Boundary set for Wales (13 April 2010 - 30 May 2024) Turnouts

Constituency areas Establishing legislation General elections By-elections Majorities Vote shares of winning candidate Turnouts General election party performance

Constituency area	Election type	Polling date	Winning party	Valid vote count	Electorate	Turnout (valid vote count / electorate)
Aberavon	General election	6 May 2010	Lab	30,958	50,838	60.9%
Aberavon	General election	7 May 2015	Lab	31,523	49,821	63.3%
Aberavon	General election	8 June 2017	Lab	33,268	49,892	66.7%
Aberavon	General election	12 December 2019	Lab	31,598	50,750	62.3%
Aberconwy	General election	6 May 2010	Con	29,966	44,593	67.2%
Aberconwy	General election	7 May 2015	Con	30,148	45,525	66.2%
Aberconwy	General election	8 June 2017	Con	32,150	45,251	71.0%
Aberconwy	General election	12 December 2019	Con	31,865	44,699	71.3%
Alyn and Deeside	General election	6 May 2010	Lab	39,923	60,931	65.5%
Alyn and Deeside	General election	7 May 2015	Lab	41,314	62,016	66.6%
Alyn and Deeside	General election	8 June 2017	Lab	44,760	63,013	71.0%
Alyn and Deeside	General election	12 December 2019	Lab	43,008	62,789	68.5%
Arfon	General election	6 May 2010	PC	26,078	41,198	63.3%
Arfon	General election	7 May 2015	PC	26,837	40,492	66.3%
Arfon	General election	8 June 2017	PC	28,208	41,367	68.2%
Arfon	General election	12 December 2019	PC	29,074	42,215	68.9%
Blaenau Gwent	General election	6 May 2010	Lab	32,395	52,442	61.8%
Blaenau Gwent	General election	7 May 2015	Lab	31,683	51,335	61.7%
Blaenau Gwent	General election	8 June 2017	Lab	32,384	51,227	63.2%
Blaenau Gwent	General election	12 December 2019	Lab	30,219	50,739	59.6%
Brecon and Radnorshire	General election	6 May 2010	LD	38,845	53,589	72.5%
Brecon and Radnorshire	General election	7 May 2015	Con	40,074	54,441	73.6%
Brecon and Radnorshire	General election	8 June 2017	Con	41,334	56,010	73.8%
Brecon and Radnorshire	By-election	1 August 2019	LD	31,814	53,393	59.6%
Brecon and Radnorshire	General election	12 December 2019	Con	41,319	55,490	74.5%
Bridgend	General election	6 May 2010	Lab	38,347	58,700	65.3%
Bridgend	General election	7 May 2015	Lab	39,453	59,998	65.8%
Bridgend	General election	8 June 2017	Lab	43,255	62,185	69.6%
Bridgend	General election	12 December 2019	Con	42,236	63,303	66.7%
Caerphilly	General election	6 May 2010	Lab	38,692	62,122	62.3%
Caerphilly	General election	7 May 2015	Lab	40,283	63,603	63.3%
Caerphilly	General election	8 June 2017	Lab	41,297	64,381	64.1%
Caerphilly	General election	12 December 2019	Lab	40,117	63,166	63.5%
Cardiff Central	General election	6 May 2010	LD	36,151	61,165	59.1%
Cardiff Central	General election	7 May 2015	Lab	38,646	57,456	67.3%
Cardiff Central	General election	8 June 2017	Lab	40,367	59,288	68.1%
Cardiff Central	General election	12 December 2019	Lab	41,822	64,037	65.3%
Cardiff North	General election	6 May 2010	Con	47,630	65,553	72.7%
Cardiff North	General election	7 May 2015	Con	51,151	67,196	76.1%
Cardiff North	General election	8 June 2017	Lab	52,022	67,221	77.4%
Cardiff North	General election	12 December 2019	Lab	52,666	68,438	77.0%
Cardiff South and Penarth	General election	6 May 2010	Lab / Co-op	44,369	73,707	60.2%
Cardiff South and Penarth	General election	7 May 2015	Lab / Co-op	46,667	76,006	61.4%
Cardiff South and Penarth	General election	8 June 2017	Lab / Co-op	50,736	76,499	66.3%
Cardiff South and Penarth	General election	12 December 2019	Lab / Co-op	50,579	78,837	64.2%
Cardiff West	General election	6 May 2010	Lab	40,958	62,787	65.2%
Cardiff West	General election	7 May 2015	Lab	43,792	66,762	65.6%
Cardiff West	General election	8 June 2017	Lab	46,629	66,775	69.8%
Cardiff West	General election	12 December 2019	Lab	46,177	68,508	67.4%
Carmarthen East and Dinefwr	General election	6 May 2010	PC	38,011	52,385	72.6%
