Photo: Stephen Elwyn RODDICK · CC BY-SA 2.0A median age of 55.9: Llanddona is older than 97% of UK towns
By its share of households in flats (3.2%), Llanddona is below 92% of UK towns. The village counted 642 residents and 283 households at the 2021 Census. 19% of households have dependent children. Few places have as many households in detached houses: 69% here, more than in 99% of UK towns.
31% of residents are 65 or over, more than in 92% of UK towns
Share of residents in each five-year age band, Census 2021.
The share of residents aged 15 to 24 trails 94% of UK towns: 7.8%. 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 95 men for every 100 women. Across Wales, 51% of residents are women.
4.7% of residents lived at another address a year earlier, below 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%.
5% of adults are full-time students, against 8% across Wales’s towns. Across Wales’s towns, residents who moved in within the year come to 9.1%.
Below 82% of UK towns: 1.8% of households are unrelated adults sharing a home
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.
In Llanddona the average household is 2.3 people, beside 2.3 across Wales’s towns. Across Wales’s towns, shared households of unrelated adults come to 3.1%. Census figures put one-person households at 30% in the village.
7.5% of households have no car or van, fewer than in 94% of UK towns
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
The share of households in terraced houses is 11%, against 29% across Wales’s towns. What’s more, every 13th household or so has no car or van.
In Llanddona, 1.6% of residents were 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
The largest groups were born in EU countries (1.1%) and in the Americas, Oceania and elsewhere (0.5%). Against that, 7.4% of residents were born outside the UK across Wales’s towns. Across Wales’s towns, the share of residents whose main language is English is 96%; Llanddona has 100%.
Llanddona’s residents: 52% speak Welsh
Welsh language skills, residents aged 3 and over, Census 2021.
Welsh language skills · residents aged 3 and over
330 residents, 52% of those aged 3 and over, said they can speak Welsh at the 2021 Census, against 16% across Welsh towns: more than in 93% of Welsh towns. In Gwynedd, Caernarfon has the highest share (82%).
In Llanddona, 35% of residents said they have no religion, fewer than in 83% 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: 95% of Llanddona · Gwynedd’s towns 93% · Wales’s towns 90%.
Religion · all residents
The share of residents who describe themselves as White British is 95%, against 90% across Wales’s towns. Compared with other places, residents who describe themselves as Christian are common here: 56%, more than in 83% of UK towns. Typically, 47% of residents said they have no religion across Wales’s towns.
Adults who have never married: 28%, a lower share than 82% 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
53% of adults are married or in a civil partnership (Wales’s towns: 43%). On the census count, just over one in ten residents give unpaid care. Adults who have never married: 38% across Wales’s towns, for comparison.
47% of adults have a degree-level qualification
Highest qualification, residents 16 and over, Census 2021.
Highest qualification · residents 16 and over
Llanddona’s adults: 47% with a degree-level qualification and 11% with none, against 31% and 20% across Wales’s towns.
Median age: 2 of the 7 towns around Llanddona are older
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 |
|---|---|---|---|---|---|
| Llanddona | 642 | — | 55.9 | 31% | 19% |
| Beaumaris | 1,120 | 2.8 mi | 58.1 | 39% | 17% |
| Benllech | 2,072 | 4.1 mi | 62 | 45% | 13% |
| Menai Bridge | 3,045 | 4.7 mi | 47.3 | 24% | 20% |
| Bangor | 16,994 | 5.1 mi | 26.4 | 12% | 26% |
| Llanfair Pwllgwyngyll | 2,905 | 5.5 mi | 52 | 33% | 22% |
| Llanfairfechan | 3,547 | 7.4 mi | 49.2 | 24% | 24% |
| Llangefni | 5,264 | 7.5 mi | 39.5 | 20% | 31% |
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 Llanddona’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 Llanddona’s residents
What is the population of Llanddona?
The 2021 Census counted 642 people in Llanddona’s built-up area.
What is the average age in Llanddona?
The median age was 55.9 at the 2021 Census. 7.8% of residents were 15 to 24 and 31% were 65 or over.
How diverse is Llanddona?
95% of residents described themselves as White British in 2021, against 90% across Wales’s towns and 93% across Gwynedd’s towns. 1.6% were born outside the UK.
What religion are people in Llanddona?
35% said they had no religion and 56% that they were Christian at the 2021 Census; 0.3% were Muslim and 8.1% didn’t answer.
Is Llanddona good for families?
19% of households had dependent children in 2021, against 27% across Wales’s towns. Schools are on Llanddona’s schools page.
How many people speak Welsh in Llanddona?
330 residents aged 3 and over, 52%, 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.