In the United Kingdom, the boundary commissions are non-departmental public bodies responsible for determining the boundaries of parliamentary constituencies for elections to the House of Commons. There are four boundary commissions: one each for England, Scotland, Wales and Northern Ireland.
The Highlands and Islands is one of the eight electoral regions of the Scottish Parliament, created in 1999. Eight of the parliament's first past the post constituencies are sub-divisions of the region and it elects seven of the 56 additional-member Members of the Scottish Parliament (MSPs).
The Scottish Parliament (Holyrood), created by the Scotland Act 1998, has used a system of constituencies and electoral regions since the first general election in 1999.
In the United Kingdom (UK), each of the electoral areas or divisions called constituencies elects one member to the House of Commons.
Caithness, Sutherland and Easter Ross was a constituency of the Scottish Parliament (Holyrood), in use between 1999 and 2011. It elected one Member of the Scottish Parliament (MSP) by the first past the post method of election. Also, however, it was one of eight constituencies in the Highlands and Islands electoral region, which elects seven additional members, in addition to eight constituency MSPs, to produce a form of proportional representation for the region as a whole.
As a result of the Fifth Periodical Review of the Boundary Commission for Scotland, Scotland is covered by 59 constituencies of the House of Commons of the United Kingdom Parliament: 19 burgh constituencies and 40 county constituencies. These constituencies were used from the 2005 to the 2019 general elections, and will be replaced by new constituencies at the next election.
The Parliament of the United Kingdom currently has 650 parliamentary constituencies across the constituent countries, each electing a single member of parliament (MP) to the House of Commons by the plurality voting system, ordinarily every five years. Voting last took place in all 650 of those constituencies at the United Kingdom general election on 12 December 2019.
Orkney is a constituency of the Scottish Parliament (Holyrood) covering the council area of Orkney. It elects one Member of the Scottish Parliament (MSP) by the first past the post method of election. It is also one of eight constituencies in the Highlands and Islands electoral region, which elects seven additional members, in addition to the eight constituency MSPs, to produce a form of proportional representation for the region as a whole.
Shetland is a constituency of the Scottish Parliament (Holyrood) covering the council area of Shetland. It elects one Member of the Scottish Parliament (MSP) by the first past the post method of election. It is also one of eight constituencies in the Highlands and Islands electoral region, which elects seven additional members, in addition to the eight constituency MSPs, to produce a form of proportional representation for the region as a whole.
Scottish Westminster constituencies were Scottish constituencies of the House of Commons of the Parliament of Great Britain, normally at the Palace of Westminster, from 1708 to 1801, and have been constituencies of the House of Commons of the Parliament of the United Kingdom, also at Westminster, since 1801. Constituency boundaries have changed on various occasions, and are now subject to both periodical and ad hoc reviews of the Boundary Commission for Scotland.
The Fifth Periodic Review of Westminster constituencies was undertaken between 2000 and 2007 by the four boundary commissions for England, Scotland, Wales and Northern Ireland for the UK Parliament. The changes for England, Wales and Northern Ireland took effect at the 2010 United Kingdom general election; that for Scotland took effect at the 2005 election. All of the recommendations were approved.
The 2013 Periodic Review of Westminster constituencies, also known as the Sixth Review, or just boundary changes, was an ultimately unfruitful cycle of the process by which constituencies of the House of Commons of the United Kingdom are reviewed and redistributed. The four UK boundary commissions carried out their reviews between 2011 and 2013, but their recommendations were not taken up by the government and instead the 2018 Periodic Review of Westminster constituencies was carried out from 2016 to 2018. That review was also not implemented and its results were formally laid aside in 2020.
The island groups of Orkney, Shetland and the Western Isles are all currently regions of Scotland. Their constitutional status has periodically been discussed, for example during the Scottish independence referendum campaign. Currently, they are council areas with the same constitutional status as the other 29 local government areas. The three island councils are the only local authorities among the 32 in the country where independent councillors form a majority.
The 2023 Periodic Review of Westminster constituencies was the most recent cycle of the process to redraw the constituency map for the House of Commons. The new constituency borders were approved by the Privy Council on 15 November 2023 and came into law on 29 November 2023.
The 2022 Scottish local elections were held on 5 May 2022, as part of the 2022 United Kingdom local elections. All 1,226 seats across all 32 Scottish local authorities were up for election and voter turnout was 44.8%.
The 2018 Periodic Review of Westminster constituencies was an ultimately unfruitful cycle of the process by which constituencies of the House of Commons of the United Kingdom are reviewed and redistributed. The four UK boundary commissions carried out their reviews between 2016 and 2018, but their recommendations were not taken up by the government and were formally laid aside in 2020.
This article covers the timeline of the most recent cycle of the process to redraw the constituency map for the House of Commons, namely the 2023 Periodic Review of Westminster constituencies. The new constituency borders came into law on 29 November 2023. For a summary of the outcome of the review, see 2023 Periodic Review of Westminster constituencies.
