Plas Rhianfa · Photo: Reading Tom from Reading, UK · CC BY 2.0A village of detached houses: 64% of households live in one
Here 56% of adults are married or in a civil partnership, where the figure across Wales’s towns is 43%. Across Llandegfan, 7.4% of households have no car or van. Lower than in three quarters of UK towns: 27% of households are one person living alone. There were 413 households in the village at the 2021 Census, home to 999 residents.
Residents aged 65 and over make up 25% in Llandegfan, more than in 70% of UK towns
Share of residents in each five-year age band, Census 2021.
With a median age of 46.6, Llandegfan is older than 66% of UK towns. To put it in context, 21% of residents are 65 or over across Wales’s towns. Residents aged 15 to 24 account for 9.8%. The largest age band is 60–64: 7.9% of residents, 1.3 times the share across Wales’s towns.
Broad ages · share of residents
Women and men · all residents
52% women, 48% men
About 94 men for every 100 women. Across Wales, 51% of residents are women.
Llandegfan ranks below 84% of UK towns on residents who moved in within the year: 7%
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%.
Managerial and professional jobs take in 42% of adults here, routine and semi-routine work 17% (Wales’s towns: 29% and 27%). The share of residents who moved in within the year across Wales’s towns is 9.1%. On the census count, 7.9% of adults are full-time students.
The Census was taken on 21 March 2021, in term time, so students were counted at their term addresses.
Households with dependent children make up 31% in Llandegfan, more than in 79% 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.
A household here has 2.4 people on average; across Wales’s towns, 2.3. 1.5% of households are unrelated adults sharing a home, a lower share than in 93% of UK towns. As a yardstick, 27% of households have dependent children across Wales’s towns.
A smaller share of households in terraced houses than 75% of UK towns: 14%
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
Here 7.3% of households live in a flat or apartment, where the figure across Wales’s towns is 14%. For households in terraced houses, the comparison across Wales’s towns is 29%.
99% of residents have English as their main language, a share 97% of UK towns don’t reach
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
Among residents born abroad, the largest groups were born in EU countries (1.6%) and in the Americas, Oceania and elsewhere (1.3%). Across Wales’s towns, the share of residents whose main language is English is 96%. The share of residents born outside the UK is 5.5%, against 7.4% across Wales’s towns.
In Llandegfan, 61% of residents can speak Welsh
Welsh language skills, residents aged 3 and over, Census 2021.
Welsh language skills · residents aged 3 and over
61% of residents aged 3 and over, 584 people, said in 2021 that they can speak Welsh, more than in 95% of Welsh towns (Welsh towns: 16%). The highest share in Gwynedd belongs to Caernarfon (82%).
95% of residents describe themselves as White British, a share 79% 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: 95% of Llandegfan · Gwynedd’s towns 93% · Wales’s towns 90%.
Religion · all residents
47% of residents said they have no religion across Wales’s towns, against 39% in Llandegfan. Residents who describe themselves as Christian account for 53%. Measured more widely, 90% of residents describe themselves as White British across Wales’s towns.
Only 29% of adults have never married or formed a civil partnership in Llandegfan
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
Heavy unpaid care, 50 hours a week or more, falls to 30 residents. Adults who have never married make up 38% across Wales’s towns. Nearly one in ten residents give unpaid care, fewer than in 61% of UK towns.
46% of adults have a degree-level qualification
Highest qualification, residents 16 and over, Census 2021.
Highest qualification · residents 16 and over
In Llandegfan, 46% of adults hold a degree-level qualification, against 31% across Wales’s towns, while 11% have no qualification at all (20%). A levels are the highest qualification of 19%, many of them students still working towards a degree.
Llandegfan 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 |
|---|---|---|---|---|---|
| Llandegfan | 999 | — | 46.6 | 25% | 31% |
| Menai Bridge | 3,045 | 1.4 mi | 47.3 | 24% | 20% |
| Bangor | 16,994 | 1.7 mi | 26.4 | 12% | 26% |
| Beaumaris | 1,120 | 2.4 mi | 58.1 | 39% | 17% |
| Llanfair Pwllgwyngyll | 2,905 | 2.6 mi | 52 | 33% | 22% |
| Tregarth | 1,252 | 4.5 mi | 43.8 | 20% | 30% |
| Y Felinheli | 2,333 | 5 mi | 42.9 | 21% | 25% |
| Gaerwen | 1,277 | 5.5 mi | 39.8 | 19% | 30% |
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.
- “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 Llandegfan’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 Llandegfan’s residents
What is the population of Llandegfan?
The 2021 Census counted 999 people in Llandegfan’s built-up area.
What is the average age in Llandegfan?
The median age was 46.6 at the 2021 Census. 9.8% of residents were 15 to 24 and 25% were 65 or over.
How diverse is Llandegfan?
95% of residents described themselves as White British in 2021, against 90% across Wales’s towns and 93% across Gwynedd’s towns. 5.5% were born outside the UK.
What religion are people in Llandegfan?
39% said they had no religion and 53% that they were Christian at the 2021 Census; 0.5% were Muslim and 6.9% didn’t answer.
Is Llandegfan good for families?
31% of households had dependent children in 2021, against 27% across Wales’s towns. Schools are on Llandegfan’s schools page.
How many people speak Welsh in Llandegfan?
584 residents aged 3 and over, 61%, 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.