Abercanaid, Aberdare / Aberdâr, Abermorlais, Abernant, Bute Town, Cae-draw, Cae-pant-tywyll, Cefn-coed-y-cymmer, Clwydyfagwyr, Cwmbâch, Dowlais, Dowlais Top, Ffos-y-frân, Fochriw, Gadlys, Galon-Uchaf, Gellideg, Georgetown, Glebeland, Gurnos, Heolgerrig, Hirwaun, Incline Top, Llechryd, Llwydcoed, Llwyn-on Village, Merthyr Tydfil / Merthyr Tudful, Morgan Town, Morlais Castle, Mountain Hare, Nant-ddu, Pant, Pen-y-Darren, Pen-y-wern, Pentrebach, Penyard, Penyrheol, Penywaun, Pontsticill, Princetown, Rhyd-y-car, Rhymney / Rhymni, Robertstown, The Quar, Thomas Town, Tre-Gibbon, Tre-Ifor, Trecynon, Troedyrhiw, Twynyrodyn, Tydfil's well, Upper Abercanaid, Vaynor / Faenor, Williamstown, Winch Fawr, Ynys-fach, Ysgubor Newydd