Before (end of 2011) (75 seats, Elections Centre)
Plaid Cymru - The Party of Wales 36 · Other 30 · Liberal Democrats 5 · Labour 4 · Conservative 0
After (end of 2012) (75 seats, Elections Centre)
Plaid Cymru - The Party of Wales 37 · Other 31 · Labour 4 · Liberal Democrats 3 · Conservative 0
Ward results
Aberdaron1 seat
| William Roberts | PC | 274 ✓ |
| Griff Ward-Jones | — | 211 |
Abererch1 seat
| Peter Read | — | 403 ✓ |
| Paula Stevenson | PC | 101 |
Abermaw1 seat
| Gethin Glyn Williams | PC | 362 ✓ |
| Trevor Roberts | Labour | 257 |
Abersoch1 seat
| Wyn Williams | PC | 0 ✓ |
Arllechwedd1 seat
| Dafydd Meurig | PC | 0 ✓ |
Bala1 seat
| Dilwyn Morgan | PC | 0 ✓ |
Bethel1 seat
| Sion Jones | Labour | 375 ✓ |
| Huw Hughes | PC | 252 |
Bontnewydd1 seat
| Chris Hughes | PC | 309 ✓ |
| John Hughes-Evans | LlG | 161 |
Botwnnog1 seat
| Gweno Glyn | — | 208 ✓ |
| Gareth Roberts | PC | 193 |
Bowydd & Rhiw1 seat
| Paula Thomas | PC | 0 ✓ |
Bryn-crug/Llanfihangel1 seat · turnout 65.8%
| B. Lawton | Independent | 212 ✓ |
| A. Evans | Plaid Cymru - The Party of Wales | 136 |
| J. Pugh | Independent | 66 |
| N. Clarke | Independent | 51 |
| G. Hughes | Other | 35 |
Cadnant1 seat
| Huw Edwards | PC | 397 ✓ |
| Glyn Thomas | Labour | 268 |
Clynnog1 seat
| Owan Williams | — | 329 ✓ |
| Mici Plwm | PC | 156 |
Corris/​Mawddwy1 seat
| John Pughe Roberts | Independent | 0 ✓ |
Corris/Mawddwy1 seat
| J. Roberts | Independent | 0 ✓ |
Criccieth1 seat
| Eirwyn Williams | Independent | 287 ✓ |
| Robin Hughes | Independent | 174 |
| Guto Tomos | PC | 133 |
| Bronwen Naish | Conservative | 98 |
Cwm-y-glo1 seat
| Brian Jones | Labour | 0 ✓ |
Deiniol1 seat
| Deb Edwards | Labour | 66 ✓ |
| Dewi Llewelyn | PC | 62 |
| Mohammed Shultan | Liberal Democrats | 52 |
Deiniolen1 seat
| Elfed Williams | Independent | 357 ✓ |
| Len Jones | PC | 205 |
Dewi1 seat
| Erdal Dogan | PC | 254 ✓ |
| Evelyn Butler | Labour | 154 |
| Jason Ince | Liberal Democrats | 35 |
Diffwys and Maenofferen1 seat
| Mandy Williams-Davies | PC | 309 ✓ |
| Antony Kent | — | 92 |
Dolbenmaen1 seat
| Stephen Churchman | Liberal Democrats | 0 ✓ |
Dolgellau North1 seat
| Dyfrig Siencyn | PC | 243 ✓ |
| Delwyn Evans | Independent | 199 |
Dolgellau South1 seat
| Linda Morgan | PC | 326 ✓ |
| John Paul Raghoobar | Independent | 222 |
Dyffryn Ardudwy1 seat
| Eryl Jones-Williams | Independent | 0 ✓ |
Efail-newydd/​Buan1 seat
| Anwen Davies | LlG | 399 ✓ |
| Tomos Evans | PC | 157 |
Efail-newydd/Buan1 seat · turnout 56.1%
| A. Davies | Other | 399 ✓ |
| T. Evans | Plaid Cymru - The Party of Wales | 157 |
Garth1 seat
| Lesley Day | Independent | 114 ✓ |
| John Meredith | PC | 81 |
Gerlan1 seat
| David Trefor Jones | PC | 375 ✓ |
| Katherine Jones | SOC LAB | 175 |
Glyder1 seat
| Elin Walker Jones | PC | 317 ✓ |
| Douglas Madge | Liberal Democrats | 285 |
Groeslon1 seat
| Ed Jones | Independent | 634 ✓ |
| Llyr ab Alwyn | PC | 133 |
Harlech1 seat
| Edmund Roberts | PC | 471 ✓ |
| Gwynedd Rowlands | LlG | 187 |
Hendre1 seat
| John Gethin Jones | PC | 153 ✓ |
| Joshua Clarke | Labour | 136 |
Hirael1 seat
| Jean Forsyth | Independent | 227 ✓ |
| Shojjad Ali | Labour | 107 |
| Suzanne Ince | Liberal Democrats | 23 |
Llanaelhaearn1 seat
| Llywarch Jones | — | 353 ✓ |
| Morgan Jones-Parry | Independent | 238 |
| Osian Williams | PC | 85 |
| Richard Japheth | Independent | 32 |
Llanbedr1 seat
| Annwen Hughes | PC | 261 ✓ |
| Roger Payne | — | 184 |
Llanbedrog1 seat