Carmarthen East and Dinefwr	General election	7 May 2015	PC	39,399	55,750	70.7%
Carmarthen East and Dinefwr	General election	8 June 2017	PC	41,029	55,976	73.3%
Carmarthen East and Dinefwr	General election	12 December 2019	PC	41,002	57,419	71.4%
Carmarthen West and South Pembrokeshire	General election	6 May 2010	Con	40,507	58,108	69.7%
Carmarthen West and South Pembrokeshire	General election	7 May 2015	Con	40,350	57,755	69.9%
Carmarthen West and South Pembrokeshire	General election	8 June 2017	Con	42,226	58,565	72.1%
Carmarthen West and South Pembrokeshire	General election	12 December 2019	Con	42,114	59,158	71.2%
Ceredigion	General election	6 May 2010	LD	38,258	59,882	63.9%
Ceredigion	General election	7 May 2015	LD	37,416	54,242	69.0%
Ceredigion	General election	8 June 2017	PC	39,767	54,262	73.3%
Ceredigion	General election	12 December 2019	PC	40,105	56,386	71.1%
Clwyd South	General election	6 May 2010	Lab	34,681	53,748	64.5%
Clwyd South	General election	7 May 2015	Lab	35,064	54,996	63.8%
Clwyd South	General election	8 June 2017	Lab	37,474	53,729	69.7%
Clwyd South	General election	12 December 2019	Con	36,306	53,919	67.3%
Clwyd West	General election	6 May 2010	Con	38,111	57,913	65.8%
Clwyd West	General election	7 May 2015	Con	38,028	58,644	64.8%
Clwyd West	General election	8 June 2017	Con	40,654	58,263	69.8%
Clwyd West	General election	12 December 2019	Con	40,203	57,714	69.7%
Cynon Valley	General election	6 May 2010	Lab	29,876	50,650	59.0%
Cynon Valley	General election	7 May 2015	Lab	30,472	51,422	59.3%
Cynon Valley	General election	8 June 2017	Lab	31,802	51,334	62.0%
Cynon Valley	General election	12 December 2019	Lab	30,236	51,134	59.1%
Delyn	General election	6 May 2010	Lab	36,984	53,470	69.2%
Delyn	General election	7 May 2015	Lab	37,457	53,639	69.8%
Delyn	General election	8 June 2017	Lab	39,418	54,090	72.9%
Delyn	General election	12 December 2019	Con	38,370	54,560	70.3%
Dwyfor Meirionnydd	General election	6 May 2010	PC	28,906	45,354	63.7%
Dwyfor Meirionnydd	General election	7 May 2015	PC	28,913	44,394	65.1%
Dwyfor Meirionnydd	General election	8 June 2017	PC	30,348	44,699	67.9%
Dwyfor Meirionnydd	General election	12 December 2019	PC	29,928	44,362	67.5%
Gower	General election	6 May 2010	Lab	41,671	61,696	67.5%
Gower	General election	7 May 2015	Con	42,758	61,820	69.2%
Gower	General election	8 June 2017	Lab	45,576	62,163	73.3%
Gower	General election	12 December 2019	Lab	44,482	61,762	72.0%
Islwyn	General election	6 May 2010	Lab / Co-op	34,684	54,866	63.2%
Islwyn	General election	7 May 2015	Lab / Co-op	35,401	55,697	63.6%
Islwyn	General election	8 June 2017	Lab / Co-op	36,093	56,256	64.2%
Islwyn	General election	12 December 2019	Lab / Co-op	34,350	55,423	62.0%
Llanelli	General election	6 May 2010	Lab	37,461	55,637	67.3%
Llanelli	General election	7 May 2015	Lab	38,574	59,314	65.0%
Llanelli	General election	8 June 2017	Lab	40,342	59,434	67.9%
Llanelli	General election	12 December 2019	Lab	38,233	60,518	63.2%
Merthyr Tydfil and Rhymney	General election	6 May 2010	Lab	32,076	54,715	58.6%
Merthyr Tydfil and Rhymney	General election	7 May 2015	Lab	32,715	61,716	53.0%
Merthyr Tydfil and Rhymney	General election	8 June 2017	Lab	33,545	55,463	60.5%
Merthyr Tydfil and Rhymney	General election	12 December 2019	Lab	32,246	56,322	57.3%
Monmouth	General election	6 May 2010	Con	46,519	64,538	72.1%
Monmouth	General election	7 May 2015	Con	47,462	62,248	76.2%
Monmouth	General election	8 June 2017	Con	49,734	64,909	76.6%
Monmouth	General election	12 December 2019	Con	50,217	67,098	74.8%
Montgomeryshire	General election	6 May 2010	Con	33,813	48,730	69.4%
Montgomeryshire	General election	7 May 2015	Con	33,757	48,690	69.3%
Montgomeryshire	General election	8 June 2017	Con	34,891	50,755	68.7%
Montgomeryshire	General election	12 December 2019	Con	34,214	48,997	69.8%
