Before (end of 2016) (73 seats, Elections Centre)
Labour 50 · Plaid Cymru - The Party of Wales 20 · Other 3 · Conservative 0 · Liberal Democrats 0
After (end of 2017) (73 seats, Elections Centre)
Labour 50 · Plaid Cymru - The Party of Wales 18 · Other 5 · Conservative 0 · Liberal Democrats 0
Ward results
Aber Valley3 seats
| John Taylor | PC | 990 ✓ |
| Lyndon J Binding | — | 984 ✓ |
| John Roberts | — | 945 ✓ |
| David Zenati-Parsons | Labour | 307 |
| Jo Rao | Labour | 297 |
| Ryan Graham Smith | Conservative | 212 |
Aberbargoed2 seats
| Alan Gerald Higgs | Labour | 362 ✓ |
| Alan Collis | Labour | 352 ✓ |
| Lowri Cerys Edwards | — | 320 |
| Paul Edwards | PC | 300 |
| Keith Mills | UK Independence Party (UKIP) | 121 |
Abercarn2 seats
| Andrew Whitcombe | Labour | 688 ✓ |
| Denver Preece | Labour | 663 ✓ |
| Alison Jones | PC | 493 |
| Tudur Jones | PC | 358 |
| Margaret Elizabeth Denney | Liberal Democrats | 251 |
Argoed1 seat
| Walter Williams | Labour | 427 ✓ |
| John Henry Moore | UK Independence Party (UKIP) | 168 |
| Roger John Moore | — | 144 |
Bargoed3 seats
| Tudor Davies | Labour | 692 ✓ |
| Dianne Price | Labour | 616 ✓ |
| Carol Julia Andrews | Labour | 582 ✓ |
| Kevin Philip Viney | — | 423 |
| Gillian Jones | PC | 409 |
| James Kerby | Independent | 322 |
| Andrew Thomas Nutt | — | 317 |
| Belinda Gingell | Independent | 172 |
Bedwas, Trethomas and Machen4 seats
| Liz Aldworth | Labour | 1,378 ✓ |
| Lisa Phipps | Labour | 1,241 ✓ |
| Derek Havard | Labour | 1,178 ✓ |
| June Gale | Labour | 1,049 ✓ |
| John James Dew | Independent | 741 |
| Gareth Llewellyn | PC | 723 |
| Janet Walsh | Independent | 618 |
| Daniel Llewellyn | PC | 572 |
| Paul Stringer | PC | 531 |
| Philip Goodger | Conservative | 504 |
| Mike Roberts | Conservative | 494 |
| Teresa Winiarski | PC | 397 |
| Peter Gaskell | Green | 257 |
Blackwood3 seats
| Kevin Etheridge | Independent | 1,069 ✓ |
| Nigel Stuart Dix | Independent | 791 ✓ |
| Andrew Farina-Childs | Independent | 625 ✓ |
| Keith Smallman | Independent | 618 |
| Patricia Cook | Labour | 604 |
| Janet Griffiths | Labour | 530 |
| Matthew Sessions | Labour | 476 |
| Allan Rees | Independent | 427 |
| Darren Jones | PC | 377 |
| Andrew Short | PC | 355 |
| Steven Anthony Blakeman | — | 320 |
| Paul Taylor | UK Independence Party (UKIP) | 278 |
Cefn Fforest2 seats
| Tom Williams | Labour | 453 ✓ |
| Graham Derek Simmonds | Independent | 450 ✓ |
| Christopher Hawker | Labour | 437 |
| Louise Phillips | Independent | 423 |
Cross Keys1 seat
| Julian Simmonds | Labour | 450 ✓ |
| Christopher Cook | PC | 392 |
Crumlin2 seats
| Carl Jeffrey Thomas | Labour | 701 ✓ |
| Meirick Lloyd Davies | PC | 619 ✓ |
| Andrew Lewis | Labour | 612 |
| Alwyn Lewis Lloyd | — | 504 |
| Phillip Fowler | Independent | 281 |
