3 listed buildings
Cadw lists them inside Llanerchymedd’s built-up area.
46% of its homes were built before 1919, against 15% in the typical UK town.
Explore the history →Each edition grades its towns against each other only.

The village has 1,155 residents and lies in Gwynedd, Wales.
Where it does best is cost of living — a typical home costs £170,975 and rent runs £714 a month. It is a safe place by the numbers: police record 21.9 violent and sexual offences per 1,000 residents a year, and 3.5 home and vehicle crimes. Jobs and pay trail most towns: the mean household earns £43,135 a year. Walkability is weaker too — 6% of commuters walk, cycle or take public transport.
Figures: prices, HM Land Registry, the last three years · crime, police.uk, averaged Sep 2023 to Aug 2026 · income, ONS · claimants, DWP · commuting, Census 2021. With fewer than 2,500 residents, Llanerchymedd has subject grades but no overall one.
This town's Health Grade uses ONS's small-area life expectancy and healthy life expectancy for 2019 to 2023, and two Census 2021 measures, bad health and disability, adjusted for age. English towns' grades also use OHID's small-area early deaths, hospital admissions and child obesity, which OHID publishes for England only.
The 3 things Llanerchymedd does most differently from other towns.
Each subject compared with the 2,160 UK towns with an overall grade (schools within Wales), ordered by how far Llanerchymedd is from typical. American towns are graded separately.
With fewer than 2,500 residents, Llanerchymedd has subject grades but no overall one.
How TownRatings grades towns →
Cadw lists them inside Llanerchymedd’s built-up area.
46% of its homes were built before 1919, against 15% in the typical UK town.
Explore the history →Data highlights are ordered by what stands out in Llanerchymedd.
The Census was taken on 21 March 2021, in lockdown, so 16% of workers were mainly at home; shares here are of those who travelled.
93% of commuters took the car to work at the census. About 7% of its commuters stay in Llanerchymedd for work. Home was the main workplace for 16% of workers at the census.
ONS Census 2021, method of travel and distance to work · ONS small-area income · DWP claimant count · OGL
It is shown below. 123 pupils attend Llanerchymedd’s one primary school.
| School | Level | Pupils | Letter |
|---|---|---|---|
| Ysgol Gymuned Llannerch-y-meddLargest primary schoolPrimary | Primary | 123 | – |
14% of households rent privately. The median sale, £170,975, comes from 50 standard sales inside Llanerchymedd’s built-up area from September 2023 to August 2026. Owners make up 62% of households, about level with Gwynedd’s towns (63%) and below Wales’s towns (65%).
| By type | Median | Sales |
|---|---|---|
| Detached | £245,000 | 19 |
| Terraced | £136,500 | 27 |
HM Land Registry Price Paid · ONS private rents · MHCLG / Welsh Government council tax · ONS Census 2021 tenure · OGL
The nearest A&E to Llanerchymedd is Ysbyty Gwynedd, 12.2 miles away. Women here live to 80.2 on average and men to 78.3 (2019–23). Seeing a GP means leaving Llanerchymedd: the nearest practice is 5.4 miles away.
| Census 2021 | Llanerchymedd | Gwynedd | Wales |
|---|---|---|---|
| Good or very good health | 81% | 80% | 78% |
| Bad or very bad health | 5.6% | 5.5% | 7.1% |
| Disabled (Equality Act) | 17% | 20% | 22% |
ONS Census 2021, general health and disability · ONS, life expectancy 2019–23 · OGL · No age adjustment applies to these census answers, which flatter younger towns; the Health Grade’s measures, life expectancy among them, do allow for age.
A year of reports to August 2026 adds up to 45 offences in Llanerchymedd and 19 cases of nuisance behaviour. Violence and sexual offences made up 64% of the total. Anti-social behaviour, shown but not graded, came to 10.7 reports per 1,000, lower than Gwynedd’s towns (16.3) and near Wales’s towns (10.4).
