Before (end of 1980) (80 seats, Elections Centre)
Conservative 64 · Labour 15 · Other 1 · Plaid Cymru - The Party of Wales 0 · The Liberal Party 0
After (end of 1981) (80 seats, Elections Centre)
Labour 41 · Conservative 35 · SDP-Liberal Alliance 3 · Plaid Cymru - The Party of Wales 1 · Other 0
Ward results
Adamsdown2 seats
| D. Evans | Labour | 1,251 ✓ |
| K. Hutchings | Labour | 1,234 ✓ |
| W. Lewis | Conservative | 344 |
| T. Hobbs | Conservative | 314 |
Barry Barruc1 seat
| E. Jones | Conservative | 1,380 |
| C. Short | Labour | 889 |
Barry Buttrills1 seat
| R. Lane | Labour | 976 |
| E. Evans | Conservative | 626 |
Barry Cadoc1 seat
| F. Cook | Labour | 1,048 |
| D. Whitchurch | Conservative | 850 |
| B. Greaves | Plaid Cymru - The Party of Wales | 80 |
Barry Castleland1 seat
| M. Sharp | Labour | 1,012 ✓ |
| K. Jones | Conservative | 431 |
Barry Dyfan2 seats
| B. Murray | Labour | 2,037 ✓ |
| C. Watkins | Labour | 1,984 ✓ |
| J. Donovan | Conservative | 1,068 |
| R. Gibbons | Conservative | 1,041 |
Barry Illtyd1 seat
| Tabern J. | Labour | 1,088 ✓ |
| G. Mackillican | Conservative | 1,074 |
Canton2 seats
| M. Trickway | Labour | 1,333 ✓ |
| B. Brown | Conservative | 1,328 ✓ |
| T. Crews | Labour | 1,236 |
| T. Tyrell | Conservative | 1,113 |
| A. Williams | The Liberal Party | 299 |
| P. Deogan | The Liberal Party | 274 |
Cardiff Rural No.11 seat
| B. Clarke | Conservative | 1,441 |
| B. Edwards | Labour | 842 |
| C. Rush | Conservative | 0 ✓ |
| W Matthews | LIB | 2,110 |
| G Snell | LIB | 2,107 |
| D Rees | LIB | 1,956 |
| Peter Perkins | Labour | 1,569 |
| D. Richards | Labour | 1,527 |
| Tom Sweeney | Labour | 1,243 |
| A Thompson | Labour | 1,186 |
| D Francies | Labour | 1,156 |
| K. Bowles | Conservative | 1,133 ✓ |
| K Bowles | Conservative | 1,133 |
| E Chichester | Conservative | 904 |
| M Adams | Conservative | 844 |
| B. Jones | Conservative | 804 |
| A German | Labour | 787 |
| A. German | Labour | 787 |
| C. Champion | Labour | 780 |
| M Moorcroft | Conservative | 747 |
| H Rhoden | Labour | 701 |
| F Arnold | Conservative | 694 |
| R Hill | LIB | 570 |
| A Miles | LIB | 500 |
| P Lowes | Conservative | 446 |
| C Thomas | Conservative | 434 |
| T. O'Neill | Plaid Cymru - The Party of Wales | 200 |
| D Tilley | Plaid Cymru - The Party of Wales | 173 |
| J Williams | LIB | 152 |
| R Clancy | Plaid Cymru - The Party of Wales | 150 |
| J Colley | LIB | 142 |
| Kirstine Elizabeth Pearson | Green | 128 |
| Cardiff | South | 0 |
Cardiff South2 seats
| P. Perkins | Labour | 1,569 ✓ |
| D. Richards | Labour | 1,527 ✓ |
| M. Moorcroft | Conservative | 747 |
| F. Arnold | Conservative | 694 |
| J. Williams | The Liberal Party | 152 |
| J. Colley | The Liberal Party | 142 |
Cathays3 seats
| W. Matthews | The Liberal Party | 2,110 ✓ |
| G. Snell | The Liberal Party | 2,107 ✓ |
| D. Rees | The Liberal Party | 1,956 ✓ |
| T. Sweeney | Labour | 1,243 |
| A. Thompson | Labour | 1,186 |
