Aberaman, Abercwmboi, Aberdare / Aberdâr, Aberfan, Abernant, Birchgrove, Blaen Clydach, Blaencwm, Blaenllechau, Blaenrhondda, Britannia, Bryntirion, Buarth Capel, Caegarw, Cefnpennar, Clydach Vale, Cwmaman, Cwmbâch, Cwmdare, Cwmparc, Cwmpennar, Cymmer, Darranlas, Dinas, Edmondstown, Evanstown, Gadlys, Gelli, Gilfach Goch, 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, Price Town, Rhondda, Robertstown, Stanleytown, Ton Pentre, Tonypandy, Trealaw, Trebanog, Trecynon, Trehafod, Treherbert, Treorchy / Treorci, Tylorstown, Tynewydd, Tyntetown, Wattstown, Williamstown, Ynysboeth, Ynyshir, Ynyswen, Ynysybwl, Ystrad