Daylight through the yearLongest day (Jun 21): 16 h 40 min4:54 am – 9:35 pmShortest day (Dec 21): 7 h 48 min8:17 am – 4:05 pm
Sun todaySunrise –Sunset –
People8,681 residentsin the Treharris & Trelewis census areaMedian age 42.13,703 households73% of homes owner-occupied39% owned outright13% social rented, 14% private rentedSource: Office for National Statistics, Census 2021
Work and commuting4.5% unemployment rate59% of adults are economically active, 3,996 in work, 23% retiredMain industries: health and social work 18%, retail and wholesale 13%, construction 11%Getting to work: 22% work from home, 70% go by car, 3% take public transport, 4% walk or cycle41% of those who travel work within 10 km of homeSource: Office for National Statistics, Census 2021
Education and languages26% of adults hold a degree or higher24% have no qualifications, 6% an apprenticeshipMain language: English or Welsh 99%Source: Office for National Statistics, Census 2021
ClimateWarmest month July: highs 20°C, lows 12°CColdest month January: highs 7°C, lows 1°C1,795 mm of rain a year, 61 days with 10 mm or morewettest month December47 days of air frost, 6 summer days above 25°C in a typical yearSource: Met Office HadUK-Grid 1991-2020 averages, 2 km grid (highs and lows from the 12 km grid)
Nearby landmarksPen y Foelmountain · 2.4 miBwlch Carn-y-Gellimountain · 3.2 miCwm Cothivalley · under a mileCwm Mafonvalley · 1.0 miCefn Merthyrhill · 1.3 miSt Tydfil Forestforest · 2.3 miSource: Ordnance Survey Open Names
Parks and green spacesTreharris Parkpark · under a mile · 7 haParc Penalltapark · 2.0 mi · 123 haParc Mileniwm Taf Bargoedsports ground · under a mile · 6 haWhitehall Golf Coursegolf course · 1.0 mi · 12 haShingrig Road Allotmentsallotments · 1.0 miParc Coetir Bargodpark · 3.4 mi · 96 haSource: Ordnance Survey Open Greenspace
Earthquakes98 of magnitude 2 or more within 50 miles since 197018 of magnitude 3+, 3 of magnitude 4+Largest: magnitude 4.0 on 17 Feb 201824 mi away, Cwmllynfell, NptMost recent: magnitude 2.0 on 12 May 202649 mi away, Llanbister, PowysSource: British Geological Survey earthquake database
Air qualityNO2 5.7 · PM2.5 5.2 · PM10 7.9 µg/m³annual mean concentrations, 2024Within UK limits, above the WHO guideline for PM2.5Source: DEFRA modelled background pollution maps 2024, 1 km grid
Broadband50% of premises can get gigabit-capable broadband100% can get superfast (30 Mbit/s or more)Every premises can get at least 10 Mbit/s (the universal service obligation)3,947 residential premises in the census areaSource: Ofcom Connected Nations, July 2025
Elevation171 m561 ft above sea levelLand within 1 km ranges from 85 to 288 mSource: Ordnance Survey, OS Terrain 50
Local servicesHospitalPontypridd & District Hospital4.4 miGP surgeryTreharris Primary Care Centre4 surgeries within 2 milesright herePharmacyWell4 pharmacies within 2 milesright hereDentistTreharris Dental Clinicright hereSource: NHS Organisation Data Service
SchoolsWithin 2 mi6 schools6 primaryPrimaryTrelewis Primary School244 pupilsunder a milePrimaryEdwardsville Primary School335 pupilsunder a mileAll-throughYsgol Bro Taf902 pupils2.9 miSource: Welsh Government, address list of schools
Getting aroundAirportCardiff International Airport CWL19 miRailway stationQuakers Yardunder a mileBus stationTreharris Bus Station 1under a mileFerryCardiff Castle Waterbus Stop14 miBus stops70 within a mileSources: Department for Transport NaPTAN; OurAirports
Distances in these cards are measured from the centre of the CF46 postcode district.
