1 listed building
Cadw lists them inside Cemaes’ built-up area.
32% 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.

A village of 1,023 in Gwynedd, Wales.
Cemaes has fewer than 2,500 residents, so it gets subject grades but no overall grade. Its strongest subject is cost of living (B+): median sale £250,000, 5.6 years of area income; rent £714 a month. Its weakest is jobs & income (D−): mean household income £43,135; 3.7% of 16 to 64s claim unemployment benefits.
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 Cemaes 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 Cemaes is from typical. American towns are graded separately.
How TownRatings grades towns →
Cadw lists them inside Cemaes’ built-up area.
32% 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 Cemaes.
In the comparison, Cemaes comes below both Gwynedd’s towns (13%) and Wales’s towns (12%). 37% of residents are 65 or over. Cemaes has a median age of 57.2.
51% women, 49% men
About 95 men for every 100 women. Across Wales, 51% of residents are women.
| Cemaes | Gwynedd | Wales | |
|---|---|---|---|
| Under 15 | 12% | 16% | 17% |
| 15–24 | 6.3% | 13% | 12% |
| 25–44 | 17% | 22% | 25% |
| 45–64 | 28% | 26% | 26% |
| 65+ | 37% | 23% | 21% |
| No qualifications | 17% | 18% | 20% |
| Apprenticeship | 10% | 6.1% | 5.6% |
| A levels or similar | 15% | 19% | 17% |
| Degree level | 31% | 32% | 31% |
ONS Census 2021 · Gwynedd and Wales: all residents of their built-up areas · OGL
Its one school is below. Wales publishes no school-level results, so its schools have no letters.
| School | Level | Pupils | Letter |
|---|---|---|---|
| Ysgol Gynradd CemaesLargest primary schoolPrimary | Primary | 63 | – |
For Cemaes, that is below both Gwynedd’s towns (80%) and Wales’s towns (78%). Cemaes’ share in bad or very bad health, 7.8%, is the second highest of the 33 towns in Gwynedd. These answers aren’t adjusted for age, so young towns look healthier; the Health Grade uses age-adjusted measures, including life expectancy.
| Census 2021 | Cemaes | Gwynedd | Wales |
|---|---|---|---|
| Good or very good health | 74% | 80% | 78% |
| Bad or very bad health | 7.8% | 5.5% | 7.1% |
| Disabled (Equality Act) | 24% | 20% | 22% |
ONS Census 2021, general health and disability · ONS, life expectancy 2019–23 · OGL
Cemaes sits above both Gwynedd’s towns (63%) and Wales’s towns (65%) on this measure. Social housing holds 15% of households.
| By type | Median | Sales |
|---|---|---|
| Detached | £289,950 | 27 |
| Terraced | £160,000 | 12 |
HM Land Registry Price Paid · ONS private rents · MHCLG / Welsh Government council tax · ONS Census 2021 tenure · OGL
The heritage lists give each building’s grade but not its age, so we don’t say which is oldest.
That puts Cemaes above both Gwynedd’s towns (4%) and Wales’s towns (0%). Cemaes has 1 listed building on Cadw’s list: 0 Grade I, 0 Grade II*. 32% of homes were built before 1919.
Cadw list, October 2026 · Valuation Office Agency, homes by build period · OGL
On this, Cemaes is below both Gwynedd’s towns (9.2) and Wales’s towns (10.7). Police recorded 47 crimes inside Cemaes’s built-up area in the 12 months to August 2026, plus 14 reports of anti-social behaviour. Violence and sexual offences were 70% of the crimes; the police category includes harassment and stalking.
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 Census was taken on 21 March 2021, in lockdown, so 19% of workers were mainly at home; shares here are of those who travelled.
At the census, 14% went to work on foot, by bike or by public transport, below both Gwynedd’s towns (19%) and Wales’s towns (16%). 84% of commuters drove to work at the census.
ONS Census 2021, method of travel and distance to work · ONS small-area income · DWP claimant count · OGL
The nearest built-up areas, from ONS’s 2022 boundaries. See them on the map →
| Town | People | Miles | Overall | Cost | Safety | Health |
|---|---|---|---|---|---|---|
| Cemaes | 1,023 | — | — | B+ | B− | C− |
| Amlwch | 3,148 | 4.5 | C+ | A | C | C− |
| Llanerchymedd | 1,155 | 6.5 | — | A | B+ | C− |
| Bodedern | 1,193 | 8.5 | — | A− | B− | C− |
| Valley | 2,003 | 9.8 | — | B | B | C+ |
| Holyhead | 11,753 | 10 | C− | A | D | D |
| Benllech | 2,072 | 11 | — | B− | A− | C+ |
Llanerchymedd, Bodedern, Valley and Benllech have fewer than 2,500 residents, so they get subject grades but no overall grade. People: Census 2021. Miles: centre to centre.
1 on Cadw’s list.
Surface water isn’t included. Check a specific address on Natural Resources Wales’s flood risk service.
Village in Gwynedd, Wales
Cemaes is a built-up area of 1,023 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.