| D. Francies | Labour | 1,156 |
| E. Chichester | Conservative | 904 |
| M. Adams | Conservative | 844 |
| B. Jones | Conservative | 804 |
| T. O'Neill | Plaid Cymru - The Party of Wales | 200 |
| D. Tilley | Plaid Cymru - The Party of Wales | 173 |
| R. Clancy | Plaid Cymru - The Party of Wales | 150 |
Central2 seats
| C. Champion | Labour | 780 ✓ |
| H. Rhoden | Labour | 701 ✓ |
| R. Hill | The Liberal Party | 570 |
| A. Miles | The Liberal Party | 500 |
| P. Lowes | Conservative | 446 |
| C. Thomas | Conservative | 434 |
| K. Pearson | Green | 128 |
Cowbridge No.11 seat
| B Morgan | Labour | 2,800 |
| H Gough | Labour | 2,607 |
| B. Phillips | Labour | 2,480 |
| E Currie-Jones | Labour | 2,478 |
| J. Davies | Labour | 2,058 |
| A Hearne | Labour | 1,995 |
| A. Huish | Labour | 1,925 |
| R. Thomas | Conservative | 1,787 ✓ |
| R Thomas | Conservative | 1,787 |
| D Lydiard | Labour | 1,679 |
| B. Jones | Conservative | 1,635 |
| Peter Wallace Jones | Conservative | 1,632 |
| G Gallagher | Labour | 1,626 |
| J George | Conservative | 1,625 |
| C Franks | Plaid Cymru - The Party of Wales | 1,537 |
| Alan Beavan | Conservative | 1,511 |
| T Merridew | Conservative | 1,393 |
| L Quinn | Conservative | 1,384 |
| C Saunders | Conservative | 1,371 |
| V Kempton | Conservative | 1,358 |
| Gwyneth Rees | Labour | 1,180 |
| A Roper | Plaid Cymru - The Party of Wales | 1,030 |
| G Derrick | Conservative | 1,023 |
| R Benson | Conservative | 1,016 |
| J Rushrod | Conservative | 1,010 |
| N Leworthy | Conservative | 1,007 |
| S Jose | Conservative | 997 |
| D Hardie | Independent | 938 |
| M Pember | Labour | 904 |
| T Davies | Labour | 788 |
| G. Jones | Green | 720 |
| C Thomson | Independent | 719 |
| J. Jones | Labour | 698 |
| J Jones | Labour | 698 |
| M Weston | LIB | 428 |
| M. Weston | The Liberal Party | 428 |
| L. Evans | Plaid Cymru - The Party of Wales | 401 |
| J. Baker | LIB | 392 |
| S Bakes | LIB | 370 |
| I Taher | LIB | 174 |
| P Verma | LIB | 129 |
| T Roberts | Independent | 128 |
| Dinas | Powys | 0 |
| Ely | vote share | 0 |
Cowbridge No.22 seats
| P. Jones | Conservative | 1,632 ✓ |
| J. George | Conservative | 1,625 ✓ |
| G. Rees | Labour | 1,180 |
| D. Hardie | Independent | 938 |
| M. Pember | Labour | 904 |
| C. Thomson | Independent | 719 |
Dinas Powys2 seats
| B. Jones | Conservative | 1,635 ✓ |
| C. Franks | Plaid Cymru - The Party of Wales | 1,537 ✓ |
| A. Beavan | Conservative | 1,511 |
| A. Roper | Plaid Cymru - The Party of Wales | 1,030 |
| T. Davies | Labour | 788 |
| J. Baker | The Liberal Party | 392 |
| S. Bakes | The Liberal Party | 370 |
| T. Roberts | Independent | 128 |
Gabalfa3 seats
| J. Davies | Labour | 2,058 ✓ |
| A. Hearne | Labour | 1,995 ✓ |
| A. Huish | Labour | 1,925 ✓ |
| T. Merridew | Conservative | 1,393 |
| C. Saunders | Conservative | 1,371 |
| V. Kempton | Conservative | 1,358 |
| L. Evans | Plaid Cymru - The Party of Wales | 401 |
