Boundaries
Map of current boundaries
The constituency was created for the first election to the Assembly, in 1999, with the name and boundaries of the Alyn and Deeside Westminster constituency. It is entirely within the preserved county of Clwyd. For the 2007 Assembly election, there were minor changes to the constituency's boundaries. For Westminster purposes, the same boundary changes became effective at the 2010 United Kingdom general election.
When created in 1999, the North Wales region included the constituencies of Alyn and Deeside, Caernarfon, Clwyd West, Clwyd South, Conwy, Delyn, Vale of Clwyd, Wrexham and Ynys Môn (Anglesey).
Since the 2007 election, the region includes Aberconwy, Alyn and Deeside, Arfon, Clwyd South, Clwyd West, Delyn, Vale of Clwyd, Wrexham and Ynys Môn (Anglesey).
Alyn and Deeside is a parliamentary constituency represented in the House of Commons of the Parliament of the United Kingdom. The constituency was created in 1983, and it elects one Member of Parliament (MP) by the first-past-the-post method of election.
Delyn was a constituency in the House of Commons of the UK Parliament from 1983 to 2024.
Wrexham is a constituency of the Senedd. 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.
Clwyd South is a constituency of the Senedd. 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.
North Wales is an electoral region of the Senedd, consisting of nine constituencies. The region elects thirteen members, nine directly elected constituency members and four additional members. The electoral region was first used in the 1999 Welsh Assembly election, when the National Assembly for Wales was created.
Caernarfon was a constituency of the National Assembly for Wales from 1999 to 2007. It was one of nine constituencies in the North Wales electoral region until the abolition of the seat. The constituency elected one Assembly Member by the first past the post method, while the North Wales region elected four additional members, to produce a degree of proportional representation for the area as a whole.
Clwyd West is a constituency of the Senedd. 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.
Conwy was a constituency of the National Assembly for Wales from 1999 to 2007. It elected one Assembly Member by the first past the post method of election. It was also one of nine constituencies in the North Wales electoral region, which elected four additional members, in addition to nine constituency members, to produce a degree of proportional representation for the region as a whole.
Delyn is a constituency of the Senedd. 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.
The Vale of Clwyd is a constituency of the Senedd. 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.
Ynys Môn is a constituency of the Senedd. It elects one Member of the Senedd by the first past the post method of election. Ynys Môn is also 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.
Aberconwy is a constituency of the Senedd. First created for the former Assembly's 2007 election. It elects one Member of the Senedd by the first past the post method of election. 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.
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.
North Wales was a European Parliament constituency which roughly covered the geographic region of North Wales, from 1979 until 1999. It was held by the Conservative Party from 1979 until 1989, during which time it was their only seat in Wales.
The 2015 United Kingdom general election in Wales was held on 7 May 2015 and all 40 seats in Wales were contested. The election for each seat was conducted on the basis of first-past-the-post.
The 2017 United Kingdom general election in Wales was held on 8 June 2017; all 40 seats in Wales were contested. The election for each seat was conducted on the basis of first-past-the-post.
The Alyn and Deeside by-election, 2018 is a by-election that took place in the National Assembly for Wales constituency of Alyn and Deeside on Tuesday 6 February 2018, following the death of incumbent Labour AM Carl Sargeant on 7 November 2017.
Jack Sargeant is a Welsh Labour Party politician serving as Minister for Culture, Skills and Social Partnership since July 2024, and a Member of the Senedd (MS). He represents the Alyn and Deeside constituency, where he succeeded his father Carl Sargeant following the February 2018 by-election.
These are the election results from United Kingdom general elections based on the electoral regional boundaries used by the Senedd, for the Senedd electoral region of North Wales. Since the 1997 general election, this grouping of constituencies into this unofficial region have elected nine Members of Parliament to the House of Commons of the United Kingdom.
