Marginal constituencies in the 2010 United Kingdom general election

This is a list of marginal seats in the United Kingdom after the results in the 2010 General Election.

Most marginal constituencies

Ten most marginal seats (by majority) from 2010 General Election.

Rank Constituency MP Elected First Party Second Party Majority %
1 Fermanagh and South Tyrone Michelle Gildernew Sinn Féin Independent 4 0.0%
2 Hampstead and Kilburn Glenda Jackson Labour Conservative 42 0.1%
3 North Warwickshire Daniel Byles Conservative Labour 54 0.1%
4 Camborne and Redruth George Eustice Conservative Liberal Democrat 66 0.2%
5 Bolton West Julie Hilling Labour Conservative 92 0.2%
5 Thurrock Jackie Doyle-Price Conservative Labour 92 0.2%
7 Oldham East and Saddleworth* Phil Woolas Labour Liberal Democrat 103 0.2%
8 Hendon Matthew Offord Conservative Labour 106 0.2%
9 Sheffield Central Paul Blomfield Labour Liberal Democrat 165 0.4%
10 Solihull Lorely Burt Liberal Democrat Conservative 175 0.3%

Conservative marginals

Conservative - Labour marginals

Constituencies where the Conservative Party holds a marginal lead over the Labour Party:

Constituency MP Elected Majority %
North Warwickshire Daniel Byles 54 0.1%
Thurrock Jackie Doyle-Price 92 0.2%
Hendon Matthew Offord 106 0.2%
Cardiff North Jonathan Evans 194 0.4%
Sherwood Mark Spencer 214 0.4%
Stockton South James Wharton 332 0.7%
Lancaster and Fleetwood Eric Ollerenshaw 333 0.8%
Broxtowe Anna Soubry 389 0.7%
Amber Valley Nigel Mills 536 1.2%
Wolverhampton South West Paul Uppal 691 1.7%
Waveney Peter Aldous 769 1.5%
Carlisle John Stevenson 853 2.0%
Morecambe and Lunesdale David Morris 866 2.0%
Weaver Vale Graham Evans 991 2.3%
Lincoln Karl McCartney 1,058 2.3%
Plymouth, Sutton and Devonport Oliver Colvile 1,149 2.6%
Stroud Neil Carmichael 1,299 2.2%
Brighton, Kemptown Simon Kirby 1,328 3.1%
Bedford Richard Fuller 1,353 3.0%
Dewsbury Simon Reevell 1,526 2.8%
Keighley Kris Hopkins 2,940 6.2%
Worcester Robin Walker 2,982 6.1%
Cannock Chase Aidan Burley 3,195 7.0%
Aberconwy Guto Bebb 3,398 11.3%
Harrow East Bob Blackman 3,403 7.1%
Carmarthen West and South Pembrokeshire Simon Hart 3,423 8.5%
Warwick and Leamington Chris White 3,513 7.2%
South Swindon Robert Buckland 3,544 7.5%
Stevenage Stephen McPartland 3,578 8.0%
Pendle Andrew Stephenson 3,585 8.0%
Ealing Central and Acton Angie Bray 3,716 7.9%
Loughborough Nicky Morgan 3,744 7.1%
Dudley South Chris Kelly 3,856 10.1%
Norwich North Chloe Smith 3,901 9.2%
Dumfriesshire, Clydesdale and Tweeddale David Mundell 4,194 9.1%
Great Yarmouth Brandon Lewis 4,276 9.9%
Cleethorpes Martin Vickers 4,298 9.6%
Vale of Glamorgan Alun Cairns 4,307 8.8%
Rossendale and Darwen Jake Berry 4,493 9.5%
Elmet and Rothwell Alec Shelbrooke 4,521 8.1%
Preseli Pembrokeshire Stephen Crabb 4,605 11.6%
High Peak Andrew Bingham 4,677 9.3%
Peterborough Stewart Jackson 4,861 10.8%
North East Somerset Jacob Rees-Mogg 4,914 9.6%
Harlow Robert Halfon 4,925 11.2%

