Abercanaid, Abercwmboi, Aberdare / Aberdâr, Aberfan, Abermorlais, Abernant, Blaenllechau, Bryntirion, Buarth Capel, Cae-draw, Cae-pant-tywyll, Caegarw, Cefn-coed-y-cymmer, Cefnpennar, Clwydyfagwyr, Cwmaman, Cwmbâch, Cwmdare, Cwmpennar, Darranlas, Ferndale, Ffos-y-frân, Gadlys, Gelli, Gellideg, Georgetown, Glebeland, Glenboi, Godreaman, Gurnos, Heolgerrig, Hirwaun, Incline Top, Llanwonno, Llwydcoed, Llwynypia, Maerdy, Merthyr Tydfil / Merthyr Tudful, Merthyr Vale / Ynysowen, Miskin, Morgan Town, Mountain Ash / Aberpennar, Mountain Hare, Mynachdy, Pen-y-Darren, Pen-yr-englyn, Penrhiwceiber, Penrhys, Pentre, Pentrebach, Penyard, Penyrheol, Penywaun, Perthcelyn, Pontygwaith, Rhondda, Rhyd-y-car, Robertstown, Stanleytown, The Quar, Thomas Town, Ton Pentre, Tre-Gibbon, Tre-Ifor, Trecynon, Treherbert, Treorchy / Treorci, Troedyrhiw, Twynyrodyn, Tydfil's well, Tylorstown, Tyntetown, Upper Abercanaid, Wattstown, Williamstown, Winch Fawr, Ynys-fach, Ynysboeth, Ynyswen, Ysgubor Newydd, Ystrad