Rhondda Cynon Taf (Welsh pronunciation: [ˈr̥ɔnða ˈkənɔn ˈtaːv]; RCT; also spelt as Rhondda Cynon Taff) is a county borough in the south-east of Wales. It consists of five valleys: the Rhondda Fawr, Rhondda Fach, Cynon, Taff (Welsh: Taf) and Ely valleys, plus a number of towns and villages away from the valleys.

Rhondda Cynon Taf
County Borough
Bwrdeistref Sirol
Rhondda Cynon Taf
Coat of arms of Rhondda Cynon Taf County Borough
Location of Rhondda Cynon Taf County Borough
Admin HQPontypridd
Largest townAberdare
 • TypeRhondda Cynon Taf County Borough Council
 • ControlNo overall control
 • MPs
 • MSs
 • Total424 km2 (164 sq mi)
 • RankRanked 13th
 • Total239,018
 • RankRanked 3rd
 • Density564/km2 (1,460/sq mi)
  • RankRanked 8th
 • Ethnicity
98.9% White
Welsh language
 • RankRanked 13th
 • Speakers12.4%[1]
Geocode00PF (ONS)
W06000016 (GSS)
ISO 3166 codeGB-RCT

Results from the 2011 census showed 19.1% of its 234,410 residents self-identified as having some ability in the use of the Welsh language.[2] The county borough borders Merthyr Tydfil County Borough and Caerphilly County Borough to the east, Cardiff and the Vale of Glamorgan to the south, Bridgend County Borough and Neath Port Talbot to the west and Powys to the north. Its principal towns are - Aberdare, Llantrisant with Talbot Green and Pontypridd, with other key settlements/towns being - Maerdy, Ferndale, Hirwaun, Llanharan, Mountain Ash, Porth, Tonypandy, Tonyrefail and Treorchy.

The most populous individual town in Rhondda Cynon Taf is Aberdare (Welsh: Aberdâr) with a population of 39,550 (2011), followed by Pontypridd with 32,694 (2011). The largest built-up area as defined by the Office for National Statistics is the Tonypandy built-up area, with a population of 62,545 (2011), which covers much of the Rhondda valley.[3] The National Eisteddfod will be held at Rhondda Cynon Taf in 2024, postponed twice from 2022.[4]



The county borough was formed on 1 April 1996, by the merger of the former Mid Glamorgan districts of Rhondda, Cynon Valley and Taff-Ely (with the exceptions of Creigiau and Pentyrch, which were added to Cardiff). Its name reflects all these, and thus also the rivers Rhondda, Cynon and Taff. Pontypridd, a University and Market Town, is the principal town of Rhondda Cynon Taf; situated 12 miles north of the capital city of Cardiff. Pontypridd is often abbreviated “Ponty” by local residents.

Some of Wales' most notorious unsolved murders occurred in Rhondda Cynon Taf in 1993, the murders of Harry and Megan Tooze in Llanharry.[5]



The district developed from the discovery and mining, primarily for export, of high-quality Welsh coals, such as steam coal, via Cardiff and Barry docks. The landscape was dominated by coal waste heaps and deep mine pit-heads. Many of the roads are lined with semi-ribbon development of closely packed Victorian terraces of houses which have given the Rhondda and Cynon valleys their distinctive appearance. In the nineteenth century the Rhondda had over 60 mines.

As deep mines closed, a number of very large open-cast coal mines were created and remain in operation, especially towards the north of the area.

The Welsh Development Agency, which was formed in 1976 to help reverse the economic down-turn in Wales caused by the recession in both the coal and steel industries, was very active in the Rhondda Cynon Taf area in supporting and encouraging industrial and commercial regeneration. Recent investment in the area has included the Dragon International Film Studios, on the site of Llanilid open-cast mine. The location of the project has led it to become known locally as "Valleywood", even though the Welsh valleys are some miles away.


Wildfires on the hillsides of the Valleys.

The coal industry has had major adverse impacts on the quality of the environment, such that most of the rivers were severely polluted to the exclusion of all fish life. Recent decades have shown great improvement with the return of salmon recorded in the River Taff and the River Rhondda but the continued presence of man-made obstacles in the rivers is inhibiting regeneration of their pre-industrial numbers and condition.

