Aberaman, Abercanaid, Abercwmboi, Aberdare / Aberdâr, Aberfan, Abernant, Blaen Clydach, Blaenllechau, Blaenrhondda, Bryntirion, Buarth Capel, Cae-draw, Caegarw, Cefnpennar, Clwydyfagwyr, Clydach Vale, Cwmbâch, Cwmdare, Cwmparc, Cwmpennar, Darranlas, Dinas, Ferndale, Gadlys, Gelli, Gellideg, Georgetown, Glebeland, Glenboi, Godreaman, Heolgerrig, Hirwaun, Llanwonno, Llwydcoed, Llwynypia, Maerdy, Merthyr Tydfil / Merthyr Tudful, Merthyr Vale / Ynysowen, Miskin, Mount Pleasant, Mountain Ash / Aberpennar, Mynachdy, Pen-yr-englyn, Penrhiwceiber, Penrhys, Pentre, Pentrebach, Penygraig, Penywaun, Perthcelyn, Pontygwaith, Rhondda, Rhyd-y-car, Robertstown, Stanleytown, Thomas Town, Ton Pentre, Tonypandy, Tre-Gibbon, Tre-Ifor, Trealaw, Trecynon, Treherbert, Treorchy / Treorci, Troedyrhiw, Twynyrodyn, Tylorstown, Tynewydd, Tyntetown, Upper Abercanaid, Wattstown, Winch Fawr, Ynys-fach, Ynysboeth, Ynyshir, Ynyswen, Ynysybwl, Ysgubor Newydd, Ystrad