Before (end of 1978) (75 seats, Elections Centre)
Conservative 44 · Labour 29 · Other 2 · Plaid Cymru - The Party of Wales 0 · The Liberal Party 0
After (end of 1979) (75 seats, Elections Centre)
Labour 41 · Conservative 34 · Other 0 · The Liberal Party 0 · Plaid Cymru - The Party of Wales 0
Ward results
Adamsdown3 seats · turnout 60.9%
| D. Evans | Labour | 2,440 |
| J. Jones | Labour | 2,286 |
| D. Ford | Labour | 2,229 |
| B. Jones | Conservative | 1,129 |
| L. Quinn | Conservative | 916 |
| D. Norman | Conservative | 915 |
Canton3 seats · turnout 58.7%
| A. Brown | Conservative | 2,378 |
| J. Donovan | Labour | 2,292 |
| L. Davis | Labour | 2,007 |
| T. Tyrrell | Conservative | 1,984 |
| D. Davey | Conservative | 1,888 |
| T. Downey | Labour | 1,861 |
Cathays3 seats · turnout 72.2%
| D. Allison | Labour | 3,185 ✓ |
| J. Edwards | Labour | 2,964 ✓ |
| J. Drysdale | Labour | 2,928 ✓ |
| M. Buckley | Conservative | 2,511 |
| F. Moorcraft | Conservative | 2,374 |
| P. Reynolds | Conservative | 2,363 |
| G. Snell | LIB | 711 |
| D. Rees | LIB | 653 |
| J. Ball | LIB | 629 |
| T. O'Neill | Plaid Cymru - The Party of Wales | 364 |
| B. George | Plaid Cymru - The Party of Wales | 318 |
| G. Tilley | Plaid Cymru - The Party of Wales | 308 |
Central3 seats · turnout 58.9%
| W. Herbert | Labour | 1,683 ✓ |
| M. Flynn | Labour | 1,631 ✓ |
| C. Beach | Labour | 1,606 ✓ |
| D. Marles | Conservative | 1,231 |
| P. Lowes | Conservative | 1,215 |
| J. Miles | Conservative | 1,180 |
| S. Jones | LIB | 338 |
| R. Griffiths | Plaid Cymru - The Party of Wales | 247 |
| G. Sagoo | LIB | 237 |
| P. Riley | Plaid Cymru - The Party of Wales | 205 |
| D. Hopkins | Plaid Cymru - The Party of Wales | 193 |
| M. Ball | LIB | 37 |
Ely6 seats
| W Carling | Labour | 6,230 ✓ |
| A Buttle | Labour | 5,855 ✓ |
| D Seligman | Labour | 5,664 ✓ |
| Carol Gale | Labour | 5,356 ✓ |
| Nicola Jenkins | Labour | 5,143 ✓ |
| V Sloman | Labour | 5,025 ✓ |
| R Benson | Conservative | 2,651 |
| J Bushrod | Conservative | 2,532 |
| W Roberts | Conservative | 2,469 |
| P Fitzpatrick | Conservative | 2,456 |
| S Downes | Conservative | 2,424 |
| M Warren | Conservative | 2,392 |
Gabalfa3 seats · turnout 71.3%
| M. Parry | Labour | 4,157 |
| P Owen | Labour | 3,974 |
| E. Matthewson | Labour | 3,597 |
| T. Merridew | Conservative | 3,000 |
| C. Saunders | Conservative | 2,831 |
| V Kempton | Conservative | 2,770 |
| L. Evans | Plaid Cymru - The Party of Wales | 386 |
| B. Williams | Plaid Cymru - The Party of Wales | 271 |
| C. Schoen | Plaid Cymru - The Party of Wales | 213 |
Grangetown3 seats · turnout 66.9%
| J. O'Reilly | Conservative | 2,529 |
| G. Judd | Conservative | 2,335 |
| B. Moorcraft | Conservative | 2,315 |
| D. Lydiard | Labour | 2,289 |
| P. Duddridge | Labour | 2,240 |