Neath	General election	6 May 2010	Lab	37,122	57,295	64.8%
Neath	General election	7 May 2015	Lab	37,135	56,097	66.2%
Neath	General election	8 June 2017	Lab / Co-op	38,285	55,862	68.5%
Neath	General election	12 December 2019	Lab / Co-op	36,756	56,419	65.1%
Newport East	General election	6 May 2010	Lab	34,448	54,437	63.3%
Newport East	General election	7 May 2015	Lab	35,108	56,015	62.7%
Newport East	General election	8 June 2017	Lab	36,820	57,233	64.3%
Newport East	General election	12 December 2019	Lab	36,282	58,554	62.0%
Newport West	General election	6 May 2010	Lab	39,720	62,111	64.0%
Newport West	General election	7 May 2015	Lab	40,347	62,137	64.9%
Newport West	General election	8 June 2017	Lab	43,438	64,399	67.5%
Newport West	By-election	4 April 2019	Lab	23,515	63,623	37.0%
Newport West	General election	12 December 2019	Lab	43,433	66,657	65.2%
Ogmore	General election	6 May 2010	Lab	34,650	55,527	62.4%
Ogmore	General election	7 May 2015	Lab	35,250	55,572	63.4%
Ogmore	By-election	5 May 2016	Lab	23,532	55,027	42.8%
Ogmore	General election	8 June 2017	Lab	37,204	57,125	65.1%
Ogmore	General election	12 December 2019	Lab	35,390	57,581	61.5%
Pontypridd	General election	6 May 2010	Lab	36,671	58,205	63.0%
Pontypridd	General election	7 May 2015	Lab	37,882	58,940	64.3%
Pontypridd	General election	8 June 2017	Lab	39,894	60,564	65.9%
Pontypridd	General election	12 December 2019	Lab	39,060	60,327	64.7%
Preseli Pembrokeshire	General election	6 May 2010	Con	39,602	57,400	69.0%
Preseli Pembrokeshire	General election	7 May 2015	Con	40,556	57,291	70.8%
Preseli Pembrokeshire	General election	8 June 2017	Con	42,197	58,554	72.1%
Preseli Pembrokeshire	General election	12 December 2019	Con	42,419	59,606	71.2%
Rhondda	General election	6 May 2010	Lab	31,072	51,554	60.3%
Rhondda	General election	7 May 2015	Lab	31,538	51,811	60.9%
Rhondda	General election	8 June 2017	Lab	32,936	50,514	65.2%
Rhondda	General election	12 December 2019	Lab	29,642	50,262	59.0%
Swansea East	General election	6 May 2010	Lab	32,676	59,823	54.6%
Swansea East	General election	7 May 2015	Lab	33,618	58,011	58.0%
Swansea East	General election	8 June 2017	Lab	35,159	58,521	60.1%
Swansea East	General election	12 December 2019	Lab	33,579	58,450	57.4%
Swansea West	General election	6 May 2010	Lab / Co-op	35,593	61,334	58.0%
Swansea West	General election	7 May 2015	Lab / Co-op	35,156	58,776	59.8%
Swansea West	General election	8 June 2017	Lab / Co-op	37,282	56,892	65.5%
Swansea West	General election	12 December 2019	Lab / Co-op	35,830	57,078	62.8%
Torfaen	General election	6 May 2010	Lab	37,640	61,183	61.5%
Torfaen	General election	7 May 2015	Lab	37,937	61,896	61.3%
Torfaen	General election	8 June 2017	Lab	38,429	61,839	62.1%
Torfaen	General election	12 December 2019	Lab	37,176	62,330	59.6%
Vale of Clwyd	General election	6 May 2010	Lab	35,534	55,781	63.7%
Vale of Clwyd	General election	7 May 2015	Con	35,261	56,505	62.4%
Vale of Clwyd	General election	8 June 2017	Lab	38,684	56,890	68.0%
Vale of Clwyd	General election	12 December 2019	Con	37,213	56,649	65.7%
Vale of Glamorgan	General election	6 May 2010	Con	48,667	70,211	69.3%
Vale of Glamorgan	General election	7 May 2015	Con	51,293	72,794	70.5%
Vale of Glamorgan	General election	8 June 2017	Con	53,718	73,959	72.6%
Vale of Glamorgan	General election	12 December 2019	Con	54,807	76,508	71.6%
Wrexham	General election	6 May 2010	Lab	32,976	50,872	64.8%
Wrexham	General election	7 May 2015	Lab	32,719	50,992	64.2%
Wrexham	General election	8 June 2017	Lab	35,092	49,881	70.4%
Wrexham	General election	12 December 2019	Con	33,532	49,737	67.4%
Ynys Môn	General election	6 May 2010	Lab	34,444	50,075	68.8%
Ynys Môn	General election	7 May 2015	Lab	34,926	49,939	69.9%
Ynys Môn	General election	8 June 2017	Lab	37,367	52,921	70.6%
Ynys Môn	General election	12 December 2019	Con	36,552	51,925	70.4%