Before (end of 1972)
Not known.
After (end of 1973)
Not known.
Ward results
Ferndale3 seats · turnout 50.9%
| K. Rees | Labour | 2,106 |
| G. James | Plaid Cymru - The Party of Wales | 2,084 |
| Linda Jones-Bulman | Labour | 2,061 |
| R. Morris | Labour | 2,030 |
| T. Williams | Plaid Cymru - The Party of Wales | 1,490 |
| E. Phillips | Plaid Cymru - The Party of Wales | 1,476 |
Llwynpia3 seats · turnout 43.5%
| R. Ashman | Labour | 1,938 |
| T. Jones | Labour | 1,894 |
| F. Tudball | Labour | 1,703 |
| D. Morgan | Plaid Cymru - The Party of Wales | 1,667 |
Pentre3 seats
| A. Davies | Labour | 0 ✓ |
| D Lewis | Labour | 0 ✓ |
| B. McGrath | Labour | 0 ✓ |
Penygraig3 seats · turnout 36.4%
| R. Newman | Labour | 1,432 |
| W. Jones | Labour | 1,401 |
| A. Powell | COMM | 1,337 |
| A. Leach | Labour | 1,216 |
| W. Trembath | COMM | 616 |
Porth3 seats · turnout 39.0%
| E. Garwood | Labour | 1,916 |
| R. Jayne | Labour | 1,653 |
| T. Matthews | RATE | 1,565 |
| G. Duel | Labour | 1,551 |
| F. Weston | RATE | 1,430 |
| D. Austin | RATE | 1,430 |
Trealaw3 seats · turnout 43.0%
| E. Groves | Labour | 2,072 |
| E. Hopkins | Labour | 2,055 |
| D. Murphy | Labour | 1,862 |
| P. Leyshon | Conservative | 1,625 |
Treherbert3 seats · turnout 55.6%
| E. Evas | Labour | 2,038 |
| D. Davies | Labour | 1,964 |
| G. Rees | Labour | 1,927 |
| A. True | COMM | 1,787 |
| C. True | COMM | 1,278 |
| H. Evans | COMM | 1,155 |
Treorchy3 seats · turnout 43.5%
| T. Davies | Labour | 2,421 |
| A. Boxall | Labour | 2,268 |
| W. Hughes | Labour | 2,054 |
| H. Davies | Plaid Cymru - The Party of Wales | 1,726 |
Tylerstown3 seats · turnout 44.6%
| M. Collins | Labour | 1,960 |
| D Morgan | Labour | 1,596 |
| D. Mitchell | Labour | 1,584 |
| A. Lewis | Plaid Cymru - The Party of Wales | 1,107 |
| M. Chard | RATE | 778 |
| J. Lewis | RATE | 702 |
Ynyshir3 seats · turnout 54.4%
| W. Godfrey | Labour | 1,640 |
| H. Hicks | Labour | 1,577 |
| R. Mitchell | Labour | 1,275 |
| R. Mays | RATE | 1,113 |
| A. Jones | RATE | 928 |
| W. Southcombe | RATE | 875 |