| B. Mainsbridge | Labour | 2,216 |
| B. Hoolahan | Plaid Cymru - The Party of Wales | 231 |
| I. Walters | Plaid Cymru - The Party of Wales | 142 |
| M. Williams | Plaid Cymru - The Party of Wales | 127 |
| T. Davies | Conservative | 0 ✓ |
Llandaff3 seats · turnout 59.1%
| H. Ferguson-James | Conservative | 3,954 |
| M. Jones | Conservative | 3,772 |
| J. Hermer | Conservative | 3,677 |
| C. Lewis | Labour | 1,960 |
| G. Rhoden | Labour | 1,802 |
| G. Bowman | Plaid Cymru - The Party of Wales | 896 |
Llanishen6 seats · turnout 72.1%
| C. Milson | Conservative | 5,952 |
| R. Watkiss | Conservative | 5,814 |
| L. Smith | Conservative | 5,813 |
| A. Lewis | Conservative | 5,658 |
| D. Thomas | Conservative | 5,636 |
| G Tatham | Conservative | 5,556 |
| A. Brown | Labour | 3,402 |
| A. Davies | Labour | 3,373 |
| H. Howell | Labour | 3,301 |
| B. Williams | Labour | 3,284 |
| S. Jeans | Labour | 3,191 |
| E. Williams | Labour | 3,029 |
| C. Pearcy | LIB | 2,015 |
| R. Edwards | Plaid Cymru - The Party of Wales | 848 |
| S. Doyle | Plaid Cymru - The Party of Wales | 820 |
| J. May | Plaid Cymru - The Party of Wales | 722 |
Penylan6 seats · turnout 70.2%
| A. Austin | Conservative | 10,159 ✓ |
| R. Hennessy | Conservative | 10,114 ✓ |
| S. Terlezki | Conservative | 10,100 ✓ |
| M. Newman | Conservative | 10,060 ✓ |
| A Johnson | Conservative | 10,039 ✓ |
| A. Thomas | Conservative | 9,402 ✓ |
| G. Thomas | Labour | 5,317 |
| S. Caesar | Labour | 4,953 |
| M. Edwards | Labour | 4,921 |
| P Williams | Labour | 4,916 |
| L. Green | Labour | 4,658 |
| P. Davies | LIB | 3,129 |
| J. Jones | LIB | 2,990 |
| D. Hill | LIB | 2,961 |
| P. Linsey | LIB | 2,735 |
| C. Mitchell | LIB | 2,548 |
| A. Reeves | LIB | 2,386 |
| E. Bush | Plaid Cymru - The Party of Wales | 1,138 |
| B. Hughes | Plaid Cymru - The Party of Wales | 1,084 |
| A. Couch | Plaid Cymru - The Party of Wales | 1,077 |
| A. Morgan | Plaid Cymru - The Party of Wales | 1,060 |
| C. Lake | Plaid Cymru - The Party of Wales | 1,003 |
| I. Howells | Plaid Cymru - The Party of Wales | 970 |
Plasmawr6 seats · turnout 58.3%
| D. O'Driscoll | Labour | 5,201 |
| F. Tyrrell | Labour | 5,152 |
| M Phillips | Labour | 5,044 |
| M. Longden | Labour | 4,965 |
| D. Evans | Labour | 4,883 |
| B. Shorten | Labour | 4,808 |
| B. Hall | Conservative | 3,454 |
| Debbie Davies | Conservative | 3,331 |
| A. Trott | Conservative | 3,259 |
| W. Jones | Conservative | 3,201 |
| H. Derrick | Conservative | 3,141 |
| E. McAuliffe | Conservative | 3,139 |
| D. Davies | Plaid Cymru - The Party of Wales | 1,228 |
Plasnewydd3 seats · turnout 65.3%
| O. Watkin | Conservative | 2,517 ✓ |
| S. James | Conservative | 2,325 ✓ |
| D. Evans | Conservative | 2,258 ✓ |
| C. Richards | Labour | 2,097 |
