0.5% of households live in a flat or apartment, fewer than in 99% of UK towns
7.9% of households live in a terraced house; across Wales’s towns the figure is 29%. In Pentre Berw, 97% of residents describe themselves as White British. Compared with other places, married adults and civil partners are common here: 55%, more than in 87% of UK towns. The 2021 Census counted 433 residents in 188 households.
In Pentre Berw, 7.4% of residents are aged 15 to 24, fewer than in 97% of UK towns
Share of residents in each five-year age band, Census 2021.
The median age in Pentre Berw is 50.1, higher than in 85% of UK towns. In Pentre Berw, nearly a quarter of residents are 65 or over. As a yardstick, 12% of residents are aged 15 to 24 across Wales’s towns. The biggest five-year age group is 50–54, with 9.3% of residents, 1.4 times the share across Wales’s towns.
Broad ages · share of residents
Women and men · all residents
52% women, 48% men
About 93 men for every 100 women. Across Wales, 51% of residents are women.
In Pentre Berw, 5.5% of residents lived at another address a year earlier, fewer 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%.
Managerial and professional jobs account for 38% of Pentre Berw’s adults, routine and semi-routine work for 15%, against 29% and 27% across Wales’s towns. By way of comparison, 9.1% of residents lived at another address a year earlier across Wales’s towns. Census figures put full-time students at 5% here.
The Census was taken on 21 March 2021, in term time, so students were counted at their term addresses.
Households with dependent children: 24%, a lower share than 77% 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.
Households in Pentre Berw hold 2.3 people on average (Wales’s towns: 2.3). 3.2% of households are unrelated adults sharing a home, a higher share than in 81% of UK towns. Across the comparison, 27% of households have dependent children across Wales’s towns. One-person households: 30% of the total.
Pentre Berw sits below 99% of UK towns for households without a car or van (4.7%)
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 figure for households in detached houses is 68% in Pentre Berw and 24% across Wales’s towns. Typically, 21% of households have no car or van across Wales’s towns.
Pentre Berw sits above 99% of UK towns for residents whose main language is English (100%)
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 born abroad were most often born in EU countries (1.6%), then in the Americas, Oceania and elsewhere (0.9%). Pentre Berw has fewer residents born outside the UK than 88% of UK towns, at 3.2%. Against that, 96% of residents have English as their main language across Wales’s towns.
Pentre Berw’s residents: 70% speak Welsh
Welsh language skills, residents aged 3 and over, Census 2021.
Welsh language skills · residents aged 3 and over
Welsh speakers number 297, or 70% of residents aged 3 and over, against 16% across Welsh towns: more than in 96% of them. In Gwynedd, Caernarfon has the highest share (82%).
Residents who describe themselves as Christian make up 60% in Pentre Berw, more than in 94% 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: 97% of Pentre Berw · Gwynedd’s towns 93% · Wales’s towns 90%.
Religion · all residents
In Pentre Berw, a third of residents said they have no religion, beside 47% across Wales’s towns. As a yardstick, 43% of residents describe themselves as Christian across Wales’s towns.
Adults who have never married: 25%, a lower share than 91% 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
Unpaid carers giving 50 hours or more a week: 17. Higher than in 95% of UK towns: 12% of residents give unpaid care. The share of adults who have never married across Wales’s towns is 38%.
Adults qualified to degree level or above: 42%
Highest qualification, residents 16 and over, Census 2021.
Highest qualification · residents 16 and over
At degree level, Pentre Berw counts 42% of its adults, against 31% across Wales’s towns; at the other end, 9.8% have no qualification (20%).
Around Pentre Berw, 1 of 7 towns have a higher median age
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 |
|---|---|---|---|---|---|
| Pentre Berw | 433 | — | 50.1 | 23% | 24% |
| Gaerwen | 1,277 | 0.8 mi | 39.8 | 19% | 30% |
| Llangefni | 5,264 | 2.2 mi | 39.5 | 20% | 31% |
| Llanfair Pwllgwyngyll | 2,905 | 3.8 mi | 52 | 33% | 22% |
| Y Felinheli | 2,333 | 4.6 mi | 42.9 | 21% | 25% |
| Menai Bridge | 3,045 | 5.2 mi | 47.3 | 24% | 20% |
| Bethel | 1,091 | 5.5 mi | 44.7 | 24% | 32% |
| Caernarfon | 9,831 | 6.1 mi | 39.6 | 19% | 28% |
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 Pentre Berw’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 Pentre Berw’s residents
What is the population of Pentre Berw?
The 2021 Census counted 433 people in Pentre Berw’s built-up area.
What is the average age in Pentre Berw?
The median age was 50.1 at the 2021 Census. 7.4% of residents were 15 to 24 and 23% were 65 or over.
How diverse is Pentre Berw?
97% of residents described themselves as White British in 2021, against 90% across Wales’s towns and 93% across Gwynedd’s towns. 3.2% were born outside the UK.
What religion are people in Pentre Berw?
33% said they had no religion and 60% that they were Christian at the 2021 Census; 0% were Muslim and 6.2% didn’t answer.
Is Pentre Berw good for families?
24% of households had dependent children in 2021, against 27% across Wales’s towns. Schools are on Pentre Berw’s schools page.
How many people speak Welsh in Pentre Berw?
297 residents aged 3 and over, 70%, 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.