Conservative - Liberal Democrat marginals

Constituencies where the Conservative Party holds a marginal lead over the Liberal Democrats:

Constituency MP Elected Majority %
Camborne and Redruth George Eustice 66 0.2%
Oxford West and Abingdon Nicola Blackwood 176 0.3%
Truro and Falmouth Sarah Newton 435 0.9%
Newton Abbot Anne Morris 523 1.1%
Harrogate and Knaresborough Andrew Jones 1,039 2.0%
Montgomeryshire Glyn Davies 1,184 3.5%
Watford Richard Harrington 1,425 2.6%
St Albans Anne Main 2,305 4.4%
Hereford and South Herefordshire Jesse Norman 2,481 5.1%
Weston-super-Mare John Penrose 2,691 5.1%
Torridge and West Devon Geoffrey Cox 2,957 5.4%
Winchester Steve Brine 3,048 5.4%
South East Cornwall Sheryll Murray 3,220 6.5%
Bristol North West Charlotte Leslie 3,274 6.5%
York Outer Julian Sturdy 3,688 6.9%
West Dorset Oliver Letwin 3,923 6.8%
Richmond Park Zac Goldsmith 4,091 6.9%
Romsey and Southampton North Caroline Nokes 4,156 8.5%
Colne Valley Jason McCartney 4,837 8.7%
Totnes Sarah Wollaston 4,927 10.3%

Other Conservative marginals

Constituencies where the Conservative Party holds a marginal lead over another party:

Constituency MP Elected First Party Second Party Majority %
Wyre Forest Mark Garnier Conservative Health Concern 2,643 5.2%

Liberal Democrat marginals

Liberal Democrat - Conservative marginals

Constituencies where the Liberal Democrats holds a marginal lead over the Conservative Party:

Constituency MP Elected Majority %
Solihull Lorely Burt 175 0.3%
Mid Dorset and North Poole Annette Brooke 269 0.6%
Wells Tessa Munt 800 1.4%
St Austell and Newquay Stephen Gilbert 1,312 2.8%
Sutton and Cheam Paul Burstow 1,608 3.3%
St Ives Andrew George 1,719 3.7%
Somerton and Frome David Heath 1,817 3.0%
Chippenham Duncan Hames 2,470 4.7%
Berwick-upon-Tweed Alan Beith 2,690 7.0%
North Cornwall Dan Rogerson 2,981 6.4%
Cheadle Mark Hunter 3,272 6.2%
Argyll and Bute Alan Reid 3,431 7.6%
Eastbourne Stephen Lloyd 3,435 6.6%
West Aberdeenshire and Kincardine Robert Smith 3,684 8.2%
Brecon and Radnorshire Roger Williams 3,747 9.6%
Eastleigh Chris Huhne 3,864 7.2%
Taunton Deane Jeremy Browne 3,993 6.9%
Torbay Adrian Sanders 4,078 8.3%
Cheltenham Martin Horwood 4,920 9.3%

Liberal Democrat - Labour marginals

Constituencies where the Liberal Democrats holds a marginal lead over the Labour Party:

Constituency MP Elected Majority %
Norwich South Simon Wright 310 0.7%
Bradford East David Ward 365 0.9%
Brent Central Sarah Teather 1,345 3.0%
Burnley Gordon Birtwistle 1,818 4.3%
Manchester, Withington John Leech 1,894 4.2%
East Dunbartonshire Jo Swinson 2,184 4.6%
Birmingham, Yardley John Hemming 3,002 7.3%
Edinburgh West Mike Crockart 3,803 8.2%
Cardiff Central Jenny Willott 4,576 12.7%
Caithness, Sutherland and Easter Ross John Thurso 4,826 16.8%