| Dominic Walker | Independent | 251 |
Darren Valley1 seat
| David Thomas Hardacre | Labour | 349 ✓ |
| Keiron David O'Hagan | Independent | 242 |
Gilfach1 seat
| Lindsey Harding | Labour | 335 ✓ |
| Kenneth Houston | PC | 147 |
| Granville Hale | Conservative | 53 |
Hengoed2 seats
| Donna Cushing | PC | 678 ✓ |
| Teresa Elizabeth Parry | — | 676 ✓ |
| Mark Anthony Boyland | Labour | 478 |
| Graham George Wills | UK Independence Party (UKIP) | 298 |
Llanbradach2 seats
| Robert William Gough | — | 870 ✓ |
| Colin Mann | — | 834 ✓ |
| Rhydian Dafydd Birkinshaw-Bird | Labour | 324 |
| Bethan Louise Thomas | Labour | 320 |
Maesycwmmer1 seat
| Vincent Alec James | Labour | 327 ✓ |
| Catrin Sara Moss | — | 174 |
| William Jones | Conservative | 128 |
Morgan Jones3 seats
| James Pritchard | Labour | 1,059 ✓ |
| Phillip Bevan | PC | 909 ✓ |
| Shayne Cook | Labour | 900 ✓ |
| Roger Bidgood | PC | 821 |
| Michael Prew | PC | 783 |
| Shelly Hodder | Labour | 775 |
| Peter Wallace Jones | Conservative | 256 |
| Gerry Jones | Conservative | 245 |
| Wilfred Hugh Phillips | Conservative | 196 |
Moriah2 seats
| John Bevan | Labour | 565 ✓ |
| Dai Harse | Labour | 538 ✓ |
| Nathan Thomas Flanagan | — | 431 |
Nelson2 seats
| Sean Morgan | Labour | 725 ✓ |
| Brenda Miles | Labour | 560 ✓ |
| Malcolm Tucker | PC | 391 |
| Anne Blackman | CPA | 374 |
| Marls Tucker | PC | 332 |
| Kay David | Liberal Democrats | 183 |
NEW TREDEGAR2 seats
| Eluned Stenner | Labour | 687 ✓ |
| Mark Anthony Evans | Labour | 665 ✓ |
| Kev Rodgers | Independent | 257 |
| Rachael Joanne Dixon | — | 137 |
| Bethany Adele Edwards | — | 122 |
Newbridge3 seats
| Gary Johnston | Labour | 719 ✓ |
| Adrian Hussey | Labour | 677 ✓ |
| Kath Baker (NOT ELECTED) | PC | 655 |
| Leeroy Jeremiah | Labour | 655 ✓ |
| Wayne Morrisey | PC | 543 |
| Rhys Mills | PC | 535 |
| Jago Lewis | Conservative | 326 |
| Matthew Kidner | Liberal Democrats | 273 |
| Stuart Roberston | Conservative | 206 |
| Heather Robertson | Conservative | 201 |
Pengam2 seats
| David Vincent Poole | Labour | 507 ✓ |
| Kevin Dawson | Labour | 505 ✓ |
| Noel Goeffrey Turner | — | 350 |
| Christopher Paul | PC | 217 |
Penmaen2 seats
| Roy Saralis | Labour | 903 ✓ |
| Ben Zaplatynski | Labour | 744 ✓ |
| John Owen Evans | — | 505 |
| Kevin Jones | PC | 450 |
| Richard John Jones | Conservative | 324 |
| Steve Sims | Conservative | 299 |
Penyrheol4 seats
| Lisa Whittle | — | 1,653 ✓ |
| Margaret Eiddwen Sargent | — | 1,340 ✓ |
| Jon Scriven | PC | 1,337 ✓ |
| Steve Skivens | — | 1,270 ✓ |
| Huw Rhodri Davies | Labour | 910 |
| Sandra Jones | Labour | 854 |
| Janice Anne Davies | Labour | 847 |
| Milena Zenati-Parsons | Labour | 716 |
| Gregory Elliott | Conservative | 514 |
| Cameron Muir-Jones | Conservative | 513 |
| Steven Roberts | Conservative | 383 |
