Photo: DS Pugh · CC BY-SA 2.0In Llan Ffestiniog, 98% of residents describe themselves as White British, more than in 99% of UK towns
The figure for households in terraced houses is 45% in Llan Ffestiniog and 29% across Wales’s towns. Locally, 3.3% of households live in a flat or apartment. With a median age of 50.3, Llan Ffestiniog is older than 86% of UK towns. At the 2021 Census, 903 people lived in the village, in 389 households.
A larger share of residents aged 65 and over than 72% of UK towns: 25%
Share of residents in each five-year age band, Census 2021.
With residents aged 15 to 24 at 9.1%, Llan Ffestiniog is behind 71% of UK towns on that count. The usual figure: 21% of residents are 65 or over across Wales’s towns.
Broad ages · share of residents
Women and men · all residents
52% women, 48% men
About 93 men for every 100 women. Across Wales, 51% of residents are women.
In Llan Ffestiniog, 5.2% 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%.
4.7% of adults are full-time students, against 8% across Wales’s towns. The comparison figure for residents who moved in within the year is 9.1% across Wales’s towns.
24% of households have dependent children, below 77% of UK towns
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.
Households average 2.2 people, against 2.3 across Wales’s towns. Across Wales’s towns, the share of households with dependent children is 27%. The census found that a third of households are one person living alone in Llan Ffestiniog. Shared households of unrelated adults are rarer here than in just over half of UK towns.
Below 85% of UK towns: 9.5% of households 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
Cars or vans · share of households
Households in detached houses make up 32%, against 24% across Wales’s towns. Across the comparison, 21% of households have no car or van across Wales’s towns.
Fewer residents born abroad than 90% of UK towns: 3.1%
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
The two biggest birthplaces abroad are in EU countries (1.2%) and in the Middle East and Asia (1%). By way of comparison, 7.4% of residents were born outside the UK across Wales’s towns. 99% of residents have English as their main language, more than in 90% of UK towns.
Welsh speakers: 73% of Llan Ffestiniog’s residents
Welsh language skills, residents aged 3 and over, Census 2021.
Welsh language skills · residents aged 3 and over
Asked in 2021, 644 residents aged 3 and over, 73%, said they can speak Welsh; across Welsh towns, 16%: more than in 97% of Welsh towns. Within Gwynedd, Caernarfon has the largest share, 82%.
49% of residents said they have no religion, a share 90% 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: 98% of Llan Ffestiniog · Gwynedd’s towns 93% · Wales’s towns 90%.
Religion · all residents
Nothing unusual on residents who describe themselves as Christian: 43%, close to the figure across Wales’s towns. Measured more widely, 47% of residents said they have no religion across Wales’s towns.
Adults who have never married make up 36% in Llan Ffestiniog, more than in 71% 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
Unpaid carers giving 50 hours or more a week: 36. Adults who have never married make up 38% across Wales’s towns. Married adults and civil partners are rarer here than in 83% of UK towns. At 9.6%, unpaid carers sit close to the figure across Wales’s towns.
Among adults, 33% hold a degree-level qualification
Highest qualification, residents 16 and over, Census 2021.
Highest qualification · residents 16 and over
18% of Llan Ffestiniog’s adults have no qualification (20% across Wales’s towns), and 33% have one at degree level (31%).
A younger town than 1 of the 4 around it: Llan Ffestiniog
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 |
|---|---|---|---|---|---|
| Llan Ffestiniog | 903 | — | 50.3 | 25% | 24% |
| Blaenau Ffestiniog | 3,449 | 2.3 mi | 43.4 | 20% | 26% |
| Penrhyndeudraeth | 1,463 | 5.9 mi | 45.6 | 23% | 25% |
| Porthmadog | 2,579 | 8.6 mi | 48.3 | 28% | 22% |
| Harlech | 1,261 | 9.8 mi | 56 | 34% | 15% |
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 Llan Ffestiniog’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 Llan Ffestiniog’s residents
What is the population of Llan Ffestiniog?
The 2021 Census counted 903 people in Llan Ffestiniog’s built-up area.
What is the average age in Llan Ffestiniog?
The median age was 50.3 at the 2021 Census. 9.1% of residents were 15 to 24 and 25% were 65 or over.
How diverse is Llan Ffestiniog?
98% of residents described themselves as White British in 2021, against 90% across Wales’s towns and 93% across Gwynedd’s towns. 3.1% were born outside the UK.
What religion are people in Llan Ffestiniog?
49% said they had no religion and 43% that they were Christian at the 2021 Census; 0% were Muslim and 7.4% didn’t answer.
Is Llan Ffestiniog good for families?
24% of households had dependent children in 2021, against 27% across Wales’s towns. Schools are on Llan Ffestiniog’s schools page.
How many people speak Welsh in Llan Ffestiniog?
644 residents aged 3 and over, 73%, 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.