| C. Robinson | Labour | 1,848 |
| S. Khan | Labour | 1,621 |
| G. German | LIB | 1,022 |
| P. Jarman | LIB | 719 |
| O. Thomas | Plaid Cymru - The Party of Wales | 654 |
| P. Brightman | LIB | 629 |
| G. Rees | Plaid Cymru - The Party of Wales | 377 |
| D. Bianchi | Plaid Cymru - The Party of Wales | 325 |
| G. Millard | Conservative | 0 ✓ |
| L. Clarke | Conservative | 0 ✓ |
Rhiwbina3 seats · turnout 75.7%
| W. Bain | Conservative | 5,650 |
| G. Jones | Conservative | 5,561 |
| G. Neale | Conservative | 5,549 |
| D Rees | Labour | 1,934 |
| T. Morris | Labour | 1,933 |
| R. Woolfe | Labour | 1,779 |
| D. Davies | Plaid Cymru - The Party of Wales | 817 |
| R. Williams | Plaid Cymru - The Party of Wales | 611 |
Riverside3 seats · turnout 56.1%
| W. Walker | Labour | 2,231 |
| J. McCarthy | Labour | 1,983 |
| A. Verma | Labour | 1,830 |
| S. Doxsey | Conservative | 1,814 |
| R. Souza De | Conservative | 1,789 |
| F. McAndrews | Conservative | 1,534 |
| D. Mathias | Independent | 1,001 |
| G. Arthur | Plaid Cymru - The Party of Wales | 405 |
Roath3 seats · turnout 68.9%
| N. Lloyd-Edwards | Conservative | 4,677 |
| C. Hutchings | Conservative | 4,563 |
| G. Brinks | Conservative | 4,393 |
| T. Tucker | Labour | 2,784 |
| N. Davies | Labour | 2,426 |
| R Rees | Labour | 2,288 |
Rumney6 seats · turnout 64.2%
| M. Llewellyn | Labour | 8,581 |
| B. Drew | Labour | 7,494 |
| D English | Labour | 7,435 |
| A. Michael | Labour | 7,403 |
| Phillips J. | Labour | 7,348 |
| J. Reynolds | Labour | 7,281 |
| I. Davies | Conservative | 4,752 |
| McCarthy A. | Conservative | 4,705 |
| P. Thomas | Conservative | 4,654 |
| M. Battista | Conservative | 4,597 |
| T. Jose | Conservative | 4,532 |
| P. Nicholson | Conservative | 4,394 |
South3 seats · turnout 63.3%
| P. Dunleavy | Labour | 2,616 |
| J. Smith | Labour | 2,510 |
| P. Bowen | Labour | 2,312 |
| E. Williams | Conservative | 1,475 |
| F Arnold | Conservative | 1,378 |
| K Williams | Conservative | 1,228 |
| E. Roberts | Plaid Cymru - The Party of Wales | 165 |
| D. Harris | Plaid Cymru - The Party of Wales | 149 |
| S. Richards | COMM | 128 |
Splott3 seats · turnout 68.6%
| D. Ormonde | Labour | 3,393 |
| E. Price | Labour | 3,072 |
| J. Southern | Labour | 2,793 |
| A. Kelly | Conservative | 1,866 |
| F. Chichester | Conservative | 1,788 |
| R. James | Conservative | 1,682 |
Whitchurch3 seats · turnout 75.8%
| T. Davies | Conservative | 4,413 ✓ |
| W Griffiths | Conservative | 4,359 ✓ |
| V Riley | Conservative | 4,299 ✓ |
| W. Davies | Labour | 2,374 |
| T. Crews | Labour | 2,266 |
| T. James | Labour | 2,151 |
| P. O'Brien | LIB | 1,021 |
| S. Soffa | LIB | 829 |
| C. Webb | LIB | 780 |
| H. Pritchard-Jones | Plaid Cymru - The Party of Wales | 393 |
| I. Williams | Plaid Cymru - The Party of Wales | 358 |