| Lawrence John Frederick Andrews | UK Independence Party (UKIP) | 340 |
| Ian William Gorman | UK Independence Party (UKIP) | 279 |
Pontllanfraith3 seats
| Michael Adams | Labour | 1,107 ✓ |
| Colin John Gordon | Labour | 1,039 ✓ |
| Gez Kirby | Labour | 966 ✓ |
| Jim Criddle | PC | 773 |
| Zoe Hammond | PC | 589 |
| Andrew Brian Williamson | Conservative | 544 |
| Wendy Phillips | Conservative | 533 |
| Mike Jackson | PC | 507 |
Pontlottyn1 seat
| Gaynor Denise Oliver | Labour | 239 ✓ |
| Mervyn Dorian Diggle | Independent | 235 |
| David Adam Rees | — | 57 |
Risca East3 seats
| Nigel George | Labour | 728 ✓ |
| Arianna Leonard | Labour | 709 ✓ |
| Arianna Leonard | Labour | 709 ✓ |
| Philippa Leonard | Labour | 690 ✓ |
| Jackie Jones | Conservative | 287 |
| Graham Jones | Conservative | 279 |
| James Mallindine | Conservative | 227 |
| Alexander Peter James Owen | — | 210 |
| Gareth Macleur | PC | 190 |
| Luke Smith | PC | 165 |
Risca West2 seats
| Bob Owen | Independent | 640 ✓ |
| Ross Whiting | Labour | 620 ✓ |
| Ceri Marina Wright | Labour | 525 |
| Anthony Sims | Conservative | 270 |
| Brian Hancock | PC | 265 |
| Matt Farrell | — | 225 |
St James3 seats
| Christine Forehead | Labour | 615 ✓ |
| Elaine Forehead | Labour | 561 ✓ |
| Barbara Avril Jones | Labour | 543 ✓ |
| Paul Michael Bradbury | — | 534 |
| Jayne Elizabeth Garland | — | 517 |
| John Anthony Leek | — | 440 |
| John Gareth Valentine Evans | Conservative | 288 |
| Ian Chivers | Conservative | 279 |
| Doreen Morgan | Conservative | 261 |
| Sam Gould | UK Independence Party (UKIP) | 182 |
| David Owers | UK Independence Party (UKIP) | 138 |
| Andrew Shakespeare | UK Independence Party (UKIP) | 114 |
St. Cattwg3 seats
| Wynne David | Labour | 1,077 ✓ |
| Ann Gair | Labour | 867 ✓ |
| Carmen Marie Bezzina | Labour | 782 ✓ |
| Wendy Matthews | PC | 756 |
| Jessica Alfonso Robledo | PC | 597 |
| Richard Euan Osborne | — | 551 |
St. Martins3 seats
| Colin Elsbury | PC | 1,284 ✓ |
| James Fussell | — | 1,250 ✓ |
| Stephen Kent | PC | 1,211 ✓ |
| Anne Broughton-Pettit | Labour | 717 |
| Tony Graham | Labour | 714 |
| Judith Elizabeth Child | Conservative | 665 |
| Robert Stanley Lea | Conservative | 638 |
| John Pettit | Labour | 614 |
| Elizabeth Jane Evans | Conservative | 603 |
| Richard Williams | UK Independence Party (UKIP) | 283 |
| Hazel Norris | UK Independence Party (UKIP) | 253 |
| Megan Churchland | TUSC | 101 |
Twyn Carno1 seat
| Carl John Cuss | Labour | 0 ✓ |
Ynysddu2 seats
| Phillippa Marsden | Labour | 720 ✓ |
| John Philip Ridgewell | Labour | 638 ✓ |
| Lyn Ackerman | PC | 244 |
| Terry Birkett | PC | 227 |
Ystrad Mynach2 seats
| Martyn James | — | 919 ✓ |
| Alan Patrick Angel | — | 885 ✓ |
| Kerry Jones | Labour | 505 |
| Alan Dowler | Labour | 435 |