Grangetown2 seats
| D. Lydiard | Labour | 1,679 ✓ |
| G. Gallagher | Labour | 1,626 ✓ |
| L. Quinn | Conservative | 1,384 |
| N. Leworthy | Conservative | 1,007 |
| I. Taher | The Liberal Party | 174 |
| P. Verma | The Liberal Party | 129 |
Lisvane Llanedeyrn & St.1 seat
| T Cronin | Conservative | 3,351 |
| F Court | Conservative | 3,345 |
| B. Rees | Conservative | 3,335 |
| G. Tatham | Conservative | 3,286 |
| J Hermer | Conservative | 2,258 |
| J. Donovan | Conservative | 2,230 |
| B. Jones | Conservative | 2,157 |
| C Jones | Labour | 1,894 |
| R Hughes | Labour | 1,889 |
| D Elwell | Labour | 1,854 |
| E. Williams | Labour | 1,776 |
| S James | Labour | 1,319 |
| J Lysaght | Conservative | 1,273 |
| M Anthoniw | Labour | 1,198 |
| G Rhoden | Labour | 1,010 |
| D Jenkins | Labour | 998 |
| W Laing | Labour | 948 |
| M. Evans | Green | 887 |
| A Davies | Conservative | 750 |
| S Caeser | Labour | 680 |
| M Wainyoki | Conservative | 632 |
| G. Jones | Plaid Cymru - The Party of Wales | 508 |
| J Edwards | Plaid Cymru - The Party of Wales | 488 |
| D Balch | Plaid Cymru - The Party of Wales | 457 |
| R Perriam | Plaid Cymru - The Party of Wales | 125 |
| Llanishen | vote share | 0 |
Llandaff3 seats
| J. Hermer | Conservative | 2,258 ✓ |
| J. Donovan | Conservative | 2,230 ✓ |
| B. Jones | Conservative | 2,157 ✓ |
| G. Rhoden | Labour | 1,010 |
| D. Jenkins | Labour | 998 |
| W. Laing | Labour | 948 |
| G. Jones | Plaid Cymru - The Party of Wales | 508 |
| J. Edwards | Plaid Cymru - The Party of Wales | 488 |
Llantwit Major Court2 seats
| S. James | Labour | 1,319 ✓ |
| M. Anthoniw | Labour | 1,198 ✓ |
| A. Davies | Conservative | 750 |
| M. Wainyoki | Conservative | 632 |
| R. Perriam | Plaid Cymru - The Party of Wales | 125 |
Penarth North/Central1 seat
| C. Peterson | Conservative | 5,136 |
| P. Meyer | Conservative | 5,097 |
| A Thomas | Conservative | 5,047 |
| S Terlezki | Conservative | 5,040 |
| M. Wigmore | Conservative | 4,924 |
| V. Jones | Labour | 4,273 |
| W. Bowen | Labour | 4,236 |
| F Yeomans | Labour | 4,077 |
| R Moris | Labour | 4,026 |
| A. Pithouse | Labour | 4,021 |
| D. Hill | LIB | 3,722 |
| P Bramall | LIB | 3,381 |
| I Foster | LIB | 3,372 |
| C Mitchell | LIB | 3,277 |
| R Davies | Conservative | 2,929 |
| G Sagoo | LIB | 2,918 |
| H Purnell | Conservative | 2,793 |
| G. Neale | Conservative | 2,770 |
| D Longden | Labour | 2,743 |
| R. Evans | Conservative | 2,733 |
| W Bain | Conservative | 2,727 |
| J. Lewis | Labour | 2,722 |
| W. Richards | Conservative | 2,721 |
| C. Roderick | Labour | 2,609 |
| G Brooks | Labour | 2,543 |
| I Hermer | Conservative | 2,193 |
| C Evans | Labour | 2,186 |
| Frank McCarthy | Conservative | 2,167 |
| R Richards | Conservative | 2,156 |
| P Malekin | Labour | 2,065 |
| M. Phelps | Labour | 2,041 |
| S Brown | Conservative | 2,019 |
| P Williams | Labour | 2,010 |
| D. Richards | Labour | 1,998 |
