| Name | Party | Ward | End of Term |
|---|
| DAVIES. John | Labour Party | Aberaman North | 2021 |
| DAVIES MBE. Albert.L | Labour Party | Aberaman North | 2021 |
| CARTER. Steve Laurence | Labour Party | Aberaman South | 2021 |
| STACEY. Graham | Labour Party | Aberaman South | 2021 |
| EVANS, Sheryl | Labour Party | Abercynon | 2021 |
| HOPKINS. Geraint. E | Labour Party | Abercynon | 2021 |
| DE VET. Linda. M | Labour Party | Aberdare East | 2021 |
| CALVERT. Anita | Labour Party | Aberdare East | 2021 |
| CRIMMINGS. Ann | Labour Party | Aberdare West/Llwydcoed | 2021 |
| MORGAN. Andrew | Labour Party | Aberdare West/Llwydcoed | 2021 |
| HOLMES. Glynne | Labour Party | Aberdare West/Llwydcoed | 2021 |
| TEGG. Margaret | Labour Party | Beddau | 2021 |
| ROSSER. Joy | Labour Party | Brynna | 2021 |
| POWDERHILL. Steve | Labour Party | Church Village | 2021 |
| WASLEY. Paul | Independent / Other | Cilfynydd | 2021 |
| LEYSHON. Christina | Labour Party | Cwm Clydach | 2021 |
| DAVIES. Annette | Labour Party | Cwmbach | 2021 |
| PRIVETT. Kenneth. A | Labour Party | Cymmer | 2021 |
| CASS. Joyce | Labour Party | Cymmer | 2021 |
| EVANS-FEAR. Sêra. M | Plaid Cymru - The Party of Wales | Ferndale | 2021 |
| ADAMS. Mark | Labour Party | Ferndale | 2021 |
| MORGAN. Barrie. J | Labour Party | Gilfach Goch | 2021 |
| SMITH. Robert. W | Labour Party | Glyncoch | 2021 |
| CANNON QPM. Paul | Labour Party | Graig | 2021 |
| DAVIES. Margaret. E | Labour Party | Hawthorn | 2021 |
| DAVIES. Geraint. R | Plaid Cymru - The Party of Wales | Hirwaun | 2021 |
| GRIFFITHS. Paul | Labour Party | Llanharan | 2021 |
| BATES. Teressa. A | Labour Party | Llanharry | 2021 |
| GRIFFITHS. Margaret | Labour Party | Llantrisant Town | 2021 |
| HOWE. Philip | Independent / Other | Llantwit Fardre | 2021 |
| JAMES. Joel. S | Conservative and Unionist | Llantwit Fardre | 2021 |
| JONES. Sylvia. J | Labour Party | Llwyn-y-pia | 2021 |
| FOX. Adam S | Labour Party | Maerdy | 2021 |
| WILLIS. Clayton. J | Labour Party | Mountain Ash East | 2021 |
| LEWIS. Rhys | Labour Party | Mountain Ash West | 2021 |
| ROBERTS. Aurfron | Labour Party | Mountain Ash West | 2021 |
| WATTS. John | Labour Party | Pen-y-graig | 2021 |
| WEEKS. Dennis | Labour Party | Pen-y-graig | 2021 |
| BRADWICK. Steven. A | Labour Party | Pen-y-waun | 2021 |
| WEBSTER. Emyr John | Plaid Cymru - The Party of Wales | Penrhiwceiber | 2021 |
| ELLIOTT. Jeffrey | Labour Party | Penrhiwceiber | 2021 |
| PEARCE. Irene Elizabeth | Plaid Cymru - The Party of Wales | Pentre | 2021 |
| JARMAN. Pauline | Plaid Cymru - The Party of Wales | Pentre | 2021 |
| WALKER. Lyndon | Independent / Other | Pont-y-clun | 2021 |
| FOREY. Michael | Labour Party | Pont-y-clun | 2021 |
| WILLIAMS. Doug H | Labour Party | Pontypridd Town | 2021 |
| WEAVER. Maureen | Plaid Cymru - The Party of Wales | Porth | 2021 |
| WARD. Jane. S | Labour Party | Porth | 2021 |
| REES. Sharon | Labour Party | Rhigos | 2021 |
| PICKERING. Sue | Labour Party | Rhondda | 2021 |
| LANGFORD. Lionel | Labour Party | Rhondda | 2021 |
| SMITH. Graham | Labour Party | Rhydfelen Central/Ilan | 2021 |
| BUNNAGE. Jacqui | Labour Party | Taffs Well | 2021 |
| MONTAGUE. Keiron | Labour Party | Talbot Green | 2021 |
| BACCARA. Paul | Independent / Other | Ton-teg | 2021 |
| BEVAN. Robert | Labour Party | Ton-teg | 2021 |
| HANAGAN. Eudine | Labour Party | Tonypandy | 2021 |
| WILLIAMS. Tina | Labour Party | Tonyrefail East | 2021 |
| LLOYD. Simon | Labour Party | Tonyrefail East | 2021 |
| DAVID. John | Labour Party | Tonyrefail West | 2021 |
| THOMAS. Graham Philip | Labour Party | Trallwng | 2021 |
| NORRIS. Mark. A | Labour Party | Trealaw | 2021 |
| MIDDLE. Craig. J | Labour Party | Treforest | 2021 |
| POWELL. Michael. J | Liberal Democrats | Treherbert | 2021 |
| WEBBER. Maureen | Labour Party | Treherbert | 2021 |
| WILLIAMS. Christopher. J | Labour Party | Treorchy | 2021 |
| TURNER. Roger. K | Labour Party | Treorchy | 2021 |
| REES-OWEN. Shelley | Plaid Cymru - The Party of Wales | Treorchy | 2021 |
| BONETTO. Jill | Labour Party | Tylorstown | 2021 |
| BOGGIS. Helen | Labour Party | Tylorstown | 2021 |
| STEPHENS. Barry | Labour Party | Tyn-y-nant | 2021 |
| DAVIES. Cennard | Plaid Cymru - The Party of Wales | Ynyshir | 2021 |
| MCDONALD. Robert. B | Labour Party | Ynysybwl | 2021 |
| MORGAN. Karen | Plaid Cymru - The Party of Wales | Ystrad | 2021 |
| YEO. Richard | Labour Party | Ystrad | 2021 |