Constituencies of the Parliament of the United Kingdom

The Parliament of the United Kingdom currently has 650 parliamentary constituencies across the constituent countries (England, Scotland, Wales, and Northern Ireland), each electing a single member of parliament (MP) to the House of Commons by the plurality (first past the post) 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.

United Kingdom parliamentary constituencies
Constituencies after the 2023 Periodic Review
Category	Electoral district
Location	United Kingdom
Number	650 (as of 2023)
Populations	20,887 (Na h-Eileanan an Iar) - 113,021 (Isle of Wight)
Government	House of Commons

The number of seats rose from 646 to 650 at the 2010 general election after proposals made by the boundary commissions for England, Wales, and Northern Ireland (the Fifth Periodic Review of Westminster constituencies) were adopted through statutory instruments. Constituencies in Scotland remained unchanged, as the Boundary Commission for Scotland had completed a review just before the 2005 general election, which had resulted in a reduction of 13 seats.

Primary legislation provides for the independence of the boundary commissions for each of the four parts of the UK, the number of seats for each of the countries, permissible factors to use in departing from any old boundaries, and a strong duty to consult. The Fifth Review was governed by the Parliamentary Constituencies Act of 1986. Under the Parliamentary Voting System and Constituencies Act 2011, as amended by the Parliamentary Constituencies Act 2020, the number of MPs is now fixed at 650. The Sainte-Laguë formula method is used to form groups of seats split between the four parts of the United Kingdom and the English regions (as defined by the NUTS 1 statistical regions of England).

Overview

The table below gives the number of eligible voters broken down by constituent country, including the average constituency size in each country.

Year	2000		2010		2015		2017		2019
	Numbers	%	Numbers	%	Numbers	%	Numbers	%	Numbers	%
Total electorate for each constituent country
England	36,994,681	83.47%	38,432,802	83.81%	38,736,146	83.57%	38,693,900	83.85%	39,901,035	83.88%
Scotland	3,995,489	9.02%	3,929,956	8.57%	4,099,532	8.84%	3,950,600	8.56%	4,053,056	8.52%
Wales	2,225,689	5.02%	2,302,300	5.02%	2,281,754	4.92%	2,261,200	4.90%	2,319,690	4.88%
Northern Ireland	1,103,670	2.49%	1,190,635	2.60%	1,236,765	2.67%	1,242,300	2.69%	1,293,971	2.72%
UK total	44,319,529	—	45,855,693	—	46,354,197	—	46,148,000	—	47,567,752	—
Average electorate per constituency for each constituent country
England	69,408	101.80%	72,107	102.21%	72,676	101.91%	72,596	102.25%	74,861	102.30%
Scotland	67,720	99.32%	66,609	94.42%	69,484	97.43%	66,959	94.31%	68,696	93.87%
Wales	55,642	81.61%	57,558	81.59%	57,044	79.99%	56,530	79.62%	57,992	79.24%
Northern Ireland	61,315	89.93%	66,146	93.76%	68,709	96.35%	69,017	97.21%	71,887	98.23%
Overall UK average	68,184	—	70,547	—	71,314	—	70,997	—	73,181	—

Geographical size of constituencies

As the number of electors in each constituency is similar, the constituencies themselves vary considerably in area, ranging from Ross, Skye and Lochaber, which occupies a sixth of Scotland, to the densely-populated London constituency of Islington North.

Largest and smallest constituencies by UK nation

	Largest	Smallest
England	Penrith and The Border 3,135 square kilometres (1,210 sq mi)	Islington North 7.38 square kilometres (2.85 sq mi)
Scotland	Ross, Skye and Lochaber 12,768 square kilometres (4,930 sq mi)	Glasgow North 16.86 square kilometres (6.51 sq mi)
Wales	Brecon and Radnorshire 3,015 square kilometres (1,164 sq mi)	Cardiff Central 16.83 square kilometres (6.50 sq mi)
Northern Ireland	Fermanagh and South Tyrone 2,512 square kilometres (970 sq mi)	Belfast North 50.34 square kilometres (19.44 sq mi)

Parliamentary constituencies in the United Kingdom

For MPs elected in the latest election (also with nominal party holding the seat in the previous election), see List of MPs elected in the 2019 United Kingdom general election.

Size of electorate in each constituency

The "Region" of the table refers to the NUTS 1 statistical region of England, which coincides with the former European Parliament constituency in which the constituency was included until 31 January 2020.

As of the 2019 election there are 533 constituencies in England, 40 in Wales, 59 in Scotland and 18 in Northern Ireland.

