Photo: Eric Jones · CC BY-SA 2.0A Welsh-speaking village: 86% of Llanrug’s residents speak Welsh
1.7% of households live in a flat or apartment, against 14% across Wales’s towns. At the 2021 Census Llanrug was home to 1,537 people in 631 households. The census found that 11% of households have no car or van locally. With a median age of 41.2, Llanrug is younger than 74% of UK towns.
What the Census says about Llanrug’s people
A Welsh-speaking village
1,285 residents, 86% of those aged 3 and over, said they can speak Welsh in 2021, more than in 99% of Welsh towns. Welsh language ↓
A village of families
34% of Llanrug’s 631 households had dependent children in 2021, more than in 91% of UK towns. 20% of residents are under 15. Households ↓
Written from the data on this page: ONS Census 2021 (output areas summed to the 2022 built-up area).
Llanrug ranks above 77% of UK towns on residents aged 15 to 24: 11%
Share of residents in each five-year age band, Census 2021.
The largest age band is 10–14: 7.9% of residents, 1.3 times the share across Wales’s towns. The share of residents aged 65 and over stands at 22%. Elsewhere, 12% of residents are aged 15 to 24 across Wales’s towns.
Broad ages · share of residents
Women and men · all residents
53% women, 47% men
About 90 men for every 100 women. Across Wales, 51% of residents are women.
Residents who moved in within the year make up 5.1% in Llanrug, less 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%.
Llanrug sits close to the norm on full-time students: 7.6%, about the same as across Wales’s towns. Set beside that, nearly one in ten residents lived at another address a year earlier across Wales’s towns.
The Census was taken on 21 March 2021, in term time, so students were counted at their term addresses.
In Llanrug, 34% of households have dependent children, more than in 91% 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.
Across Wales’s towns, the share of shared households of unrelated adults is 3.1%; Llanrug has 1.9%. The average household has 2.4 people. One-person households are rarer here than in 64% of UK towns. Against that, 27% of households have dependent children across Wales’s towns.
Households in detached houses: 38%, a higher share than 72% 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
Where 29% of households live in a terraced house across Wales’s towns, Llanrug has 24%.
In Llanrug, 1.7% 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
Most residents from abroad were born in EU countries (0.8%) or in the Middle East and Asia (0.5%). Residents born outside the UK make up 7.4% across Wales’s towns. 96% of residents have English as their main language across Wales’s towns, against 100% in Llanrug.
86% of residents speak Welsh in Llanrug
Welsh language skills, residents aged 3 and over, Census 2021.
Welsh language skills · residents aged 3 and over
Against 16% across Welsh towns, 86% of residents aged 3 and over can speak Welsh here (1,285 people): more than in 99% of Welsh towns. Top of Gwynedd: Caernarfon, at 82%.
Above 99% of UK towns: 99% 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
White British, not charted: 99% of Llanrug · Gwynedd’s towns 93% · Wales’s towns 90%.
Religion · all residents
On religion, 40% answered “no religion” and 52% Christian, against 47% and 43% across Wales’s towns. The wider picture: 90% of residents describe themselves as White British across Wales’s towns. Residents who describe themselves as Christian are more common here than in two thirds of UK towns.
In Llanrug, 8.5% of residents give unpaid care, fewer than in 73% 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
Adults who have never married make up 38%, close to the figure across Wales’s towns. 46% of adults are married or in a civil partnership, a lower share than in 60% of UK towns. The share of unpaid carers across Wales’s towns is 10%.
Among adults, 36% hold a degree-level qualification
Highest qualification, residents 16 and over, Census 2021.
Highest qualification · residents 16 and over
Llanrug’s adults: 36% with a degree-level qualification and 16% with none, against 31% and 20% across Wales’s towns. A levels top the qualifications of 19%, many of them students on the way to a degree.
Nearby, 5 of 7 towns have older populations than Llanrug
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 |
|---|---|---|---|---|---|
| Llanrug | 1,537 | — | 41.2 | 22% | 34% |
| Bethel | 1,091 | 1.5 mi | 44.7 | 24% | 32% |
| Clwt-y-bont | 1,385 | 2.5 mi | 39 | 17% | 31% |
| Y Felinheli | 2,333 | 2.6 mi | 42.9 | 21% | 25% |
| Llanberis | 1,838 | 3.2 mi | 44.5 | 20% | 25% |
| Caernarfon | 9,831 | 3.2 mi | 39.6 | 19% | 28% |
| Tregarth | 1,252 | 5.1 mi | 43.8 | 20% | 30% |
| Llanfair Pwllgwyngyll | 2,905 | 5.4 mi | 52 | 33% | 22% |
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 Llanrug’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 Llanrug’s residents
What is the population of Llanrug?
The 2021 Census counted 1,537 people in Llanrug’s built-up area.
What is the average age in Llanrug?
The median age was 41.2 at the 2021 Census. 11% of residents were 15 to 24 and 22% were 65 or over.
How diverse is Llanrug?
99% of residents described themselves as White British in 2021, against 90% across Wales’s towns and 93% across Gwynedd’s towns. 1.7% were born outside the UK.
What religion are people in Llanrug?
40% said they had no religion and 52% that they were Christian at the 2021 Census; 0.3% were Muslim and 7.1% didn’t answer.
Is Llanrug good for families?
34% of households had dependent children in 2021, against 27% across Wales’s towns. Schools are on Llanrug’s schools page.
How many people speak Welsh in Llanrug?
1,285 residents aged 3 and over, 86%, 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.