Gwalchmai’s story
2 listed buildings, 1 of them Grade II*
Cadw lists them inside Gwalchmai’s built-up area.
36% of its homes were built before 1919, against 15% in the typical UK town.
Explore the history →
GwalchmaiGwynedd
A village in Gwynedd, Wales, home to 386 people.
7 places within 12 milesMap →
Church of St. Morhaiarn · Photo: RobinLeicester · CC BY-SA 3.0
Population
386
Census 2021 · Isle of Anglesey council
Median home
£156K
10 sales in 3 years
Median age
40
18% are 65+ · Gwynedd 23%
Degree level
36%
of residents 16+ · Wales 31%
Walk, cycle, bus
7%
of commuters · Wales 16%
Is Gwalchmai a good place to live?
Gwalchmai has fewer than 1,000 residents, too few for fair grades; the figures on this page are still real. Walking, cycling and public transport carry 7% of commuters. 36% of its homes date from before 1919. Homes sell for a median £156,000.
What makes Gwalchmai stand out
The 3 things Gwalchmai does most differently from other towns.
Walk, cycle or public transport
Getting around
7% leave the car
of commuters walk, cycle or take public transport (Wales’s towns 16%)
Homes built before 1919
History
Against 15% in the typical UK town
Valuation Office Agency, homes by build period.
Median sale, £ thousands
Housing
44% below the typical UK town’s £277K
Standard sales, September 2023 to August 2026.
The data
Data highlights are ordered by what stands out in Gwalchmai.
Work & commute
Fewer commuters in Gwalchmai work nearby than in Gwynedd’s towns or Wales’s towns: 4% travel under 5 km
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.
Nine in ten commuters took the car to work at the census. Unemployment benefit claims came to 3.4% of 16 to 64s in 2026, above Gwynedd’s towns (3.2%) and Wales’s towns (3%) alike. There are 0.4 jobs in Gwalchmai for each resident in work.
7%walk, cycle or ride
How commuters got to work · March 2021
Driving90%
On foot4%
Bus3%
4%
of commuters travel under 5 km · Wales 41%
19%
worked mainly from home in March 2021
£45K
mean household income, before tax
3.4%
of 16 to 64s claim unemployment benefits (2026)
ONS Census 2021, method of travel and distance to work · ONS small-area income · DWP claimant count · OGL
Schools
1 state school in Gwalchmai
It is listed below. The town’s primary school has 82 pupils.
| School | Level | Pupils | Letter |
|---|---|---|---|
| Ysgol Gymuned y FfriddLargest primary schoolPrimary | Primary | 82 | – |
Welsh Government · schools list · Wales publishes no school-level results, so its schools have no letters.The Schools page →
Housing
Private renting is more common in Gwalchmai than in Gwynedd’s towns or Wales’s towns: 26% of households
1% of households live in social housing. Owners make up 73% of households, above Gwynedd’s towns (63%) and Wales’s towns (65%) alike. Private rents average £714 a month across the Isle of Anglesey council area.
£156Kmedian sale
Median sale price · Sep 2023 to Aug 2026
Gwalchmai£156K
Typical UK town£277K
| By type | Median | Sales |
|---|---|---|
| Detached | £217,500 | 6 |
73%
of households own their home · Wales 65%
26%
rent privately · Wales 17%
£714
average private rent a month, Isle of Anglesey council area
£2,261
council tax, Band D, 2026–27
HM Land Registry Price Paid · ONS private rents · MHCLG / Welsh Government council tax · ONS Census 2021 tenure · OGL
Safety
Crime recorded by police in Gwalchmai
Violence and sexual offences were three quarters of the crimes. Gwalchmai logged 16 reported offences in a year (to August 2026), plus 3 complaints of anti-social conduct. Anti-social behaviour, shown but not graded, came to 20.7 reports per 1,000, above Gwynedd’s towns (15.7) and Wales’s towns (10.4) alike.
32.8violent and sexual offences per 1,000 a year
Reports by type · Sep 2025 to Aug 2026
Violence & sexual12
Damage & arson3
Other theft1
Shoplifting0
Public order0
Burglary0
Drugs0
Vehicle crime0
Anti-social3
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.
32.8
violent and sexual offences per 1,000 residents a year, averaged Sep 2023 to Aug 2026
8.6
burglary, vehicle crime and damage per 1,000 a year, averaged Sep 2023 to Aug 2026
20.7
anti-social behaviour reports per 1,000 (not graded)
16
crimes recorded in the 12 months to August 2026
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.
Health
Fewer people in Gwalchmai live with a disability than in Gwynedd’s towns or across Wales’s towns: 14%
84% of Gwalchmai’s residents described their health as good or very good at the census, higher than both Gwynedd’s towns (80%) and Wales’s towns (78%). Poor health, by residents’ own account, affects 4.4% of the town. Also worth knowing: the nearest A&E to Gwalchmai is Ysbyty Gwynedd, 11.1 miles away.
