Aberaman, Abercwmboi, Aberdare / Aberdâr, Aberfan, Abernant, Birchgrove, Blaen Clydach, Blaenrhondda, Britannia, Bryntirion, Buarth Capel, Caegarw, Cefnpennar, Clydach Vale, Cwmaman, Cwmbâch, Cwmdare, Cwmparc, Cwmpennar, Cymmer, Darranlas, Dinas, Edmondstown, Ferndale, Gadlys, Gelli, Glenboi, Glynfach, Godreaman, Llanwonno, Llwydcoed, Llwyncelyn, Llwynypia, Maerdy, Merthyr Vale / Ynysowen, Miskin, Mount Pleasant, Mountain Ash / Aberpennar, Mynachdy, Nant-y-moel, Pen-yr-englyn, Penrhiwceiber, Penrhiwfer, Penrhys, Pentre, Penygraig, Penywaun, Perthcelyn, Pontcynon, Pontygwaith, Porth, Rhondda, Robertstown, Stanleytown, Ton Pentre, Tonypandy, Trealaw, Trebanog, Trecynon, Trehafod, Treherbert, Treorchy / Treorci, Tylorstown, Tynewydd, Tyntetown, Wattstown, Williamstown, Ynysboeth, Ynyshir, Ynyswen, Ynysybwl, Ystrad