Photo: Nigel Williams · CC BY-SA 2.0A Welsh-speaking village: 72% of Tregarth’s residents speak Welsh
Here 96% of residents describe themselves as White British, where the figure across Wales’s towns is 90%. Compared with other places, households in flats are scarce here: 1%, fewer than in 99% of UK towns. Tregarth counted 1,252 residents and 525 households at the 2021 Census. Census figures put households with dependent children at 30% in the village.
What the Census says about Tregarth’s people
A Welsh-speaking village
877 residents, 72% of those aged 3 and over, said they can speak Welsh in 2021, more than in 97% of Welsh towns. Welsh language ↓
Written from the data on this page: ONS Census 2021 (output areas summed to the 2022 built-up area).
Tregarth sits above 73% of UK towns for residents aged 15 to 24 (11%)
Share of residents in each five-year age band, Census 2021.
The median age in Tregarth is 43.8, lower than in 55% of UK towns. Elsewhere, 12% of residents are aged 15 to 24 across Wales’s towns. Across Tregarth, 20% of residents are 65 or over. In Tywyn, the oldest of Gwynedd’s towns by this measure, it is 36%.
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.
7.8% of adults are full-time students, more than in 93% 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%.
Across Wales’s towns, 29% of adults are in managerial and professional jobs and 27% in routine or semi-routine work; Tregarth has 37% and 21%. The benchmark for full-time students across Wales’s towns: 8%. Census figures put residents who moved in within the year at 7.6% in the village.
The Census was taken on 21 March 2021, in term time, so students were counted at their term addresses.
Tregarth households average 2.4 people, larger than in 75% 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.
28% of households are one person living alone (Wales’s towns: 32%). Shared households of unrelated adults: 2.5% of the total.
Households in terraced houses: 31%, a higher share than 85% 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
Just over one in ten households have no car or van; across Wales’s towns the figure is 21%. To put it in context, 29% of households live in a terraced house across Wales’s towns. Across Tregarth, 37% of households live in a detached house.
A lower share of residents born outside the UK than 96% of UK towns, at 2.5%
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
Residents whose main language is English: 99%, above 90% of UK towns. As a reference point, 7.4% of residents were born outside the UK across Wales’s towns. Among residents born abroad, the largest groups were born in EU countries (1.8%) and in the Middle East and Asia (0.2%).
Welsh is spoken by 72% of Tregarth’s residents
Welsh language skills, residents aged 3 and over, Census 2021.
Welsh language skills · residents aged 3 and over
Against 16% across Welsh towns, 72% of residents aged 3 and over can speak Welsh here (877 people): more than in 97% of Welsh towns. Caernarfon leads Gwynedd with 82%.
Tregarth ranks below 70% of UK towns on residents who describe themselves as Christian: 47%
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: 96% of Tregarth · Gwynedd’s towns 93% · Wales’s towns 90%.
Religion · all residents
Behind White British, the largest groups are Other White (2.3%), Mixed or multiple (0.4%) and Indian (0.3%). At 45%, the share of residents with no religion is higher than in 75% of UK towns. The share of residents who describe themselves as Christian across Wales’s towns is 43%.
11% of residents give unpaid care, a share 91% of UK towns don’t reach
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
37% of adults have never married or formed a civil partnership, against 38% across Wales’s towns. For comparison, one in ten residents give unpaid care across Wales’s towns. Locally, 47% of adults are married or in a civil partnership.
43% of adults have a degree-level qualification
Highest qualification, residents 16 and over, Census 2021.
Highest qualification · residents 16 and over
Degree-level qualifications are held by 43% of adults in Tregarth (Wales’s towns: 31%), and no qualification by 12% (Wales’s towns: 20%). Many of the 17% whose highest qualification is A levels are students working towards a degree.
Older than Tregarth: 2 of the 7 towns nearby
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 |
|---|---|---|---|---|---|
| Tregarth | 1,252 | — | 43.8 | 20% | 30% |
| Bethesda | 3,757 | 1.5 mi | 39.8 | 17% | 29% |
| Bangor | 16,994 | 2.9 mi | 26.4 | 12% | 26% |
| Clwt-y-bont | 1,385 | 3.4 mi | 39 | 17% | 31% |
| Menai Bridge | 3,045 | 4.2 mi | 47.3 | 24% | 20% |
| Y Felinheli | 2,333 | 5 mi | 42.9 | 21% | 25% |
| Llanrug | 1,537 | 5.1 mi | 41.2 | 22% | 34% |
| Bethel | 1,091 | 5.1 mi | 44.7 | 24% | 32% |
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 Tregarth’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 Tregarth’s residents
What is the population of Tregarth?
The 2021 Census counted 1,252 people in Tregarth’s built-up area.
What is the average age in Tregarth?
The median age was 43.8 at the 2021 Census. 11% of residents were 15 to 24 and 20% were 65 or over.
How diverse is Tregarth?
96% of residents described themselves as White British in 2021, against 90% across Wales’s towns and 93% across Gwynedd’s towns. 2.5% were born outside the UK.
What religion are people in Tregarth?
45% said they had no religion and 47% that they were Christian at the 2021 Census; 0.2% were Muslim and 7.6% didn’t answer.
Is Tregarth good for families?
30% of households had dependent children in 2021, against 27% across Wales’s towns. Schools are on Tregarth’s schools page.
How many people speak Welsh in Tregarth?
877 residents aged 3 and over, 72%, 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.