Church of St Sannan · Photo: Llywelyn2000 · CC BY-SA 4.0Below 99% of UK towns: 5% of households have no car or van
The share of households in flats trails 97% of UK towns: 2.1%. Locally, 61% of residents describe themselves as Christian. On households with dependent children, Llansannan sits lower than 78% of UK towns: 24%. There were 141 households here at the 2021 Census, home to 308 residents.
Below 87% of UK towns: 8.4% of residents are aged 15 to 24
Share of residents in each five-year age band, Census 2021.
The median age in Llansannan is 46.2, higher than in 63% of UK towns. The usual figure: 12% of residents are aged 15 to 24 across Wales’s towns. The largest age band is 50–54: nearly one in ten residents. In Penrhyn Bay, the oldest of Clwyd’s towns by this measure, it is 34%.
Broad ages · share of residents
Women and men · all residents
49% women, 51% men
About an even split. Across Wales, 51% of residents are women.
Below 99% of UK towns: 4.2% of residents lived at another address a year earlier
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 29% of Llansannan’s adults, routine and semi-routine work for 22%, against 29% and 27% across Wales’s towns. On average, 9.1% of residents lived at another address a year earlier across Wales’s towns. Here, 6.1% of adults are full-time students.
The Census was taken on 21 March 2021, in term time, so students were counted at their term addresses.
A higher share of one-person households than 94% of UK towns, at 37%
Household make-up at the 2021 Census. Each square is 1% of households.
Against Clwyd’s towns and Wales’s towns
People per household
Wales’s towns.
The figure for shared households of unrelated adults is 0.7% in Llansannan and 3.1% across Wales’s towns. The comparison figure for one-person households is 32% across Wales’s towns. Households average 2.2 people.
Llansannan sits below 92% of UK towns for households in terraced houses (8.6%)
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
47% of households live in a detached house; across Wales’s towns the figure is 24%. Typically, 29% of households live in a terraced house across Wales’s towns.
More residents whose main language is English than 77% of UK towns: 99%
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 (2.6%) and in the Americas, Oceania and elsewhere (2.6%). Few places have so few residents born outside the UK: 5.5% here, fewer than in 59% of UK towns. Against that, 96% of residents have English as their main language across Wales’s towns.
71% of residents speak Welsh in Llansannan
Welsh language skills, residents aged 3 and over, Census 2021.
Welsh language skills · residents aged 3 and over
The 2021 Census found 215 Welsh speakers aged 3 and over, 71% of that age group, against 16% across Welsh towns: more than in 97% of them. Llanfairfechan leads Clwyd with 44%.
A lower share of residents with no religion than 86% of UK towns, at 33%
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: 94% of Llansannan · Clwyd’s towns 92% · Wales’s towns 90%.
Religion · all residents
Set against 90% across Wales’s towns, 94% of residents describe themselves as White British in Llansannan. The share of residents with no religion across Wales’s towns is 47%.
Only 7.5% of residents give unpaid care in Llansannan
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
38% of adults have never married or formed a civil partnership across Wales’s towns, against 32% in Llansannan. Across Llansannan, 49% of adults are married or in a civil partnership. The usual figure: one in ten residents give unpaid care across Wales’s towns.
30% of adults are qualified to degree level
Highest qualification, residents 16 and over, Census 2021.
Highest qualification · residents 16 and over
Degree-level qualifications are held by 30% of adults in Llansannan (Wales’s towns: 31%), and no qualification by 20% (Wales’s towns: 20%).
Around Llansannan, 4 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 |
|---|---|---|---|---|---|
| Llansannan | 308 | — | 46.2 | 24% | 24% |
| Abergele | 8,531 | 7.2 mi | 52.2 | 33% | 21% |
| Bodelwyddan | 1,785 | 7.4 mi | 42.2 | 20% | 30% |
| Mynydd Marian | 1,351 | 7.6 mi | 39.8 | 15% | 34% |
| Denbigh | 8,072 | 7.6 mi | 43.5 | 21% | 27% |
| Llanddulas | 1,097 | 7.9 mi | 53.2 | 32% | 20% |
| Pensarn | 1,329 | 8 mi | 57.8 | 37% | 11% |
| St Asaph | 3,483 | 8.3 mi | 48.7 | 26% | 24% |
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.
- “Clwyd’s towns” and “Wales’s towns” mean their built-up areas. Census comparisons pool every built-up area in Clwyd (or Wales), summed the same way as Llansannan’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 Llansannan’s residents
What is the population of Llansannan?
The 2021 Census counted 308 people in Llansannan’s built-up area.
What is the average age in Llansannan?
The median age was 46.2 at the 2021 Census. 8.4% of residents were 15 to 24 and 24% were 65 or over.
How diverse is Llansannan?
94% of residents described themselves as White British in 2021, against 90% across Wales’s towns and 92% across Clwyd’s towns. 5.5% were born outside the UK.
What religion are people in Llansannan?
33% said they had no religion and 61% that they were Christian at the 2021 Census; 0% were Muslim and 4.9% didn’t answer.
Is Llansannan good for families?
24% of households had dependent children in 2021, against 27% across Wales’s towns. Schools are on Llansannan’s schools page.
How many people speak Welsh in Llansannan?
215 residents aged 3 and over, 71%, 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.