Not gradedAnti-social behaviour, shoplifting and other theft are shown but left out of the Safety Grade, which counts violence and crimes against homes and vehicles per resident.
data.police.uk street-level crime · points inside the ONS built-up-area boundary · OGL · The police category of violence and sexual offences includes harassment and stalking.
The heritage lists give each building’s grade but not its age, so we don’t say which is oldest.
Grade II covers all 3 listed buildings that Cadw records here. Relative to its size, Llanerchymedd keeps 26 listed buildings per 10,000 residents, between Gwynedd’s towns (78) and Wales’s towns (18).
Cadw list, October 2026 · Valuation Office Agency, homes by build period · OGL
Children under 15 make up 19%, above both Gwynedd’s towns (16%) and Wales’s towns (17%). Line up the people of Llanerchymedd by age and the one in the middle is 44.3. 30% of adults hold a degree.
50% women, 50% men
About an even split. Across Wales, 51% of residents are women.
| Llanerchymedd | Gwynedd | Wales | |
|---|---|---|---|
| Under 15 | 19% | 16% | 17% |
| 15–24 | 9.9% | 13% | 12% |
| 25–44 | 22% | 22% | 25% |
| 45–64 | 29% | 26% | 26% |
| 65+ | 21% | 23% | 21% |
| No qualifications | 18% | 18% | 20% |
| Apprenticeship | 7.2% | 6.1% | 5.6% |
| A levels or similar | 18% | 19% | 17% |
| Degree level | 30% | 32% | 31% |
ONS Census 2021 · Gwynedd and Wales: all residents of their built-up areas · OGL
The nearest built-up areas, from ONS’s 2022 boundaries. See them on the map →
| Town | People | Miles | Overall | Cost | Safety | Health |
|---|---|---|---|---|---|---|
| Llanerchymedd | 1,155 | — | — | A | B+ | C− |
| Llangefni | 5,264 | 5.7 | C | A | D | C |
| Amlwch | 3,148 | 5.7 | C+ | A | C | C− |
| Bodedern | 1,193 | 5.8 | — | A− | B− | C− |
| Benllech | 2,072 | 6.1 | — | B− | A− | C+ |
| Cemaes | 1,023 | 6.5 | — | B+ | B− | C− |
| Valley | 2,003 | 8.4 | — | B | B | C+ |
| Gaerwen | 1,277 | 8.6 | — | A | B− | B− |
Bodedern, Benllech, Cemaes, Valley and Gaerwen have fewer than 2,500 residents, so they get subject grades but no overall grade. People: Census 2021. Miles: centre to centre.
3 on Cadw’s list.
Homes cost less than in most UK towns: the median sale over three years was £170,975, against £277,000 in the typical UK town. By type: terraced houses £136,500 and detached houses £245,000.
Surface water isn’t included. Check a specific address on Natural Resources Wales’s flood risk service.
Village in Gwynedd, Wales
Llanerchymedd is a built-up area of 1,155 people, in the Isle of Anglesey council area. TownRatings uses ONS’s 2022 built-up areas as towns: the physical town, as people mean the word, rather than a council district, so its figures cover the town itself.
Built from ONS geography and Census 2021
Sources: ONS Census 2021, output areas summed to the ONS 2022 built-up area · HM Land Registry Price Paid (standard sales, September 2023 to August 2026) · ONS Price Index of Private Rents (August 2026, by council) · MHCLG and Welsh Government council tax, Band D 2026–27 (with parish precepts in England) · data.police.uk street-level crime, 36 months to August 2026, points inside the built-up-area boundary · ONS small-area life expectancy and healthy life expectancy, 2019 to 2023 (England and Wales), OHID Fingertips small-area indicators (England) and Census 2021 health, adjusted for age · ONS small-area income estimates (financial year ending 2023) · DWP claimant count via Nomis (January to August 2026) · Cadw listed buildings, scheduled monuments and registered historic parks and gardens via DataMapWales, October 2026, inside the ONS 2022 built-up-area boundary · Valuation Office Agency, Council Tax: stock of properties by build period (31 March 2025) · TownRatings grades: our own summary of the data, ranked against UK towns only. 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.