| I Davies | Conservative | 1,924 |
| N. Smith | Conservative | 1,910 |
| Calum Thomas Monteath Nicholson | Conservative | 1,901 |
| M Battistea | Conservative | 1,896 |
| G. Houlston | Labour | 1,811 |
| L Brooks | Labour | 1,734 |
| W. Kitson | Labour | 1,654 |
| S Crossley | LIB | 1,651 |
| C Fennessy | Labour | 1,607 |
| B. Hall | Conservative | 1,595 |
| B Bowler | Labour | 1,591 |
| H Phillips | Conservative | 1,559 |
| T Goddard | Conservative | 1,525 |
| S. Thomas | Conservative | 1,499 |
| E Clarke | Conservative | 1,498 |
| P. Lloyd | Conservative | 1,495 |
| M Hallinan | Conservative | 1,494 |
| A Parsons | Labour | 1,486 |
| E. Tincknell | Labour | 1,457 |
| J. Hutt | Labour | 1,429 |
| E Lloyd | Conservative | 1,429 |
| K Nelson | Labour | 1,415 |
| D Campbell | Labour | 1,363 |
| O. Watkin | Conservative | 1,253 |
| F Dobbs | Labour | 1,188 |
| S. James | Conservative | 1,149 |
| P Jarman | LIB | 1,049 |
| C Richards | Labour | 997 |
| R Souza | Conservative | 980 |
| Tanya Tucker | Labour | 976 |
| N Davies | Labour | 972 |
| P Maccormack | Labour | 970 |
| J Cocks | Labour | 967 |
| F Cooper | Conservative | 941 |
| A Davies | Labour | 901 |
| P Davies | LIB | 898 |
| J Cuff | LIB | 888 |
| A Rannasut | Labour | 877 |
| P. Gray | Labour | 843 ✓ |
| P. Gray | Labour | 843 |
| F Crichester | Conservative | 809 |
| M Davies | LIB | 792 |
| A Hopkins | Conservative | 754 |
| Roger Keith Jones | Conservative | 722 |
| E. Humphreys | LIB | 680 |
| A. Morgan | Plaid Cymru - The Party of Wales | 652 |
| P. Church | Conservative | 566 |
| Pauline Elizabeth Church | Conservative | 566 |
| I Williams | Plaid Cymru - The Party of Wales | 461 |
| I Boyce | Labour | 433 |
| L. Barrett | Labour | 418 |
| A Jones | LIB | 397 |
| P Richards | Plaid Cymru - The Party of Wales | 368 |
| M Jones | LIB | 350 |
| P Bridger | Green | 338 |
| J Janes | LIB | 317 |
| J. Janes | The Liberal Party | 317 |
| O Thomas | Plaid Cymru - The Party of Wales | 291 |
| A Packer | Plaid Cymru - The Party of Wales | 279 |
| B. Smith | Plaid Cymru - The Party of Wales | 249 |
| D Smith | Plaid Cymru - The Party of Wales | 224 |
| G Rees | Plaid Cymru - The Party of Wales | 181 |
| R Macmillan | COMM | 97 |
| Penarth | West | 0 |
Penarth South Ward2 seats
| T. Goddard | Conservative | 1,525 ✓ |
| P. Lloyd | Conservative | 1,495 ✓ |
| I. Boyce | Labour | 433 |
| L. Barrett | Labour | 418 |
| A. Jones | The Liberal Party | 397 |
| M. Jones | The Liberal Party | 350 |
Penarth West2 seats
| S. Thomas | Conservative | 1,499 ✓ |
| E. Tincknell | Labour | 1,457 ✓ |
| E. Lloyd | Conservative | 1,429 |
| K. Nelson | Labour | 1,415 |
| E. Humphreys | The Liberal Party | 680 |
| A. Packer | Plaid Cymru - The Party of Wales | 279 |
Penylan5 seats
| C. Peterson | Conservative | 5,136 ✓ |
| P. Meyer | Conservative | 5,097 ✓ |
| A. Thomas | Conservative | 5,047 ✓ |
| S. Terlezki | Conservative | 5,040 ✓ |
