| Localité | Code postal |
|---|---|
| Aberaman, Rhondda Cynon Taf | CF44 |
| Abercwmboi, Rhondda Cynon Taf | CF44 |
| Abercynon, Rhondda Cynon Taf | CF45 |
| Aberdare, Rhondda Cynon Taf | CF44 |
| Abernant, Rhondda Cynon Taf | CF44 |
| Beddau, Rhondda Cynon Taf | CF38 |
| Blaenclydach, Rhondda Cynon Taf | CF40 |
| Blaencwm, Rhondda Cynon Taf | CF42 |
| Blaenllechau, Rhondda Cynon Taf | CF43 |
| Blaenrhondda, Rhondda Cynon Taf | CF42 |
| Bryncae, Rhondda Cynon Taf | CF72 |
| Brynna, Rhondda Cynon Taf | CF72 |
| Brynsadler, Rhondda Cynon Taf | CF72 |
| Brynteg, Rhondda Cynon Taf | CF72 |
| Cefn Pennar, Rhondda Cynon Taf | CF45 |
| Church Village, Rhondda Cynon Taf | CF38 |
| Cilfynydd, Rhondda Cynon Taf | CF37 |
| Clydach Vale, Rhondda Cynon Taf | CF40 |
| Coed Ely, Rhondda Cynon Taf | CF39 |
| Coed-Y-Cwm, Rhondda Cynon Taf | CF37 |
| Coedpenmaen, Rhondda Cynon Taf | CF37 4LU, CF37 4LW |
| Croesbychan, Rhondda Cynon Taf | CF44 |
| Cross Inn, Rhondda Cynon Taf | CF72 |
| Cwmaman, Rhondda Cynon Taf | CF44 |
| Cwmbach, Rhondda Cynon Taf | CF44 |
| Cwmdare, Rhondda Cynon Taf | CF44 |