Before (end of 1972)
Not known.
After (end of 1973) (70 seats, Elections Centre)
Labour 51 · Conservative 9 · Other 6 · Plaid Cymru - The Party of Wales 2 · The Liberal Party 2
Ward results
Aberavon East & West3 seats · turnout 38.7%
| J. Warren | Labour | 3,374 |
| C. Crowley | Labour | 2,906 |
| C. Lewis | Labour | 2,889 |
| L. Stanton | RES | 2,371 |
| J. Roberts | RES | 2,280 |
Aberavon North1 seat · turnout 53.5%
| D. Heatley | Labour | 1,829 |
| T. Raikes | RATE | 1,584 |
Aberavon South1 seat · turnout 52.8%
| W. Hopkin | Labour | 1,319 |
| H. Cuss | RATE | 733 |
Cwmafan1 seat · turnout 67.9%
| T. John | Prog L | 1,548 |
| Lesley Richards | Labour | 1,026 |
Fforest Fach2 seats · turnout 37.6%
| V. Alexander | Labour | 2,471 |
| D. Bevan | Labour | 2,297 |
| D. Mercer | Conservative | 1,249 |
| R. Hinds | Conservative | 1,185 |
Ffynone2 seats · turnout 6.5%
| P. McCallum | Labour | 889 |
Glyncorrwg2 seats
| D. Daniels | Labour | 0 ✓ |
| G. Davies | Labour | 0 ✓ |
Gower No.11 seat
| B. Keal | LIB | 0 ✓ |
Gower No.21 seat · turnout 60.5%
| F. Lord | Labour | 1,644 |
| D. Thomas | RATE | 1,121 |
Gower No.31 seat · turnout 47.4%
| G. Beynon | LIB | 1,682 |
| V. Watters | Labour | 642 |
Llansamlet2 seats
| T. Lloyd-Jones | Labour | 3,009 |
| L. Penhaligan | Labour | 2,623 |
| J. Bell | Plaid Cymru - The Party of Wales | 1,232 |
| E. Bevan | COMM | 366 |
Llwchwr No.11 seat · turnout 62.3%
| W. Jones | Labour | 1,597 |
| C. Morgan | Independent | 1,184 |
Llwchwr No.22 seats · turnout 48.0%
| D. Davies | Labour | 2,782 |
| J. Jones | Labour | 2,270 |
| C. Thomas | LIB | 1,702 |
| M. Thomas | Ind Lab | 1,574 |
Llwchwr No.32 seats · turnout 51.3%
| J. Thomas | Labour | 2,495 |
| D. Turner | Labour | 2,222 |
| H. Griffiths | LIB | 1,514 |
| N. Williams | Conservative | 1,457 |
Margam Central1 seat
| L. Heycock | Labour | 0 ✓ |
Margam North1 seat · turnout 60.0%
| T. Mitchell | Labour | 781 |
| G. Penhale | RATE | 682 |
Margam West1 seat · turnout 59.2%
| E. Miles | RATE | 1,482 |
| D. Phillips | Labour | 1,011 |
Morriston2 seats · turnout 33.3%
| P. Evans | Labour | 1,996 |
| S. Havard | Labour | 1,977 |
| C. Hadley | RATE | 1,810 |
| J. Howes | RATE | 1,295 |
Mumbles2 seats · turnout 36.9%
| A. Chilcott | Conservative | 3,180 |
| M. Jones | Conservative | 3,072 |
| L. Neale | Labour | 1,757 |
Neath No.14 seats · turnout 36.3%
| W. Phillips | Labour | 4,159 |
| F. Kingdom | Labour | 4,137 |
| D. David | Labour | 4,013 |
| S. Burton | Labour | 3,891 |
| G. Jenkins | COMM | 1,683 |
| W. Ferriss | COMM | 1,378 |
| W. Pritchard | COMM | 1,019 |
| E. Strangeward | COMM | 689 |
Neath No.22 seats · turnout 51.1%
| F. Evans | Labour | 2,669 |
| J. Jones | Labour | 2,261 |
| J. Leitz | Independent | 1,541 |
| E. Hemming | Independent | 1,533 |
Neath Rural No.2 seats
| R. Jones | Labour | 2,905 ✓ |
| M. Thomas | Independent | 2,534 ✓ |
| N. Thomas | Labour | 2,385 |
| T. Thomas | Labour | 2,131 |
| H. Evans | Plaid Cymru - The Party of Wales | 1,919 |
| O. Roberts | Plaid Cymru - The Party of Wales | 1,629 |
| W. Jones | Labour | 1,575 |
| C. Jones | Labour | 1,499 |
| T. Rees | Independent | 1,346 |
| R. Davies | Labour | 1,300 |
| L. Adams | Independent | 1,191 |
| G. Morgan | COMM | 734 |
| T. Evans | Plaid Cymru - The Party of Wales | 346 |
Neath Rural No. 51 seat · turnout 63.2%
| D. Hull | Labour | 1,470 |
| R. Rees | Independent | 1,277 |
| G. Dawe | Plaid Cymru - The Party of Wales | 273 |
Penderry3 seats · turnout 24.0%
| J. Allison | Labour | 3,152 |
| T. Jones | Labour | 3,090 |
| G. Thomas | Labour | 3,032 |
| D. Reynon | Plaid Cymru - The Party of Wales | 972 |
| W. Jones | COMM | 584 |
| B. Lewis | COMM | 424 |
| H. Barrow | COMM | 280 |
Pontardawe No.11 seat · turnout 56.1%
| J. Williams | Independent | 1,151 |
| G. Williams | Labour | 703 |
Pontardawe No.22 seats · turnout 57.9%
| J. Maunder | Labour | 2,694 |
| M. Rees | Independent | 1,948 |
| C. Jones | Labour | 1,836 |
| M. Mulcahy | Plaid Cymru - The Party of Wales | 1,507 |
| R. Jones | Independent | 1,037 |
Pontardawe No.33 seats · turnout 46.5%
| G. Lake | Labour | 4,702 |
| W. Rees | Labour | 4,615 |
| B. Richards | Labour | 4,464 |
| R. Davies | Plaid Cymru - The Party of Wales | 3,305 |
Sketty3 seats · turnout 34.9%
| M. Vaughan | Conservative | 5,270 |
| S. Perry | Conservative | 4,819 |
| R. Massey-Shaw | Conservative | 4,477 |
| J. Dalton | Labour | 2,372 |
St.Helens2 seats · turnout 38.1%
| C. Dilley | Conservative | 1,742 |
| M. Hinds | Conservative | 1,545 |
| D. Davies | Labour | 1,067 |
Townhill2 seats · turnout 30.4%
| T. Wignall | Labour | 1,848 |
| T. Evans | Labour | 1,748 |
| C. McPherson | Conservative | 429 |
Victoria2 seats · turnout 51.5%
| D. Jenkins | Ind RA | 1,390 |
| S. Jenkins | Ind RA | 1,132 |
| A. Taylor | Labour | 1,051 |
| R. Lloyd | Labour | 852 |
| T. Morgan | Conservative | 477 |
| E. Burrington | Conservative | 329 |