The chemical industry has also had adverse effects due to the dumping of toxic waste in the now disused Brofiscin Quarry in the village of Groes-faen. Dumping took place over a 6-year period between 1965 and 1970 by the Monsanto Company.[6] Clean-up costs have been estimated to be over £100 million. A Dr Papageorge, formerly Monsanto's chief scientist, estimates that between 60,000 and 80,000 tonnes of polychlorinated biphenyl (PCB) contaminated wastes were dumped there.[7] Works costing £1.25 million to reduce health risks to local residents and members of the public using a nearby footpath were completed at the quarry in 2012.[8] Monsanto, BP and Veolia contributed to the cost of the clean-up while continuing to deny liability.[8]



The area is governed by Rhondda Cynon Taf County Borough Council from headquarters in Pontypridd and is the host authority to the South East Wales Improvement Collaborative (SEWIC), Excellence Wales award winner 2010. Rhondda Cynon Taf is represented by four MPs in the UK Parliament until 2024. There are also four constituencies represented in the Senedd (Welsh Parliament).

The five UK parliament constituencies covering Rhondda Cynon Taf (in pink) from 2024. 1 = Merthyr Tydfil and Aberdare, 2 = Rhondda and Ogmore, 3 = Pontypridd, 4 = Cardiff West, and 5 = Cardiff North.

From 2024, Rhondda Cynon Taf would be in five UK Parliament constituencies, Merthyr Tydfil and Aberdare, Rhondda and Ogmore, Pontypridd, Cardiff West, and Cardiff North.[9]

Notable people

  • Sir Tom Jones — Treforest, Pontypridd — singer, known to some people locally by his birth name of Tommy Woodward
  • Neil Jenkins — Church Village, near Pontypridd — Wales and British & Irish Lions rugby union player
  • Kelly Jones — Cwmaman — lead singer and lead guitarist of the rock band the Stereophonics
  • Baron Merlyn Rees (1920-2006) — Cilfynydd, near Pontypridd — served as Secretary of State for Northern Ireland (1974–1976) and Home Secretary (1976–1979)
  • Sir Geraint Evans (1922–1992) — Cilfynydd, near Pontypridd — bass-baritone opera singer



Towns that have twinning arrangements in Rhondda Cynon Taf are:

Freedom of the Borough


The following people and military units have received the Freedom of the Borough of Rhondda Cynon Taf.



Military units


See also



  1. ^ "How life has changed in Rhondda Cynon Taf: Census 2021".
  2. ^ "Population Density, 2011". Office for National Statistics. neighbourhood.statistics.gov.uk. Retrieved 3 January 2014.
  3. ^ "Tonypandy built-up area". NOMIS. Office for National Statistics. Retrieved 22 October 2022.
  4. ^ "Covid: Wales' National Eisteddfod postponed until 2022". 26 January 2021 – via www.bbc.co.uk.
  5. ^ "The five other unexplained deaths linked to Pembrokeshire Murders killer John Cooper that have never been proved". WalesOnline. 16 January 2021. Retrieved 20 August 2022.
  6. ^ "Brofiscin Quarry: What's happened so far?". Environment Agency. Retrieved 11 December 2010.
  7. ^ Hughes, John; Thomas, Pat (May 2007). "Burying The Truth". The Ecologist. 37 (4): 33–63.
  8. ^ a b Levitt, Tom (14 July 2015). "Monsanto, BP and Veolia agree to pay for cleanup of contaminated Welsh site". The Guardian. Retrieved 19 July 2016.
  9. ^ "2023 Parliamentary Review - Revised Proposals | Boundary Commission for Wales". Boundary Commission for Wales. Retrieved 20 June 2023.
  10. ^ "Tenor granted freedom of borough". WalesOnline. 31 January 2008.
  11. ^ Best, Jessica (10 April 2013). "Award-winning columnist Elaine Morgan given the freedom of Rhondda Cynon Taf". WalesOnline.
  12. ^ McCarthy, James (8 October 2016). "Royal Welsh soldiers marched through Pontypridd watched by thousands".
  13. ^ "Welsh Guards hold freedom parade". BBC News. 15 May 2013.
  14. ^ "Freedom Of County Borough". www.rctcbc.gov.uk.

51°39′00″N 3°26′24″W / 51.65000°N 3.44000°W / 51.65000; -3.44000