Before (end of 1975)
Not known.
After (end of 1976)
Not known.
Ward results
Blaengwrach1 seat
| D. Thomas | Labour | 0 ✓ |
Briton Ferry4 seats · turnout 31.8%
| S. Tudor | Plaid Cymru - The Party of Wales | 1,489 |
| W. Brown | Labour | 1,403 |
| M. Moule | Labour | 1,333 |
| A. Powell | Labour | 1,307 |
| W. Davies | Labour | 1,286 |
Bryncoch2 seats · turnout 56.6%
| I. Hobbs | Labour | 1,210 |
| T. Matthews | Independent | 1,032 |
| D. John | Plaid Cymru - The Party of Wales | 990 |
| G. Davies | Labour | 968 |
| P. Williams | Plaid Cymru - The Party of Wales | 597 |
Cadoxton1 seat · turnout 66.7%
| A. Roberts | RATE | 466 |
| D. Davies | Labour | 276 |
Cilfrew1 seat · turnout 69.8%
| M. Morris | Labour | 356 ✓ |
| T. Rees | Independent | 177 |
| E. Thresher | Independent | 149 |
| B. Dawe | Plaid Cymru - The Party of Wales | 101 |
Clyne2 seats · turnout 61.6%
| R. Rees | Independent | 1,444 |
| M. Jeffreys | Labour | 963 |
| R. Langdon | Labour | 727 |
| M. Dilks | Independent | 333 |
Coedffranc4 seats · turnout 50.1%
| Mike Thomas | Independent | 2,599 |
| R. Bennett | Labour | 1,768 |
| L. Ball | Labour | 1,761 |
| R. Day | Labour | 1,436 |
| D. Florence | Labour | 1,347 |
| G. Phillips | Plaid Cymru - The Party of Wales | 1,131 |
| M. Lewis | Plaid Cymru - The Party of Wales | 1,053 |
| M. Griffiths | Plaid Cymru - The Party of Wales | 907 |
| H. Hames | Plaid Cymru - The Party of Wales | 843 |
Glynneath2 seats · turnout 45.8%
| L. Adams | Independent | 1,520 |
| T. Evans | Plaid Cymru - The Party of Wales | 602 |
| B. Thomas | Labour | 588 |
| M. Williams | Labour | 406 |
| M. Jones | Independent | 317 |
Neath Abbey1 seat · turnout 58.6%
| M. O'Connor | Labour | 668 |
| H. Thomas | Plaid Cymru - The Party of Wales | 561 |
Neath South6 seats · turnout 33.2%
| R. Gallanders | RATE | 1,571 |
| D. Rees | RATE | 1,452 |
| W. Cotton | Labour | 1,440 |
| E. Emanuel | Labour | 1,408 |
| V. Dickinson | RATE | 1,404 |
| D. Walters | RATE | 1,382 |
| G. Eaton | Labour | 1,367 |
| G. John | Labour | 1,343 |
| W. Hores | Labour | 1,245 |
| R. Sly | Plaid Cymru - The Party of Wales | 1,212 |
| B. Maccathall | Plaid Cymru - The Party of Wales | 1,116 |
| G. Rees | Labour | 1,006 |
| W. Pritchard | COMM | 586 |
North4 seats · turnout 45.9%
| L. Davies | RATE | 1,826 |
| J. Leitz | RATE | 1,754 |
| C. Bennett | RATE | 1,702 |
| G. Hemming | RATE | 1,399 |
| Warman J. | Labour | 1,375 |
| I. Curtis | Plaid Cymru - The Party of Wales | 1,144 |
| P. Phillips | Labour | 1,122 |
| R. Teale | Labour | 1,088 |
| D. Jones | Labour | 996 |
Onllwyn1 seat · turnout 74.7%
| M. Lewis | Labour | 406 |
| N. Griffiths | Plaid Cymru - The Party of Wales | 334 |
Seven Sisters1 seat · turnout 71.5%
| M. Davies | Plaid Cymru - The Party of Wales | 877 |
| H. Morgan | Labour | 492 |
Tonna1 seat · turnout 59.8%
| Davies-Andrews | Labour | 540 |
| K. Hopkins | RATE | 467 |
| A. Dawe | Plaid Cymru - The Party of Wales | 118 |
