Before (end of 2003) (73 seats, Elections Centre)
Plaid Cymru - The Party of Wales 38 · Labour 28 · Liberal Democrats 4 · Other 3 · Conservative 0
After (end of 2004) (73 seats, Elections Centre)
Labour 39 · Plaid Cymru - The Party of Wales 26 · Other 8 · Conservative 0 · Liberal Democrats 0
Ward results
Aber Valley3 seats
| Paula Ford | Labour | 857 ✓ |
| John Taylor | PC | 819 ✓ |
| Bruce Barker | Labour | 729 ✓ |
| Reginald Phillips | Labour | 724 |
| Handel Davies | PC | 667 |
| John Roberts | PC | 656 |
| Timothy Richards | — | 188 |
| Alison Hobbs | — | 163 |
Aberbargoed2 seats
| Keith Reynolds | Labour | 529 ✓ |
| Alan Gerald Higgs | Labour | 438 ✓ |
| Hugh Farrant | Independent | 242 |
| Wayne Pritchard | PC | 217 |
| Paul Edwards | PC | 213 |
Abercarn2 seats
| Karen James | Labour | 888 ✓ |
| D Preece | Labour | 840 |
| Alison Jones | PC | 445 |
| Ian Ackerman | PC | 430 |
Argoed1 seat
| Hilary McGuill | Liberal Democrats | 657 ✓ |
| Alastair Williams | Labour | 457 ✓ |
| Mary Hughes | PC | 223 |
| Carol HUGHES | Labour | 192 |
Bargoed3 seats
| David Davies | Labour | 983 ✓ |
| David James Carter | Labour | 885 ✓ |
| Dianne Price | Labour | 789 ✓ |
| Kevin Philip Viney | PC | 628 |
| Gillian Jones | PC | 493 |
| Marian Viney | PC | 482 |
| Carol Andrews | Liberal Democrats | 306 |
| James Kerby | Independent | 276 |
Bedwas, Trethomas and Machen4 seats
| Elizabeth Aldworth | Labour | 1,594 ✓ |
| Richard Davies | Labour | 1,477 ✓ |
| Jeremy Islwyn Trevor Davies | Labour | 1,424 ✓ |
| Angus Donaldson | Independent | 1,394 ✓ |
| Derek Havard | Labour | 1,127 |
| William Thomas | — | 788 |
| Nadine Vincent | PC | 713 |
| Kenneth Houston | PC | 607 |
Blackwood3 seats
| Kevin Etheridge | Independent | 1,994 ✓ |
| Leon Gardiner | Labour | 751 ✓ |
| Nigel Dix | Labour | 617 ✓ |
| Mark Jonathan Maguire | Labour | 616 |
| Paul Booth | Independent | 418 |
| Ian Franklin | PC | 312 |
| Erik Darling | PC | 304 |
| Owen Erasmus | PC | 304 |
| P. Morris | Conservative | 204 |
| Winifred Jones | Conservative | 190 |
Cefn Fforest2 seats
| Graham Derek Simmonds | Independent | 574 ✓ |
| Tom Williams | Labour | 517 ✓ |
| Colin Finch | Labour | 456 |
| Clive Payne | Independent | 264 |
| Andrew Farina-Childs | PC | 230 |
| Karen Denise Lawrence Davies | PC | 208 |
| Adrian Stevens | Conservative | 76 |
Cross Keys1 seat
| David Gray | Labour | 749 ✓ |
| Marina Pritchard | PC | 195 |
| Wendy Phillips | Conservative | 108 |
Crumlin2 seats
| Keith Lloyd | PC | 1,095 ✓ |
| Vera Jenkins | PC | 916 ✓ |
| B Matthews | Labour | 832 |
| Andrew Lewis | Labour | 731 |
Darren Valley1 seat
| David Thomas Hardacre | Labour | 505 ✓ |
| Andrew Thomas Nutt | PC | 172 |
Gilfach1 seat
| Harry Andrews | Labour | 674 ✓ |
| David Williams | PC | 115 |
Hengoed2 seats
| Dennis Bolter | PC | 716 ✓ |
| Judith Pritchard | PC | 716 ✓ |
| Thomas Matthews | Labour | 498 |
| Elizabeth Moore | Labour | 491 |
Llanbradach2 seats
| Robert William Gough | PC | 1,092 ✓ |
| R. Gough | PC | 1,029 ✓ |
| Colin Mann | PC | 934 ✓ |
| Jo Rao | Labour | 357 |
| Mary Veater | Labour | 345 |
Maesycwmmer1 seat
| Robin Woodyatt | Labour | 531 ✓ |
| Edith Jones | PC | 154 |
Morgan Jones3 seats
| Phillip Bevan | PC | 1,026 ✓ |
| Mark Newman | PC | 910 ✓ |
| Michael Prew | PC | 861 ✓ |
| John Newnham | Labour | 566 |
| Anne Pettit | Labour | 546 |
| John Pettit | Labour | 506 |
Moriah2 seats
| John Bevan | Labour | 893 ✓ |
| Stephen Lewis | Labour | 838 ✓ |
| Anne Green | PC | 273 |
Nelson2 seats
| Angela Blackman | Independent | 974 ✓ |
| Marlene Derrett | Independent | 739 ✓ |
| Leonard Lewis | Labour | 551 |
| Pamela Baldwin | Labour | 468 |
