Each edition grades its towns against each other only.
This town in Mid Glamorgan, Wales has a population of 7,645.
Jobs and pay trail most towns: mean household income £38,603; 4% of 16 to 64s claim unemployment benefits. Its strongest is cost of living — the median home sold for £127,000, 3 years of area income. Put together, the subjects come to a C− overall, better than just over a fifth of UK towns. That places it #8 of 32 in Mid Glamorgan. Health lags (D): 9.4% in bad or very bad health, 23.7% disabled. Hazard risk is higher than most: 8.5% of homes face a high or medium risk of river or sea flooding.
Figures: prices, HM Land Registry, the last three years · income, ONS · claimants, DWP · health, Census 2021 (the grade adjusts for age) · flood risk, Natural Resources Wales.
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 Treorchy 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 Treorchy is from typical. American towns are graded separately.
How TownRatings grades towns →
Cadw lists 5 buildings inside Treorchy’s built-up area, 1 of them Grade II*.
83% 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 Treorchy.
One GP practice serves the town. Life expectancy here is 81.6 for women and 78.2 for men (2019–23). The nearest A&E to Treorchy is Prince Charles Hospital, 8.9 miles away.
| Census 2021 | Treorchy | Mid Glamorgan | Wales |
|---|---|---|---|
| Good or very good health | 74% | 77% | 78% |
| Bad or very bad health | 9.4% | 8.2% | 7.1% |
| Disabled (Equality Act) | 24% | 23% | 22% |
ONS Census 2021, general health and disability · ONS, life expectancy 2019–23 · OGL · Young towns look healthier on these answers, which aren’t adjusted for age; the Health Grade uses measures that are, such as life expectancy.
Three of them are below, each with the reason it’s listed. Treorchy’s three primaries and one secondary have 2,304 pupils between them.
| School | Level | Pupils | Letter |
|---|---|---|---|
| Treorchy Primary SchoolLargest primary schoolPrimary | Primary | 408 | – |
| Treorchy Comprehensive SchoolLargest secondary schoolSecondary | Secondary | 1,433 | – |
| Ysgol G.G. YnyswenLargest Welsh-medium schoolPrimary | Primary | 222 | – |
Social renters account for 8% of households. Private rents average £754 a month across the Rhondda Cynon Taf council area. 19% rent privately, higher than both Mid Glamorgan’s towns (17%) and Wales’s towns (17%).
| By type | Median | Sales |
|---|---|---|
| Detached | £336,000 | 16 |
| Semi-detached | £165,000 | 15 |
| Terraced | £124,995 | 241 |
HM Land Registry Price Paid · ONS private rents · MHCLG / Welsh Government council tax · ONS Census 2021 tenure · OGL
The Census was taken on 21 March 2021, in lockdown, so 18% of workers were mainly at home; shares here are of those who travelled.
31% of commuters travelled under 5 km, below Mid Glamorgan’s towns (35%) and Wales’s towns (41%) alike. About nearly a fifth of its commuters stay in Treorchy for work. For every resident in work, Treorchy has 0.7 jobs.
ONS Census 2021, method of travel and distance to work · ONS small-area income · DWP claimant count · OGL
49% of the crimes fell under violence and sexual offences. Police figures for Treorchy’s built-up area: 522 crimes and 111 anti-social behaviour reports in the 12 months to August 2026. For its size, Treorchy records more crime per resident than 72% of the 1,308 UK towns of 2,500 to 10,000 people.
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.
Treorchy counts 5 listed buildings on the national list (Cadw): 1 Grade II*. It has 7 listed buildings for every 10,000 residents, below Mid Glamorgan’s towns (9) and Wales’s towns (18) alike.
Cadw list, October 2026 · Valuation Office Agency, homes by build period · OGL
Retirement age and beyond: 22% of residents are 65 or older. At 44.2, the median resident of Treorchy sits in the middle of the age range. Graduates make up just over a quarter of adults.
52% women, 48% men
About 94 men for every 100 women. Across Wales, 51% of residents are women.
| Treorchy | Mid Glamorgan | Wales | |
|---|---|---|---|
| Under 15 | 16% | 17% | 17% |
| 15–24 | 12% | 11% | 12% |
| 25–44 | 23% | 25% | 25% |
| 45–64 | 27% | 27% | 26% |
| 65+ | 22% | 20% | 21% |
| No qualifications | 24% | 24% | 20% |
| Apprenticeship | 5.5% | 5.3% | 5.6% |
| A levels or similar | 17% | 16% | 17% |
| Degree level | 26% | 28% | 31% |
ONS Census 2021 · Mid Glamorgan and Wales: all residents of their built-up areas · OGL
5 listed buildings in Treorchy.
Railway footbridge: Photo: Jaggery · CC BY-SA 2.0 · Church of St George: Photo: Jaggery · CC BY-SA 2.0
21 notable people were born in Treorchy.
John Davies: Fæ, CC BY-SA 3.0 · Euros Bowen: Geoff Charles, CC BY-SA 4.0 · Tomos Williams: Stefano Delfrate, CC BY-SA 2.0 · Iorwerth Thomas: Geoff Charles, CC0
The nearest built-up areas, from ONS’s 2022 boundaries. See them on the map →
| Town | People | Miles | Overall | Cost | Safety | Health |
|---|---|---|---|---|---|---|
| Treorchy | 7,645 | — | C− | B+ | C | D |
| Maerdy | 2,843 | 1.5 | D | B+ | D− | D− |
| Treherbert | 5,427 | 1.6 | D | B+ | C− | D− |
| Rhondda | 13,271 | 1.9 | D | B+ | C− | D− |
| Ferndale | 4,301 | 2.7 | C | B+ | C | D− |
| Nant-y-moel | 2,378 | 3 | — | A− | B− | D− |
| Tylorstown and Pontygwaith | 3,551 | 3.5 | D | A− | D | D− |
| Tonypandy | 17,209 | 4 | C− | B+ | C− | D− |
Nant-y-moel has fewer than 2,500 residents, so it gets subject grades but no overall grade. People: Census 2021. Miles: centre to centre.
By type: terraced houses £124,995, semi-detached houses £165,000 and detached houses £336,000.
5 on Cadw’s list, 1 of them Grade II*.
Surface water isn’t included. Check a specific address on Natural Resources Wales’s flood risk service.
Burglary was rare, with 11 reports in the year.
Town in Mid Glamorgan, Wales
Treorchy is a built-up area of 7,645 people, in the Rhondda Cynon Taf 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.
