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%