only 23% of households have dependent children in Llanfechell
Household make-up at the 2021 Census. Each square is 1% of households.
Against Gwynedd’s towns and Wales’s towns
People per household
Wales’s towns.
There is little gap on shared households of unrelated adults: 2.9%, about the same as across Wales’s towns. Measured more widely, 27% of households have dependent children across Wales’s towns. On average, 2.2 people share a household. More one-person households than in 69% of UK towns: 32%.
Fewer households without a car or van than 89% of UK towns: 8.6%
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
On the census count, a fifth of households live in a terraced house. Across Wales’s towns, households without a car or van come to 21%.
1.8% born outside the UK, fewer than in 99% 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
By birthplace, the largest groups from abroad were born in EU countries (1.1%) and in the rest of Europe (0.3%). On residents whose main language is English, Llanfechell sits higher than 96% of UK towns: 99%. Across Wales’s towns, residents born outside the UK come to 7.4%.
Welsh is spoken by 64% of Llanfechell’s residents
Welsh language skills, residents aged 3 and over, Census 2021.
Welsh language skills · residents aged 3 and over
Asked in 2021, 380 residents aged 3 and over, 64%, said they can speak Welsh; across Welsh towns, 16%: more than in 96% of Welsh towns. Within Gwynedd, Caernarfon has the largest share, 82%.
56% describe themselves as Christian, more than in 84% 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: 99% of Llanfechell · Gwynedd’s towns 93% · Wales’s towns 90%.
Religion · all residents
39% of residents said they have no religion, against 47% across Wales’s towns. Against that, 43% of residents describe themselves as Christian across Wales’s towns.
A higher share of unpaid carers than 95% of UK towns, at 12%
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
28 people care, unpaid, for 50 hours or more a week. Adults who have never married are rarer here than in 51% of UK towns. On average, one in ten residents give unpaid care across Wales’s towns. Married adults and civil partners: 48% here and 43% across Wales’s towns.
Degree-level qualifications: held by 29% of adults
Highest qualification, residents 16 and over, Census 2021.
Highest qualification · residents 16 and over
In Llanfechell, 29% of adults hold a degree-level qualification, against 31% across Wales’s towns, while 23% have no qualification at all (20%).
3 in 7 nearby towns have a higher median age than Llanfechell
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
- “Gwynedd’s towns” and “Wales’s towns” mean their built-up areas. Census comparisons pool every built-up area in Gwynedd (or Wales), summed the same way as Llanfechell’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 Llanfechell’s residents
What is the population of Llanfechell?
The 2021 Census counted 614 people in Llanfechell’s built-up area.
What is the average age in Llanfechell?
The median age was 50.7 at the 2021 Census. 9.8% of residents were 15 to 24 and 24% were 65 or over.
How diverse is Llanfechell?
99% of residents described themselves as White British in 2021, against 90% across Wales’s towns and 93% across Gwynedd’s towns. 1.8% were born outside the UK.
What religion are people in Llanfechell?
39% said they had no religion and 56% that they were Christian at the 2021 Census; 0.7% were Muslim and 3.9% didn’t answer.
Is Llanfechell good for families?
23% of households had dependent children in 2021, against 27% across Wales’s towns. Schools are on Llanfechell’s schools page.
How many people speak Welsh in Llanfechell?
380 residents aged 3 and over, 64%, 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.