Labour marginals

Labour - Conservative marginals

Constituencies where the Labour Party holds a marginal lead over the Conservative Party:

Constituency MP Elected Majority %
Hampstead and Kilburn Glenda Jackson 42 0.1%
Bolton West Julie Hilling 92 0.2%
Southampton, Itchen John Denham 192 0.4%
Wirral South Alison McGovern 531 1.3%
Derby North Chris Williamson 613 1.4%
Dudley North Ian Austin 649 1.7%
Great Grimsby Austin Mitchell 714 2.2%
Telford David Wright 978 2.4%
Walsall North David Winnick 990 2.7%
Morley and Outwood Ed Balls 1,101 2.3%
Birmingham, Edgbaston Gisela Stuart 1,274 3.1%
Halifax Linda Riordan 1,472 3.4%
Newcastle-under-Lyme Paul Farrelly 1,552 3.6%
Plymouth, Moor View Alison Seabeck 1,588 3.8%
Wakefield Mary Creagh 1,613 3.6%
Eltham Clive Efford 1,663 4.0%
Middlesbrough South and East Cleveland Tom Blenkinsop 1,677 3.6%
Walsall South Valerie Vaz 1,755 4.3%
Nottingham South Lilian Greenwood 1,772 4.3%
Blackpool South Gordon Marsden 1,852 5.3%
Gedling Vernon Coaker 1,859 3.9%
Westminster North Karen Buck 2,126 5.4%
Bridgend Madeleine Moon 2,263 5.9%
Delyn David Hanson 2,272 6.1%
Luton South Gavin Shuker 2,329 5.5%
Southampton, Test Alan Whitehead 2,413 5.5%
North East Derbyshire Natascha Engel 2,445 5.2%
Wolverhampton North East Emma Reynolds 2,484 7.1%
Vale of Clwyd Chris Ruane 2,509 7.1%
Tooting Sadiq Khan 2,524 5.0%
Scunthorpe Nick Dakin 2,549 6.9%
Chorley Lindsay Hoyle 2,593 5.2%
Dagenham and Rainham Jon Cruddas 2,630 5.9%
Gower Martin Caton 2,683 6.4%
Exeter Ben Bradshaw 2,721 5.2%
Stalybridge and Hyde Jonathan Reynolds 2,744 6.7%
Birmingham, Northfield Richard Burden 2,782 6.7%
Clwyd South Susan Jones 2,834 8.2%
Alyn and Deeside Mark Tami 2,919 7.3%
Penistone and Stocksbridge Angela Smith 3,049 6.6%
Hyndburn Graham Jones 3,090 7.2%
Harrow West Gareth Thomas 3,143 6.8%
Birmingham, Erdington Jack Dromey 3,277 9.2%
Bury South Ivan Lewis 3,292 6.8%
Darlington Jenny Chapman 3,388 7.9%
Birmingham, Selly Oak Stephen McCabe 3,482 7.5%
Newport West Paul Flynn 3,544 8.9%
Hammersmith Andy Slaughter 3,549 7.5%
Don Valley Caroline Flint 3,595 8.3%
Bristol East Kerry McCarthy 3,722 8.3%
Copeland Jamie Reed 3,833 9.0%
Coventry South Jim Cunningham 3,845 8.4%
Sefton Central Bill Esterson 3,862 8.0%
Leicester West Liz Kendall 4,017 11.2%
Bolton North East David Crausby 4,084 9.4%
Stoke-on-Trent South Robert Flello 4,130 10.4%
Ellesmere Port and Neston Andrew Miller 4,331 9.8%
Worsley and Eccles South Barbara Keeley 4,337 10.4%
West Lancashire Rosie Cooper 4,343 9.0%
Batley and Spen Mike Wood 4,406 8.6%
Huddersfield Barry Sheerman 4,472 11.0%
Leeds North East Fabian Hamilton 4,545 9.6%
Workington Tony Cunningham 4,575 11.7%
Bradford South Gerry Sutcliffe 4,622 12.2%
Feltham and Heston* Alan Keen 4,658 9.6%
Cardiff South and Penarth* Alun Michael 4,709 10.6%
Cardiff West Kevin Brennan 4,751 11.6%

