Aberaman, Abercanaid, Abercwmboi, Abercynon, Aberdare / Aberdâr, Aberfan, Abernant, Bedlinog, Birchgrove, Blaenllechau, Britannia, Bryntirion, Buarth Capel, Cae-draw, Caegarw, Carnetown, Cefnpennar, Cilfynydd, Coed y Cwm, Coed-Pen-Maen, Craig Berthlwyd, Cwmaman, Cwmbâch, Cwmfelin, Cwmpennar, Darranlas, Dinas, Edwardsville, Ferndale, Ffos-y-frân, Gadlys, Glebeland, Glenboi, Glyncoch, Glynfach, Godreaman, Goitre Coed, Heolgerrig, Hopkinstown, Llancaiach, Llanfabon, Llanwonno, Llwyncelyn, Llwynypia, Maerdy, Melin Caiach, Merthyr Tydfil / Merthyr Tudful, Merthyr Vale / Ynysowen, Mount Pleasant, Mountain Ash / Aberpennar, Mountain Hare, Mynachdy, Nelson, Pantygraig Wen, Penrhiwceiber, Penrhys, Pentrebach, Pentwyn Berthl?yd, Penygraigwen, Penyrheol, Perthcelyn, Pont-Siôn-Norton, Pontcynon, Pontygwaith, Porth, Quaker's Yard, Rhyd-y-car, Robertstown, Stanleytown, Taff Merthyr Garden Village, Tai'r-heol, Thomas Town, Tonypandy, Trallwn, Trealaw, Trecynon, Trehafod, Treharris, Trelewis, Troedrhiw-Trwyn, Troedyrhiw, Twynyrodyn, Tylorstown, Tyntetown, Upper Abercanaid, Wattstown, Ynys-fach, Ynysboeth, Ynyshir, Ynysybwl, Ysgubor Newydd, Ystrad