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Arfon
Arfon
Senedd county constituency; for the Senedd
	Arfon shown within the North Wales electoral region and the region shown within Wales
Current Senedd county constituency
Created	2007
Party	Plaid Cymru
MS	Siân Gwenllian
Preserved county	Gwynedd
Created from	Caernarfon and Conwy

Arfon is a constituency of the Senedd. It was created for the former Assembly's 2007 election. It elects one Member of the Senedd by the first past the post method of election. Also, however, it is one of nine constituencies in the North Wales electoral region, which elects four additional members, in addition to nine constituency members, to produce a degree of proportional representation for the region as a whole.

Boundaries

Map of current boundaries

The constituency had the boundaries of the Arfon Westminster constituency, entirely within the preserved county of Gwynedd, which came into use, also, for the 2010 United Kingdom general election. The new constituency merged areas currently within the Caernarfon constituency and the Conwy constituency. The Caernarfon constituency was entirely within the preserved county of Gwynedd. The Conwy constituency was partly a Gwynedd constituency and partly within the preserved county of Clwyd.

The North Wales region was created for the first Assembly election, in 1999. For the 2007 election, however, it had new boundaries. It includes the constituencies of Aberconwy, Alyn and Deeside, Arfon, Clwyd South, Clwyd West, Delyn, Vale of Clwyd, Wrexham and Ynys Môn.

Voting

In general elections for the Senedd, each voter has two votes. The first vote may be used to vote for a candidate to become the Member of the Senedd for the voter's constituency, elected by the first past the post system. The second vote may be used to vote for a regional closed party list of candidates. Additional member seats are allocated from the lists by the d'Hondt method, with constituency results being taken into account in the allocation.

Assembly Members and Members of the Senedd

	Member	Party
2007	constituency created; see Caernarfon and Conwy
2007	Alun Ffred Jones	Plaid Cymru
2016	Siân Gwenllian	Plaid Cymru

Elections

Elections in the 2020s

2021 Senedd election: Arfon^[1]
Party		Candidate	Constituency			Regional
Party		Candidate	Votes	%	±%	Votes	%	±%
	Plaid Cymru	Siân Gwenllian^[a]	13,760	63.3	+8.5	11,955	55.7	+5.4
	Labour	Iwan Wyn Jones	5,108	23.5	-10.5	5,254	24.5	+0.3
	Conservative	Tony Thomas	1,806	8.3	±0.0	1,925	9.0	+2.1
	Liberal Democrats	Calum Davies	642	3.0	+0.1	448	2.1	-0.8
	Reform UK	Andrew Haigh	350	1.6	New	188	0.9	New
	Independent	Martin Bristow	82	0.4	New
	Green					865	4.0	+0.5
	Abolish					403	1.9	-1.6
	Gwlad					227	1.1	New
	Freedom Alliance (UK)					72	0.3	New
	Communist					63	0.3	±0.0
	Propel					42	0.2	New
	Independent	Michelle Brown				14	0.1	New
	TUSC					13	0.1	New
Majority			8,652	39.8	+19.0
Turnout			21,478	50.92^[2]	0.0
	Plaid Cymru hold		Swing
Notes ^ Incumbent member for this constituency

Elections in the 2010s

Welsh Assembly Election 2016: Arfon
Party		Candidate	Constituency^[3]			Regional^[4]
Party		Candidate	Votes	%	±%	Votes	%	±%
	Plaid Cymru	Siân Gwenllian	10,962	54.8	-1.9	10,028	50.3	+2.8
	Labour	Sion Jones	6,800	34.0	+7.8	4,831	24.2	-0.3
	Conservative	Martin Peet	1,655	8.3	-4.2	1,369	6.9	-4.4
	Liberal Democrats	Sara Lloyd Williams	577	2.9	-1.6	582	2.9	-0.8
	UKIP					1,376	6.9	+4.0
	Green					706	3.5	-0.9
	Abolish					696	3.5	New
	Monster Raving Loony					160	0.8	New
	Association of Welsh Independents					94	0.5	New
	Communist					61	0.3	-0.2
	Mark Young - Independent					45	0.2	New
Majority			4,162	20.8	−9.7
Turnout			19,994	50.9	+7.5
	Plaid Cymru hold		Swing	-4.9

Welsh Assembly Election 2011: Arfon^[5]
Party		Candidate	Constituency			Regional^[6]
Party		Candidate	Votes	%	±%	Votes	%	±%
	Plaid Cymru	Alun Ffred Jones	10,024	56.7	+4.3	8,402	47.5	-6.6
	Labour	Christina Rees	4,630	26.2	-0.6	4,327	24.5	+1.2
	Conservative	Aled Davies	2,209	12.5	+3.0	1,994	11.3	+1.6
	Liberal Democrats	Rhys Jones	801	4.5	-2.8	653	3.7	-1.7
	Green					787	4.4	+0.3
	UKIP					516	2.9	+0.6
	Socialist Labour					480	2.7	+2.2
	BNP					283	1.6	-0.8
	Welsh Christian					103	0.6	-+0.2
	Communist					85	0.5	±0.0
	Weyman - Independent					59	0.3	New
Majority			5,394	30.5	+4.9
Turnout			17,664	43.4	−5.7
	Plaid Cymru hold		Swing	+2.4

Regional ballots rejected: 139^[7]

Elections in the 2000s

Welsh Assembly Election 2007: Arfon
Party		Candidate	Constituency			Regional^[8]
Party		Candidate	Votes	%	±%	Votes	%	±%
	Plaid Cymru	Alun Ffred Jones	10,260	52.4	N/A	10,042	54.1	N/A
	Labour	Martin Eaglestone	5,242	26.8	N/A	4,547	23.3	N/A
	Conservative	Gerry Frobisher	1,858	9.5	N/A	1,899	9.7	N/A
	Liberal Democrats	Mel ab Owain	1,424	7.3	N/A	1,054	5.4	N/A
	UKIP	Elwyn Williams	789	4.0	N/A	451	2.3	N/A
	Green					791	4.1	N/A
	BNP					460	2.4	New
	Socialist Labour					93	0.5	N/A
	Communist					88	0.5	N/A
	Welsh Christian					86	0.4	N/A
	CPA					11	0.1	N/A
Majority			5,018	25.6	N/A
Turnout			19,573	49.1	N/A
	Plaid Cymru win (new seat)