Labour - Liberal Democrat marginals

Constituencies where the Labour Party holds a marginal lead over the Liberal Democrats:

Constituency MP Elected Majority %
Oldham East and Saddleworth* Phil Woolas 103 0.2%
Sheffield Central Paul Blomfield 165 0.4%
Ashfield Gloria De Piero 192 0.4%
Edinburgh South Ian Murray 316 0.7%
Swansea West Geraint 504 1.4%
Chesterfield Toby Perkins 549 1.2%
Kingston upon Hull North Diana Johnson 641 1.9%
Rochdale Simon Danczuk 889 1.9%
Newport East Jessica Morden 1,650 4.8%
Edinburgh North and Leith Mark Lazarowicz 1,724 3.6%
Pontypridd Owen Smith 2,785 7.6%
City of Durham Roberta Blackman-Woods 3,067 6.6%
Streatham Chuka Umunna 3,259 7.0%
Newcastle upon Tyne North Catherine McKinnell 3,414 7.8%
Aberdeen South Anne Begg 3,506 8.1%
Islington South and Finsbury Emily Thornberry 3,569 8.2%
Wrexham Ian Lucas 3,658 11.1%
Glasgow North Ann McKechin 3,898 13.2%
Merthyr Tydfil and Rhymney Dai Havard 4,056 12.6%
Newcastle upon Tyne East Nicholas Brown 4,453 11.8%
Oxford East Andrew Smith 4,581 8.9%
Bristol South Dawn Primarolo 4,734 9.8%

Other Labour marginals

Constituencies where the Labour Party holds a marginal lead over another party:

Constituency MP Elected First Party Second Party Majority %
Ynys Môn Albert Owen Labour Plaid Cymru 2,461 7.1%
Birmingham, Hall Green Roger Godsiff Labour Respect 3,799 7.8%
Llanelli Nia Griffith Labour Plaid Cymru 4,701 12.5%

Other Parties

Other Parties marginal seats by majority:

Alliance Party

Constituency MP Elected First Party Second Party Majority %
Belfast East Naomi Long Alliance DUP 1,533 4.4%

Democratic Unionist Party

Constituency MP Elected First Party Second Party Majority %
South Antrim William McCrea DUP UCU 1,183 3.5%
Belfast North Nigel Dodds DUP Sinn Féin 2,224 6.0%
Upper Bann David Simpson DUP UCU 3,361 8.1%

Green Party

Constituency MP Elected First Party Second Party Majority %
Brighton, Pavilion Caroline Lucas Green Labour 1,252 2.4%

Plaid Cymru

Constituency MP Elected First Party Second Party Majority %
Arfon Hywel Williams Plaid Cymru Labour 1,455 5.6%
Carmarthen East and Dinefwr Jonathan Edwards Plaid Cymru Labour 3,481 9.2%

Social Democratic Labour Party

Constituency MP Elected First Party Second Party Majority %
Foyle Mark Durkan SDLP Sinn Féin 4,824 12.7%

Sinn Fein

Constituency MP Elected First Party Second Party Majority %
Fermanagh and South Tyrone Michelle Gildernew Sinn Féin Independent 4 0.0%

Scottish National Party

Constituency MP Elected First Party Second Party Majority %
Dundee East Stewart Hosie SNP Labour 1,821 4.5%
Na h-Eileanan an Iar Angus MacNeil SNP Labour 1,885 12.8%
Angus Mike Weir SNP Conservative 3,282 8.6%
Banff and Buchan Eilidh Whiteford SNP Conservative 4,027 10.5%
Perth and North Perthshire Pete Wishart SNP Conservative 4,379 9.1%
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