NEW TREDEGAR2 seats
| Gareth Jones | Labour | 1,083 ✓ |
| Leslie Rees | Labour | 928 ✓ |
| Iestyn ap Dafydd | PC | 326 |
Newbridge3 seats
| Lyn Ackerman | PC | 931 ✓ |
| Katherine Baker | PC | 894 ✓ |
| Meirick Lloyd Davies | PC | 884 ✓ |
| Alan Hunter | Labour | 855 |
| P. Cook | Labour | 736 |
| George Maddock | Labour | 704 |
| Paul Matthews | Conservative | 221 |
| Matthews T-A. Ms. | Conservative | 203 |
Pengam2 seats
| Kevin Dawson | Labour | 645 ✓ |
| David Vincent Poole | Labour | 602 ✓ |
| Noel Goeffrey Turner | PC | 344 |
| Gary Franklin | PC | 284 |
| Christopher Williams | Independent | 187 |
| Sonia Stephens | Conservative | 95 |
Penmaen2 seats
| Allan Pritchard | PC | 669 ✓ |
| John Owen Evans | PC | 667 ✓ |
| Jean Summers | Labour | 482 |
| Keith Gingell | Labour | 426 |
| P Taylor | Independent | 320 |
| Roger Evans | Independent | 240 |
| P. Thomas | Independent | 203 |
| Richard John Jones | Conservative | 128 |
| William Jones | Conservative | 75 |
Penyrheol4 seats
| Lisa Whittle | PC | 1,753 ✓ |
| Anne Collins | PC | 1,549 ✓ |
| Daniel Potter | PC | 1,472 ✓ |
| Margaret Eiddwen Sargent | PC | 1,384 ✓ |
| Peter Slarke | Labour | 1,055 |
| Janet Cullen | Labour | 1,048 |
| Peter Fitzgerald | Labour | 1,024 |
| Mukul Haldar | Labour | 840 |
| Alison Seabourne | Labour | 694 ✓ |
| David Thomas Jones | Labour | 676 ✓ |
| Peter Woollard | — | 564 |
| Graham Gallagher | Independent | 479 |
| David Griffiths | Liberal Democrats | 321 |
| Eleanor Davies | Conservative | 270 |
Pontllanfraith3 seats
| Malcolm Parker | PC | 1,033 ✓ |
| Michael Adams | Labour | 986 ✓ |
| Gwyn Price | Labour | 904 ✓ |
| Mark Pritchard | PC | 838 |
| Ian Rogers | Labour | 835 |
| Gwenfron Williams | PC | 760 |
| Patricia Presley | Independent | 636 |
| Ian Chivers | Conservative | 341 |
| Jane McLain | Conservative | 306 |
Pontlottyn1 seat
| Ann Morgan | Labour | 410 ✓ |
| Dorothy Delroy-Jones | PC | 103 |
Risca East3 seats
| Stanley Jenkins | Labour | 905 ✓ |
| Rhianon Passmore | Labour | 819 ✓ |
| Betty Toomer | Labour | 815 ✓ |
| Harry Styles | PC | 578 |
| Nigel Pearce | Liberal Democrats | 454 |
Risca West2 seats
| Edward Griffiths | Labour | 1,011 ✓ |
| David Wiltshire | Labour | 910 ✓ |
| Brian Hancock | PC | 448 |
| David Trefor Jones | PC | 303 |
| G Hale | Conservative | 211 |
St James3 seats
| Christine Forehead | Labour | 716 ✓ |
| Colin Duggan | Labour | 605 ✓ |
| Elaine Forehead | Labour | 598 ✓ |
| Vivian Williams | PC | 557 |
| Una Newman | PC | 556 |
| David Roberts | PC | 548 |
St. Cattwg3 seats
| Keith Derrick | Independent | 1,207 ✓ |
| Wynne David | Independent | 1,054 ✓ |
| Gareth James Hughes | Labour | 1,020 ✓ |
| Graham Court | Labour | 998 |
| Wendy Matthews | Labour | 963 |
| Chris Morgan | Independent | 844 |
St. Martins3 seats
| James Fussell | PC | 838 ✓ |
| Stephen Kent | PC | 661 ✓ |
| Geoffrey Hibbert | PC | 647 ✓ |
| Ann East | Labour | 625 |
| Gwyn Nicholls | Labour | 581 |
| Baron Evans of Parkside John Evans | Labour | 526 |
| Judith Elizabeth Child | Conservative | 526 |
| Huw Price | Liberal Democrats | 513 |
| Robert Stanley Lea | Conservative | 493 |
| Terence Newhouse | Conservative | 428 |
| Russell Deacon | Liberal Democrats | 421 |
| Helen Forsey | Liberal Democrats | 409 |
Twyn Carno1 seat
| Peter Bailie | Independent | 492 ✓ |
| Hilda Williams | Labour | 220 |
Ynysddu2 seats
| Donald Cullen | PC | 598 ✓ |
| Jan Jones | Labour | 598 ✓ |
| Anthony Wilkins | Labour | 576 |
| Elizabeth Holland | PC | 538 |
Ystrad Mynach2 seats
| Royston Cook | PC | 876 ✓ |
| Julie Richards | PC | 844 ✓ |
| Brian Jones | Labour | 603 |
| Gruffydd Williams | Labour | 550 |