Notional results for a UK general election on 12 December 2019 Elections contested by Plaid Cymru

A notional general election to the 58th Parliament of the United Kingdom with an electorate of 47,558,398, having 32,014,119 valid votes.

Constituency Electorate Turnout Votes Vote share Position
Aberafan Maesteg 69,817 63.6% 3,991 9.0% 3rd
Alyn and Deeside 75,695 69.2% 1,781 3.4% 5th
Bangor Aberconwy 70,468 68.7% 7,849 16.2% 3rd
Blaenau Gwent and Rhymney 71,079 59.2% 2,687 6.4% 4th
Brecon, Radnor and Cwm Tawe 72,113 72.5% 1,692 3.2% 4th
Bridgend 70,770 66.0% 2,441 5.2% 4th
Caerfyrddin 72,683 73.4% 16,362 30.7% 2nd
Caerphilly 72,458 62.2% 6,630 14.7% 3rd
Cardiff East 72,463 64.6% 294 0.6% 6th
Cardiff North 71,143 76.9% 1,888 3.5% 4th
Cardiff South and Penarth 72,269 69.7% 2,091 4.2% 4th
Cardiff West 73,947 70.2% 4,419 8.5% 3rd
Ceredigion Preseli 74,063 69.8% 16,045 31.1% 1st
Clwyd East 76,395 69.1% 2,460 4.7% 4th
Clwyd North 76,150 67.4% 3,713 7.2% 3rd
Dwyfor Meirionnydd 72,533 69.6% 23,110 45.7% 1st
Gower 76,801 70.6% 2,741 5.1% 4th
Llanelli 69,895 62.8% 9,280 21.1% 3rd
Merthyr Tydfil and Aberdare 74,805 57.6% 3,513 8.1% 4th
Mid and South Pembrokeshire 76,820 71.6% 2,917 5.3% 3rd
Monmouthshire 72,681 72.7% 1,283 2.4% 5th
Montgomeryshire and Glyndwr 74,223 69.0% 1,019 2.0% 4th
Neath and Swansea East 74,705 60.0% 3,820 8.5% 4th
Newport East 76,159 60.9% 1,203 2.6% 5th
Newport West and Islwyn 76,234 63.7% 2,244 4.6% 5th
Pontypridd 73,743 61.8% 4,963 10.9% 3rd
Rhondda and Ogmore 73,557 57.8% 5,290 12.4% 3rd
Swansea West 74,612 59.2% 2,595 5.9% 5th
Torfaen 70,591 61.7% 1,566 3.6% 5th
Wrexham 70,964 66.4% 2,960 6.3% 3rd
Ynys Môn 52,415 69.7% 10,418 28.5% 3rd

Turnout as calculated by the House of Commons Library, is the total number of votes cast and not spoiled, divided by the size of the electorate.

Under section 13(b) of the Representation of the People Act 1985, a candidate gaining 5% or less of the vote share will forfeit their deposit.

Estimates of the 2019 general election result in new constituencies

BBC News, ITV News, Sky News and the Press Association have together produced estimates of the 2019 general election result as if the new constituencies recommended by the separate Parliamentary Boundary Commissions for England, Scotland, Wales and Northern Ireland had then been in existence.

Rallings & Thrasher, Professor David Denver (Scotland), Nicholas Whyte (NI) for Sky News, PA, BBC News and ITV News.

An explanation of the methods used and the electoral impact of the changes can be found in the linked document.