Plaid Cymru Target Seats

Below are lists of Plaid Cymru target seats showing which constituencies can be most easily won from an opposing party relative to the latest elections.

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Plaid Cymru Target Seats 2024

Below is the list of Plaid Cymru target seats for the 2024 general election. The list is ordered from the smallest to the largest swing needed for the seat to change hands.

View Plaid Cymru held marginal seats vulnerable at the next general election.

(order by swing needed)

Rank		Region	Majority over PC	Percent Majority
1.	Ynys Mon	Wales	2,541	6.95%
2.	Caerfyrddin	Wales	4,529	8.49%
3.	Llanelli	Wales	7,976	18.17%
4.	Bangor Aberconwy	Wales	11,506	23.77%
5.	Caerphilly	Wales	13,153	29.18%
6.	Pontypridd	Wales	16,291	35.74%
7.	Newport West and Islwyn	Wales	18,042	37.17%
8.	Clwyd North	Wales	19,766	38.54%
9.	Neath and Swansea East	Wales	17,282	38.56%
10.	Bridgend	Wales	18,090	38.73%
11.	Torfaen	Wales	17,050	39.15%
12.	Alyn and Deeside	Wales	20,593	39.34%
13.	Wrexham	Wales	18,973	40.26%
14.	Gower	Wales	22,071	40.70%
15.	Cardiff West	Wales	21,632	41.65%
16.	Clwyd East	Wales	22,864	43.29%
17.	Brecon, Radnor and Cwm Tawe	Wales	22,676	43.38%
18.	Merthyr Tydfil and Aberdare	Wales	18,779	43.56%
19.	Rhondda and Ogmore	Wales	18,659	43.85%
20.	Aberafan Maesteg	Wales	19,518	43.94%

View Plaid Cymru held marginal seats vulnerable at the next general election.

Plaid Cymru Target Seats for the 2026 Senedd Election

Below is the list of Plaid Cymru target seats for the 2026 Senedd election. The list is ordered from the smallest to the largest swing needed for the seat to change hands.

View Plaid Cymru held marginal seats vulnerable at the next Senedd election.

(order by swing needed)

Rank		Region	Majority over PC	Percent Majority
1.	Aberconwy	North Wales	3,336	14.17%
2.	Carmarthen West and Pembrokeshire South	Mid and West Wales	4,625	14.61%
3.	Wrexham	North Wales	3,620	16.01%
4.	Caerphilly	South Wales East	5,078	17.56%
5.	Llanelli	Mid and West Wales	5,675	18.78%
6.	Neath	South Wales West	5,221	18.93%
7.	Pontypridd	South Wales Central	5,328	19.34%
8.	Preseli Pembrokeshire	Mid and West Wales	6,160	19.55%
9.	Clwyd West	North Wales	6,230	21.97%
10.	Rhondda	South Wales Central	5,497	23.43%
11.	Islwyn	South Wales East	6,032	24.64%
12.	Aberavon	South Wales West	5,745	25.91%
13.	Clwyd South	North Wales	6,354	26.25%
14.	Vale of Clwyd	North Wales	7,820	30.02%
15.	Swansea West	South Wales West	7,216	30.07%
16.	Montgomeryshire	Mid and West Wales	7,528	30.13%
17.	Bridgend	South Wales West	9,297	31.56%
18.	Blaenau Gwent	South Wales East	6,638	31.89%
19.	Cardiff West	South Wales Central	11,768	32.21%
20.	Brecon and Radnorshire	Mid and West Wales	10,666	33.21%
21.	Ogmore	South Wales West	8,165	33.33%
22.	Cardiff Central	South Wales Central	9,630	33.75%
23.	Vale of Glamorgan	South Wales Central	14,968	34.90%
24.	Gower	South Wales West	11,685	35.23%
25.	Cardiff South and Penarth	South Wales Central	13,196	36.27%

View Plaid Cymru held marginal seats vulnerable at the next Senedd election.

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2019 General Election Results