| Angela Russell | Independent | 255 ✓ |
| William Jones | PC | 219 |
Llanberis1 seat
| Trevor Edwards | Independent | 0 ✓ |
Llandderfel1 seat
| Elwyn Edwards | PC | 0 ✓ |
Llanengan1 seat
| John Hughes | — | 274 ✓ |
| Hefin Roberts | PC | 145 |
Llangelynin1 seat
| Louise Hughes | — | 496 ✓ |
| John Haycock | Independent | 235 |
Llanllyfni1 seat
| Craig ab Iago | PC | 269 ✓ |
| Gareth Jones | — | 159 |
Llanrug1 seat
| Charles Wyn Jones | PC | 0 ✓ |
Llanuwchllyn1 seat
| Alan Jones Evans | PC | 0 ✓ |
Llanwnda1 seat
| Aeron Maldwyn Jones | LlG | 459 ✓ |
| Gwynedd Roberts | PC | 277 |
Llanystumdwy1 seat
| Aled Lloyd Evans | PC | 512 ✓ |
| Thomas Evans | — | 212 |
Marchog2 seats
| Nigel Pickavance | Independent | 365 ✓ |
| Carol O'Neal | Independent | 247 ✓ |
| Keith Greenly-Jones | Labour | 218 |
| Derek Charles Hainge | Labour | 143 |
| Sylvia Humphreys | Independent | 76 |
Menai (Bangor)2 seats
| Mair Rowlands | PC | 159 ✓ |
| June Marshall | Liberal Democrats | 151 ✓ |
| Illtud Jones | PC | 138 |
| Keith Marshall | Liberal Democrats | 123 |
| Michael Carey | Labour | 90 |
| Colum Taylor | Labour | 70 |
| Daniel Shooman | Independent | 43 |
Menai (Caernarfon)1 seat
| Ioan Thomas | PC | 519 ✓ |
| Richard Jones | Independent | 337 |
| Jim Bracegirdle | — | 77 |
Morfa Nefyn1 seat
| Liz Saville Roberts | PC | 378 ✓ |
| Christine Hughes | — | 110 |
Nefyn1 seat
| Gruffydd Williams | Independent | 217 ✓ |
| Carys Trenholme | PC | 199 |
| Llinos Merks | — | 124 |
| John Robert Thomas | Independent | 74 |
Ogwen1 seat
| Ann Williams | PC | 0 ✓ |
Peblig (Caernarfon)1 seat
| William Owen | PC | 287 ✓ |
| Karen Williams | — | 242 |
| Arnold Bohana | Labour | 108 |
Penisa’r-waun1 seat
| Robert Hefin Williams | PC | 0 ✓ |
Penrhyndeudraeth1 seat
| Gareth Thomas | PC | 655 ✓ |
| Oscar Ford | — | 258 |
Pentir1 seat
| John Williams | PC | 332 ✓ |
| Aaron Forrest | Labour | 147 |
| Martin Anthony Peet | Conservative | 60 |
| Andrew Joyce | Liberal Democrats | 32 |
Penygroes1 seat
| Dyfed Edwards | PC | 401 ✓ |
| Esyllt Humphreys | — | 255 |
Porthmadog East1 seat
| Jason Humphreys | — | 248 ✓ |
| Gwynfor Owen | PC | 195 |
| Gareth Glyn Jones | Independent | 92 |
Porthmadog West1 seat
| Evan Griffiths | PC | 0 ✓ |
Porthmadog-Tremadog1 seat
| Alwyn Gruffydd | — | 295 ✓ |
| Margaret Jones | PC | 175 |
| Dafydd Rhys Thomas | Independent | 97 |
Pwllheli North1 seat
| Michael Owen | PC | 358 ✓ |
| Henry Rees-Williams | — | 179 |
| Sion Roberts | Independent | 157 |
Pwllheli South1 seat
| Bob Wright | LlG | 374 ✓ |
| Alun Williams | PC | 252 |
Seiont2 seats
| James Endaf Cooke | LlG | 460 ✓ |
| William Roy Owen | Independent | 378 ✓ |
| Myfanwy Davies | PC | 311 |
| Tecwyn Thomas | Labour | 304 |
| Ken Jones | Independent | 280 |
| Eiriona Hughes | Independent | 156 |
Talysarn1 seat
| Ifor Dilwyn Lloyd | Independent | 256 ✓ |
| Peter Thomas | — | 236 |
| Nora Jones | PC | 139 |
Teigl1 seat
| Linda Ann Wyn Jones | PC | 0 ✓ |
Trawsfynydd1 seat
| Thomas Ellis | Independent | 0 ✓ |
| Gwenda Griffith | Labour | 448 ✓ |
| Dafydd Owen | PC | 442 |
Tudweiliog1 seat
| Simon Glyn | — | 220 ✓ |
| Guto Williams | PC | 141 |
Tywyn2 seats
| Mike Stevens | Independent | 716 ✓ |
| Anne Lloyd-Jones | Independent | 420 ✓ |
| John Pughe | Independent | 419 |
| Alun Evans | PC | 401 |
| Robert Hawkes | Conservative | 247 |
Waunfawr1 seat
| Eurig Wyn | PC | 388 ✓ |
| Gwilym Williams | Independent | 290 |
Y Felinheli1 seat
| Sian Gwenllian | PC | 0 ✓ |
