A big thank you to @AndyJSajs for collating the information
| Constituency | PC votes | Total votes | PC % | |
| 1 | Arfon | 11,790 | 26,837 | 43.93 |
| 2 | Dwyfor Meirionnydd | 11,811 | 28,913 | 40.85 |
| 3 | Carmarthen East & Dinefwr | 15,140 | 39,399 | 38.43 |
| 4 | Ynys Môn | 10,642 | 34,926 | 30.47 |
| 5 | Ceredigion | 10,347 | 37,416 | 27.65 |
| 6 | Rhondda | 8,521 | 31,538 | 27.02 |
| 7 | Llanelli | 8,853 | 38,574 | 22.95 |
| 8 | Neath | 6,722 | 37,135 | 18.10 |
| 9 | Cynon Valley | 5,126 | 30,472 | 16.82 |
| 10 | Caerphilly | 5,895 | 40,283 | 14.63 |
| 11 | Cardiff West | 6,096 | 43,792 | 13.92 |
| 12 | Clwyd West | 4,651 | 38,028 | 12.23 |
| 13 | Aberconwy | 3,536 | 30,148 | 11.73 |
| 14 | Aberavon | 3,663 | 31,523 | 11.62 |
| 15 | Pontypridd | 4,348 | 37,882 | 11.48 |
| 16 | Islwyn | 3,794 | 35,401 | 10.72 |
| 17 | Carmarthen West & Pembrokeshire South | 4,201 | 40,350 | 10.41 |
| 18 | Swansea East | 3,498 | 33,618 | 10.41 |
| 19 | Clwyd South | 3,620 | 35,064 | 10.32 |
| 20 | Ogmore | 3,556 | 35,250 | 10.09 |
| 21 | Merthyr Tydfil & Rhymney | 3,099 | 32,715 | 9.47 |
| 22 | Blaenau Gwent | 2,849 | 31,683 | 8.99 |
| 23 | Wrexham | 2,501 | 32,719 | 7.64 |
| 24 | Cardiff South & Penarth | 3,443 | 46,667 | 7.38 |
| 25 | Gower | 3,051 | 42,758 | 7.14 |
| 26 | Bridgend | 2,784 | 39,453 | 7.06 |
| 27 | Vale of Clwyd | 2,486 | 35,261 | 7.05 |
| 28 | Swansea West | 2,266 | 35,156 | 6.45 |
| 29 | Preseli Pembrokeshire | 2,518 | 40,556 | 6.21 |
| 30 | Torfaen | 2,169 | 37,937 | 5.72 |
| 31 | Vale of Glamorgan | 2,869 | 51,293 | 5.59 |
| 32 | Montgomeryshire | 1,745 | 33,757 | 5.17 |
| 33 | Cardiff Central | 1,925 | 38,646 | 4.98 |
| 34 | Delyn | 1,803 | 37,457 | 4.81 |
| 35 | Cardiff North | 2,301 | 51,151 | 4.50 |
| 36 | Brecon & Radnorshire | 1,767 | 40,074 | 4.41 |
| 37 | Newport West | 1,604 | 40,347 | 3.98 |
| 38 | Monmouth | 1,875 | 47,462 | 3.95 |
| 39 | Alyn & Deeside | 1,608 | 41,314 | 3.89 |
| 40 | Newport East | 1,231 | 35,108 | 3.51 |
| TOTALS | 181,704 | 1,498,063 | 12.13 |