England

Constituency	Electorate 2019	Ceremonial county	Region
Aldershot	72,617	Hampshire	South East
Aldridge-Brownhills	60,138	West Midlands	West Midlands
Altrincham and Sale West	73,107	Greater Manchester	North West
Amber Valley	69,976	Derbyshire	East Midlands
Arundel and South Downs	81,726	West Sussex	South East
Ashfield	78,204	Nottinghamshire	East Midlands
Ashford	89,553	Kent	South East
Ashton-under-Lyne	67,978	Greater Manchester	North West
Aylesbury	86,665	Buckinghamshire	South East
Banbury	90,116	Oxfordshire	South East
Barking	77,953	London (Barking and Dagenham)	London
Barnsley Central	65,277	South Yorkshire	Yorkshire & the Humber
Barnsley East	69,504	South Yorkshire	Yorkshire & the Humber
Barrow and Furness	70,158	Cumbria	North West
Basildon and Billericay	69,906	Essex	Eastern
Basingstoke	82,928	Hampshire	South East
Bassetlaw	80,024	Nottinghamshire	East Midlands
Bath	67,805	Somerset (prev. Avon)	South West
Batley and Spen	79,558	West Yorkshire	Yorkshire & the Humber
Battersea	79,350	London (Wandsworth)	London
Beaconsfield	77,720	Buckinghamshire	South East
Beckenham	68,662	London (Bromley)	London
Bedford	71,581	Bedfordshire	Eastern
Bermondsey and Old Southwark	93,248	London (Southwark)	London
Berwick-upon-Tweed	59,939	Northumberland	North East
Bethnal Green and Bow	88,262	London (Tower Hamlets)	London
Beverley and Holderness	79,696	East Riding of Yorkshire (prev. Humberside)	Yorkshire & the Humber
Bexhill and Battle	81,963	East Sussex	South East
Bexleyheath and Crayford	65,466	London (Bexley)	London
Birkenhead	63,762	Merseyside	North West
Birmingham, Edgbaston	68,828	West Midlands	West Midlands
Birmingham, Erdington	66,148	West Midlands	West Midlands
Birmingham, Hall Green	80,283	West Midlands	West Midlands
Birmingham, Hodge Hill	78,295	West Midlands	West Midlands
Birmingham, Ladywood	74,912	West Midlands	West Midlands
Birmingham, Northfield	73,694	West Midlands	West Midlands
Birmingham, Perry Barr	72,006	West Midlands	West Midlands
Birmingham, Selly Oak	82,665	West Midlands	West Midlands
Birmingham, Yardley	74,704	West Midlands	West Midlands
Bishop Auckland	68,170	County Durham	North East
Blackburn	71,234	Lancashire	North West
Blackley and Broughton	73,372	Greater Manchester	North West
Blackpool North and Cleveleys	63,692	Lancashire	North West
Blackpool South	57,690	Lancashire	North West
Blaydon	67,853	Tyne and Wear	North East
Blyth Valley	64,429	Northumberland	North East
Bognor Regis and Littlehampton	77,446	West Sussex	South East
Bolsover	75,161	Derbyshire	East Midlands
Bolton North East	67,564	Greater Manchester	North West
Bolton South East	69,163	Greater Manchester	North West
Bolton West	73,191	Greater Manchester	North West
Bootle	74,832	Merseyside	North West
Boston and Skegness	69,381	Lincolnshire	East Midlands
Bosworth	81,542	Leicestershire	East Midlands
Bournemouth East	74,125	Dorset	South West
Bournemouth West	74,205	Dorset	South West
Bracknell	78,978	Berkshire	South East
Bradford East	73,206	West Yorkshire	Yorkshire & the Humber
Bradford South	69,046	West Yorkshire	Yorkshire & the Humber
Bradford West	70,694	West Yorkshire	Yorkshire & the Humber
Braintree	75,208	Essex	Eastern
Brent Central	84,032	London (Brent)	London
Brent North	83,788	London (Brent)	London
Brentford and Isleworth	85,775	London (Hounslow)	London
Brentwood and Ongar	75,255	Essex	Eastern
Bridgwater and West Somerset	85,327	Somerset	South West
Brigg and Goole	65,939	East Riding of Yorkshire and Lincolnshire (prev. Humberside)	Yorkshire & the Humber
Brighton, Kemptown	69,833	East Sussex	South East
Brighton, Pavilion	79,057	East Sussex	South East
Bristol East	73,867	Bristol (prev. Avon)	South West
Bristol North West	76,273	Bristol (prev. Avon)	South West
Bristol South	84,079	Bristol (prev. Avon)	South West
Bristol West	99,253	Bristol (prev. Avon)	South West
Broadland	78,151	Norfolk	Eastern
Bromley and Chislehurst	66,697	London (Bromley)	London
Bromsgrove	75,078	Worcestershire	West Midlands
Broxbourne	73,182	Hertfordshire	Eastern
Broxtowe	73,052	Nottinghamshire	East Midlands
Buckingham	83,146	Buckinghamshire	South East
Burnley	64,345	Lancashire	North West
Burton	75,036	Staffordshire	West Midlands
Bury North	68,802	Greater Manchester	North West
