Independent 7, Cynon Valley Party 1. Largest authority in the South Wales Valleys, named after three of the rivers at bottom of them. Ex mining area, now popular for inward investment; largest towns are Aberdare and Pontypridd. Includes Llantrisant, unfairly tagged 'the hole with the Mint' (Royal Mint).
Ynyshir has a byelection on 5 December (held by Plaid Cymru). Plaid Cymru gained Rhondda division from Labour at a byelection on 4 July.
Next local elections