| M. Wigmore | Conservative | 4,924 ✓ |
| D. Hill | The Liberal Party | 3,722 |
| P. Bramall | The Liberal Party | 3,381 |
| I. Foster | The Liberal Party | 3,372 |
| C. Mitchell | The Liberal Party | 3,277 |
| G. Sagoo | The Liberal Party | 2,918 |
| C. Evans | Labour | 2,186 |
| P. Malekin | Labour | 2,065 |
| M. Phelps | Labour | 2,041 |
| P. Williams | Labour | 2,010 |
| D. Richards | Labour | 1,998 |
| A. Morgan | Plaid Cymru - The Party of Wales | 652 |
Plas Mawr4 seats
| D. Longden | Labour | 2,743 ✓ |
| J. Lewis | Labour | 2,722 ✓ |
| C. Roderick | Labour | 2,609 ✓ |
| G. Brooks | Labour | 2,543 ✓ |
| B. Hall | Conservative | 1,595 |
| H. Phillips | Conservative | 1,559 |
| E. Clarke | Conservative | 1,498 |
| M. Hallinan | Conservative | 1,494 |
Plasnewydd2 seats
| O. Watkin | Conservative | 1,253 ✓ |
| F. Dobbs | Labour | 1,188 ✓ |
| S. James | Conservative | 1,149 |
| P. Jarman | The Liberal Party | 1,049 |
| C. Richards | Labour | 997 |
| P. Davies | The Liberal Party | 898 |
| O. Thomas | Plaid Cymru - The Party of Wales | 291 |
| G. Rees | Plaid Cymru - The Party of Wales | 181 |
| R. Macmillan | Other | 97 |
Rhiwbina3 seats
| R. Davies | Conservative | 2,929 ✓ |
| G. Neale | Conservative | 2,770 ✓ |
| W. Bain | Conservative | 2,727 ✓ |
| S. Crossley | The Liberal Party | 1,651 |
| P. Maccormack | Labour | 970 |
| J. Cocks | Labour | 967 |
| A. Davies | Labour | 901 |
| P. Richards | Plaid Cymru - The Party of Wales | 368 |
Riverside2 seats
| J. Hutt | Labour | 1,429 ✓ |
| D. Campbell | Labour | 1,363 ✓ |
| R. Souza | Conservative | 980 |
| F. Cooper | Conservative | 941 |
| P. Bridger | Green | 338 |
Roath3 seats
| I. Hermer | Conservative | 2,193 ✓ |
| F. McCarthy | Conservative | 2,167 ✓ |
| R. Richards | Conservative | 2,156 ✓ |
| T. Tucker | Labour | 976 |
| N. Davies | Labour | 972 |
| A. Rannasut | Labour | 877 |
| M. Davies | The Liberal Party | 792 |
| B. Smith | Plaid Cymru - The Party of Wales | 249 |
| D. Smith | Plaid Cymru - The Party of Wales | 224 |
Rumney5 seats
| V. Jones | Labour | 4,273 ✓ |
| W. Bowen | Labour | 4,236 ✓ |
| F. Yeomans | Labour | 4,077 ✓ |
| R. Moris | Labour | 4,026 ✓ |
| A. Pithouse | Labour | 4,021 ✓ |
| S. Brown | Conservative | 2,019 |
| I. Davies | Conservative | 1,924 |
| N. Smith | Conservative | 1,910 |
| C. Nicholson | Conservative | 1,901 |
| M. Battistea | Conservative | 1,896 |
| J. Cuff | The Liberal Party | 888 |
Splott3 seats
| G. Houlston | Labour | 1,811 ✓ |
| L. Brooks | Labour | 1,734 ✓ |
| W. Kitson | Labour | 1,654 ✓ |
| F. Crichester | Conservative | 809 |
| A. Hopkins | Conservative | 754 |
| R. Jones | Conservative | 722 |
Whitchurch3 seats
| H. Purnell | Conservative | 2,793 ✓ |
| R. Evans | Conservative | 2,733 ✓ |
| W. Richards | Conservative | 2,721 ✓ |
| C. Fennessy | Labour | 1,607 |
| B. Bowler | Labour | 1,591 |
| A. Parsons | Labour | 1,486 |
| I. Williams | Plaid Cymru - The Party of Wales | 461 |