84%good or very good health
General health, self-reported
Good or very good 84%Fair 11%Bad or very bad 4%
| Census 2021 | Gwalchmai | Gwynedd | Wales |
|---|---|---|---|
| Good or very good health | 84% | 80% | 78% |
| Bad or very bad health | 4.4% | 5.5% | 7.1% |
| Disabled (Equality Act) | 14% | 20% | 22% |
Welsh towns’ Health Grades use 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’ also use OHID’s small-area early deaths, hospital admissions and child obesity, which OHID publishes for England only.
ONS Census 2021, general health and disability · OGL · Census health answers are raw, so younger towns score better on them; for the Health Grade we use age-adjusted figures like life expectancy.
History
Gwalchmai’s listed buildings include the Church of St. Morhaiarn, Grade II*
The heritage lists give each building’s grade but not its age, so we don’t say which is oldest.
Gwalchmai counts 2 listed buildings on the national list (Cadw): 1 Grade II*. For its size, Gwalchmai has 52 listed buildings per 10,000 residents.
2listed buildings
Listed buildings by grade · Cadw
Grade I0
Grade II*1
Grade II1
Among them · Grade II*
- Church of St. Morhaiarn Grade II*
0
scheduled monuments
0
registered parks and gardens
36%
of homes built before 1919 · typical UK town 15%
52
listed buildings per 10,000 residents · typical UK town 24
Cadw list, October 2026 · Valuation Office Agency, homes by build period · OGL
Who lives here
Children make up 19% of Gwalchmai, above Gwynedd’s towns and Wales’s towns
Degrees are held by 36% of adults. 18% of residents are 65 or over, below both Gwynedd’s towns (23%) and Wales’s towns (21%). Line up the people of Gwalchmai by age and the one in the middle is 40.
40median age
GwalchmaiGwyneddWales
Ages · share of residents
13%
Qualifications · residents 16 and older
No qualifications16%
Apprenticeship5%
A levels or similar17%
Degree level36%
Women and men · all residents
51% women, 49% men
About an even split. Across Wales, 51% of residents are women.
| Gwalchmai | Gwynedd | Wales | |
|---|---|---|---|
| Under 15 | 19% | 16% | 17% |
| 15–24 | 13% | 13% | 12% |
| 25–44 | 25% | 22% | 25% |
| 45–64 | 24% | 26% | 26% |
| 65+ | 18% | 23% | 21% |
| No qualifications | 16% | 18% | 20% |
| Apprenticeship | 4.8% | 6.1% | 5.6% |
| A levels or similar | 17% | 19% | 17% |
| Degree level | 36% | 32% | 31% |
ONS Census 2021 · Gwynedd and Wales: all residents of their built-up areas · OGL
Keep exploring
Everything we know about Gwalchmai
12pages on Gwalchmai
The big questions
Safety32.8 violent and sexual offences per 1,000 residents a year, averaged Sep 2023 to Aug 2026Cost of livingMedian home £156K · rent £714 a monthHousing2 sold in 12 monthsSchools1 state school (no results published in Wales)HealthWork & commute32% of working residents work in the townFlood & hazards0% of homes at high or medium flood risk
Gwalchmai’s neighbours
The nearest built-up areas, from ONS’s 2022 boundaries. See them on the map →
BodedernLlangefniLlanerchymeddGaerwenValleyBenllechLlanfair PwllgwyngyllGwalchmai
How the neighbours grade
| Town | People | Miles | Overall | Cost | Safety | Health |
|---|---|---|---|---|---|---|
| Gwalchmai | 386 | — | — | — | — | — |
| Bodedern | 1,193 | 4.2 | — | A− | B− | C− |
| Llangefni | 5,264 | 4.4 | C | A | D | C |
| Llanerchymedd | 1,155 | 5.2 | — | A | B+ | C− |
| Gaerwen | 1,277 | 6.4 | — | A | B− | B− |
| Valley | 2,003 | 6.5 | — | B | B | C+ |
| Benllech | 2,072 | 8.8 | — | B− | A− | C+ |
| Llanfair Pwllgwyngyll | 2,905 | 9.1 | B+ | B | A− | B+ |
Bodedern, Llanerchymedd, Gaerwen, 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.
Questions about Gwalchmai
How many listed buildings are there in Gwalchmai?
2 on Cadw’s list, 1 of them Grade II*. That is 2.1 times the typical UK town for its size.
How much is council tax in Gwalchmai?
Band D council tax in Gwalchmai is £2,261 for 2026–27, less than in 79% of UK towns (the Isle of Anglesey council average, with police and community councils). Your own bill depends on your home’s band; check it on GOV.UK.
About Gwalchmai
Village in Gwynedd, Wales
Gwalchmai is a built-up area of 386 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
- Population
- 386 (Census 2021)
- Council
- Isle of Anglesey
- County
- Gwynedd
- Region
- Wales
- Area
- 0.1 sq mi (0.3 km²)
- ONS code
- W45000048
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.