2013 Ynys Môn by-election

2013 Ynys Môn by-election
The Ynys Môn seat in the Welsh Assembly.; Triggered by vacation of seat by incumbent
	Map showing the Ynys Môn Assembly constituency within the North Wales electoral region within Wales.
AM before election; Ieuan Wyn Jones; Plaid Cymru	Subsequent AM ; Rhun ap Iorwerth; Plaid Cymru

A by-election for the Welsh Assembly constituency of Ynys Môn was held on 1 August 2013,^[1] The by-election was triggered following the resignation on 20 June 2013 of its sitting Assembly Member, Ieuan Wyn Jones.^[2]

The election was the third Assembly by-election to be held since its formation in 1999, and the first for over seven years (the previous contest being at Blaenau Gwent in June 2006).

Prior to the by-election, the governing Labour Party held exactly half the Assembly seats, meaning a gain for that party (who have held the equivalent seat in the House of Commons since 2001) would have given the Welsh government a two-seat majority.

Election

Six candidates were nominated for the election.^[3]^[4]^[5]

Result

Plaid Cymru held the seat with a greatly increased majority.

2013 Ynys Môn by-election
Party		Candidate	Votes	%	±%
	Plaid Cymru	Rhun ap Iorwerth	12,601	58.24	+16.8
	Labour	Tal Michael	3,435	15.88	−10.3
	UKIP	Nathan Gill	3,099	14.32	New
	Conservative	Neil Fairlamb	1,843	8.52	−20.7
	Socialist Labour	Kathrine Jones	348	1.61	New
	Liberal Democrats	Stephen Churchman	309	1.43	−1.8
Majority			9,166	42.34	+30.1
Turnout			21,635	42.4	−6.2
	Plaid Cymru hold		Swing	+13.58

Previous result

2011 Welsh Assembly election: Ynys Môn^[6]
Party		Candidate	Votes	%	±%
	Plaid Cymru	Ieuan Wyn Jones	9,969	41.4	+1.7
	Conservative	Paul Williams	7,032	29.2	+16.2
	Labour	Joe Lock	6,307	26.2	+8.8
	Liberal Democrats	Rhys Taylor	759	3.2	−0.2
Majority			2,937	12.2	−4.2
Turnout			24,067	48.6	−3.2
	Plaid Cymru hold		Swing	−7.3