Wide-ranging changes to constituencies which will see Scotland’s MPs cut from 59 to 53 will be announced on Thursday.
Some senior politicians are expected to find their seats are due to be axed under the plans, which form part of a package aimed at reducing the total number of Westminster MPs from 650 to 600 and minimising variations in the size of electorates.
Constituencies should be within 5% of the UK electoral average or “quota” of 74,769. In other words, each seat should be no smaller than 71,031 voters and no larger than 78,507.
But there are exceptions to this rule – in the case of the Scottish island constituencies of Orkney & Shetland (electorate 33,229) and Na h-Eileanan an Iar (The Western Isles) (20,877), and where a constituency is larger than 12,000 square kilometres.
The initial proposals being unveiled by the Boundary Commission for Scotland will be studied closely to assess the implications for MPs.
Significant changes are in store as the electorate figures being used for the review show that only 11 of the 57 seats excluding the two exempted island seats are within the set range, while five are above it and the remaining 41 are below.
The SNP will be hardest hit as it won 56 of the current 59 Scottish seats at the 2015 general election – but analysts will also be trying to assess whether the proposed changes will threaten the single seats each held by Labour and the Conservatives.
The shake-up will be implemented for the UK general election due in 2020 – but its full impact will not be known until experts have been able to analyse the revised proposals in early 2018 and the final proposals in October 2018.
The Westminster constituencies review has no direct implications for Scottish Parliament constituencies, which will be the subject of a separate review by the Scotland Boundary Commission due to start in 2018.
Scotland’s constituencies with sitting MPs and parties, and electorates as at December 2015
Aberdeen North, Kirsty Blackman (SNP) 62,280
Aberdeen South, Callum McCaig (SNP) 64,274
Aberdeenshire West & Kincardine, Stuart Donaldson (SNP) 72,327
Airdrie & Shotts, Neil Gray (SNP) 63,552
Angus, Mike Weir (SNP) 62,649
Argyll & Bute, Brendan O’Hara (SNP) 65,944
Ayr, Carrick & Cumnock, Corri Wilson (SNP) 69,299
Ayrshire Central, Philippa Whitford (SNP) 66,870
Ayrshire North & Arran, Patricia Gibson (SNP) 70,779
Banff & Buchan, Eilidh Whiteford (SNP) 67,153
Berwickshire, Roxburgh & Selkirk, Calum Kerr (SNP) 70,565
Caithness, Sutherland & Easter Ross, Paul Monaghan (SNP) 45,898
Coatbridge, Chryston & Bellshill, Phil Boswell (SNP) 70,068
Cumbernauld, Kilsyth & Kirkintilloch East, Stuart McDonald (SNP) 65,097
Dumfries & Galloway, Richard Arkless (SNP) 72,327
Dumfriesshire, Clydesdale & Tweeddale, David Mundell (C) 65,739
Dunbartonshire East, John Nicolson (SNP) 65,362
Dunbartonshire West, Martin Docherty (SNP) 66,725
Dundee East, Stewart Hosie (SNP) 65,007
Dundee West, Chris Law (SNP) 60,913
Dunfermline & Fife West, Douglas Chapman (SNP) 73,965
East Kilbride, Strathaven & Lesmahagow, Lisa Cameron (SNP) 79,311
East Lothian, George Kerevan (SNP) 76,153
Edinburgh East, Tommy Sheppard (SNP) 60,452
Edinburgh North & Leith, Deirdre Brock (SNP) 72,954
Edinburgh South West, Joanna Cherry (SNP) 66,458
Edinburgh South, Ian Murray (Lab) 60,328
Edinburgh West, Michelle Thomson (Ind) 68,472
Falkirk, John McNally (SNP) 80,755
Fife North East, Stephen Gethins (SNP) 56,716
Glasgow Central, Alison Thewliss (SNP) 64,307
Glasgow East, Natalie McGarry (Ind) 66,934
Glasgow North East, Anne McLaughlin (SNP) 60,671
Glasgow North West, Carol Monaghan (SNP) 65,762
Glasgow North, Patrick Grady (SNP) 54,699
Glasgow South West, Chris Stephens (SNP) 63,699
Glasgow South, Stewart McDonald (SNP) 70,642
Glenrothes, Peter Grant (SNP) 65,584
Gordon, Alex Salmond (SNP) 77,836
Inverclyde, Ronnie Cowan (SNP) 56,956
Inverness, Nairn, Badenoch & Strathspey, Drew Hendry (SNP) 74,354
Kilmarnock & Loudoun, Alan Brown (SNP) 71,195
Kirkcaldy & Cowdenbeath, Roger Mullin (SNP) 71,698
Lanark & Hamilton East, Angela Crawley (SNP) 75,761
Linlithgow & Falkirk East, Martyn Day (SNP) 83,593
Livingston, Hannah Bardell (SNP) 78,737
Midlothian, Owen Thompson (SNP) 65,308
Moray, Angus Robertson (SNP) 69,405
Motherwell & Wishaw, Marion Fellows (SNP) 67,612
Na h-Eileanan an Iar, Angus MacNeil (SNP) 20,887
Ochil & Perthshire South, Tasmina Ahmed-Sheikh (SNP) 74,680
Orkney & Shetland, Alistair Carmichael (LD) 33,229
Paisley & Renfrewshire North, Gavin Newlands (SNP) 64,246
Paisley & Renfrewshire South, Mhairi Black (SNP) 58,803
Perth & Perthshire North, Pete Wishart (SNP) 69,964
Renfrewshire East, Kirsten Oswald (SNP) 67,706
Ross, Skye & Lochaber, Ian Blackford (SNP) 51,817
Rutherglen & Hamilton West, Margaret Ferrier (SNP) 78,671
Stirling, Steven Paterson (SNP) 63,704
Total Scotland electorate: 3,896,852
