Photo: Bill Payer · CC BY-SA 2.098% of residents describe themselves as White British, more than in 99% of UK towns
4% of households live in a flat or apartment (Wales’s towns: 14%). Still, with a median age of 50.4, Bontnewydd is older than 87% of UK towns. Census day 2021: 821 residents and 377 households in the village. In Bontnewydd, 22% of households have dependent children.
Residents aged 65 and over: 27%, a higher share than 80% of UK towns
Share of residents in each five-year age band, Census 2021.
Across Wales’s towns, the share of residents aged 15 to 24 is 12%; Bontnewydd has 10%. As a reference point, 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 92 men for every 100 women. Across Wales, 51% of residents are women. Women live longer than men, so towns with many older residents have more women.
A lower share of residents who moved in within the year than 99% of UK towns, at 5.4%
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%.
Set against 8% across Wales’s towns, 5.4% of adults are full-time students in Bontnewydd. Against 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.
Bontnewydd households average 2.2 people, smaller than in 80% 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.
One-person households make up 34%, against 32% across Wales’s towns. The census found that 2.4% of households are unrelated adults sharing a home in Bontnewydd.
A higher share of households in terraced houses than 87% of UK towns, at 33%
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
17% of households have no car or van, against 21% across Wales’s towns. Elsewhere, 29% of households live in a terraced house across Wales’s towns.
Fewer residents born abroad than 99% of UK towns: 1.5%
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
100% of residents have English as their main language (Wales’s towns: 96%). The comparison figure for residents born outside the UK is 7.4% across Wales’s towns. Among residents born abroad, the largest groups were born in EU countries (0.5%) and in Africa (0.4%).
84% of people in Bontnewydd speak Welsh
Welsh language skills, residents aged 3 and over, Census 2021.
Welsh language skills · residents aged 3 and over
Across Welsh towns, 16% of residents can speak Welsh; here 682 people, 84% of those aged 3 and over, said they can: more than in 99% of Welsh towns. Top of Gwynedd: Caernarfon, at 82%.
56% of residents describe themselves as Christian, a share 84% 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 Bontnewydd · Gwynedd’s towns 93% · Wales’s towns 90%.
Religion · all residents
The share of residents with no religion is 38%, against 47% across Wales’s towns. Across the comparison, 43% of residents describe themselves as Christian across Wales’s towns.
Bontnewydd ranks above 63% of UK towns on married adults and civil partners: 50%
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
The share of adults who have never married is 31%, against 38% across Wales’s towns. As a reference point, 43% of adults are married or in a civil partnership across Wales’s towns. Here, nearly one in ten residents give unpaid care.
Adults qualified to degree level or above: 33%
Highest qualification, residents 16 and over, Census 2021.
Highest qualification · residents 16 and over
Across Wales’s towns, 31% of adults have a degree-level qualification; in Bontnewydd, 33%, and 16% have none, against 20%.
Bontnewydd is older than every town around it
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 |
|---|---|---|---|---|---|
| Bontnewydd | 821 | — | 50.4 | 27% | 22% |
| Caernarfon | 9,831 | 1.6 mi | 39.6 | 19% | 28% |
| Llanrug | 1,537 | 3.9 mi | 41.2 | 22% | 34% |
| Bethel | 1,091 | 4.3 mi | 44.7 | 24% | 32% |
| Penygroes | 1,793 | 4.4 mi | 45.2 | 24% | 24% |
| Y Felinheli | 2,333 | 5.2 mi | 42.9 | 21% | 25% |
| Llanberis | 1,838 | 5.8 mi | 44.5 | 20% | 25% |
| Clwt-y-bont | 1,385 | 6.1 mi | 39 | 17% | 31% |
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 Bontnewydd’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 Bontnewydd’s residents
What is the population of Bontnewydd?
The 2021 Census counted 821 people in Bontnewydd’s built-up area.
What is the average age in Bontnewydd?
The median age was 50.4 at the 2021 Census. 10% of residents were 15 to 24 and 27% were 65 or over.
How diverse is Bontnewydd?
98% of residents described themselves as White British in 2021, against 90% across Wales’s towns and 93% across Gwynedd’s towns. 1.5% were born outside the UK.
What religion are people in Bontnewydd?
38% said they had no religion and 56% that they were Christian at the 2021 Census; 0.4% were Muslim and 5.4% didn’t answer.
Is Bontnewydd good for families?
22% of households had dependent children in 2021, against 27% across Wales’s towns. Schools are on Bontnewydd’s schools page.
How many people speak Welsh in Bontnewydd?
682 residents aged 3 and over, 84%, 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.