Bury South	75,152	Greater Manchester	North West
Bury St Edmunds	89,644	Suffolk	Eastern
Calder Valley	79,287	West Yorkshire	Yorkshire & the Humber
Camberwell and Peckham	88,971	London (Southwark)	London
Camborne and Redruth	70,250	Cornwall	South West
Cambridge	79,951	Cambridgeshire	Eastern
Cannock Chase	74,813	Staffordshire	West Midlands
Canterbury	80,203	Kent	South East
Carlisle	65,105	Cumbria	North West
Carshalton and Wallington	72,941	London (Sutton)	London
Castle Point	69,608	Essex	Eastern
Central Devon	74,926	Devon	South West
Central Suffolk and North Ipswich	80,037	Suffolk	Eastern
Charnwood	79,534	Leicestershire	East Midlands
Chatham and Aylesford	71,642	Kent	South East
Cheadle	74,577	Greater Manchester	North West
Chelmsford	80,394	Essex	Eastern
Chelsea and Fulham	67,110	London (Hammersmith and Fulham and Kensington and Chelsea)	London
Cheltenham	81,044	Gloucestershire	South West
Chesham and Amersham	72,542	Buckinghamshire	South East
Chesterfield	71,034	Derbyshire	East Midlands
Chichester	85,499	West Sussex	South East
Chingford and Woodford Green	65,393	London (Redbridge and Waltham Forest)	London
Chippenham	77,221	Wiltshire	South West
Chipping Barnet	79,960	London (Barnet)	London
Chorley	78,177	Lancashire	North West
Christchurch	71,520	Dorset	South West
Cities of London and Westminster	63,700	London (City and Westminster)	London
City of Chester	76,057	Cheshire	North West
City of Durham	71,271	County Durham	North East
Clacton	70,930	Essex	Eastern
Cleethorpes	73,689	Lincolnshire (prev. Humberside)	Yorkshire & the Humber
Colchester	82,625	Essex	Eastern
Colne Valley	84,174	West Yorkshire	Yorkshire & the Humber
Congleton	80,930	Cheshire	North West
Copeland	61,693	Cumbria	North West
Corby	86,153	Northamptonshire	East Midlands
Coventry North East	76,006	West Midlands	West Midlands
Coventry North West	75,247	West Midlands	West Midlands
Coventry South	70,979	West Midlands	West Midlands
Crawley	74,207	West Sussex	South East
Crewe and Nantwich	80,321	Cheshire	North West
Croydon Central	81,407	London (Croydon)	London
Croydon North	88,468	London (Croydon)	London
Croydon South	83,982	London (Croydon)	London
Dagenham and Rainham	71,045	London (Barking and Dagenham and Havering)	London
Darlington	66,397	County Durham	North East
Dartford	82,209	Kent	South East
Daventry	77,423	Northamptonshire	East Midlands
Denton and Reddish	66,234	Greater Manchester	North West
Derby North	73,199	Derbyshire	East Midlands
Derby South	73,062	Derbyshire	East Midlands
Derbyshire Dales	65,080	Derbyshire	East Midlands
Devizes	73,372	Wiltshire	South West
Dewsbury	81,253	West Yorkshire	Yorkshire & the Humber
Don Valley	75,356	South Yorkshire	Yorkshire & the Humber
Doncaster Central	71,389	South Yorkshire	Yorkshire & the Humber
Doncaster North	72,362	South Yorkshire	Yorkshire & the Humber
Dover	76,355	Kent	South East
Dudley North	61,936	West Midlands	West Midlands
Dudley South	60,731	West Midlands	West Midlands
Dulwich and West Norwood	80,331	London (Lambeth and Southwark)	London
Ealing Central and Acton	75,510	London (Ealing)	London
Ealing North	74,473	London (Ealing)	London
Ealing, Southall	64,581	London (Ealing)	London
Easington	61,182	County Durham	North East
East Devon	87,168	Devon	South West
East Ham	88,319	London (Newham)	London
East Hampshire	76,478	Hampshire	South East
East Surrey	83,148	Surrey	South East
East Worthing and Shoreham	75,194	West Sussex	South East
East Yorkshire	80,923	East Riding of Yorkshire (prev. Humberside)	Yorkshire & the Humber
Eastbourne	79,307	East Sussex	South East
Eastleigh	83,880	Hampshire	South East
Eddisbury	73,700	Cheshire	North West
Edmonton	65,747	London (Enfield)	London
Ellesmere Port and Neston	70,327	Cheshire	North West
Elmet and Rothwell	80,957	West Yorkshire	Yorkshire & the Humber
Eltham	64,086	London (Greenwich)	London
Enfield North	68,301	London (Enfield)	London
Enfield, Southgate	65,525	London (Enfield)	London
Epping Forest	74,304	Essex	Eastern
Epsom and Ewell	81,138	Surrey	South East
Erewash	72,523	Derbyshire	East Midlands
Erith and Thamesmead	65,399	London (Bexley and Greenwich)	London
Esher and Walton	81,184	Surrey	South East
Exeter	82,054	Devon	South West
Fareham	78,337	Hampshire	South East
Faversham and Mid Kent	73,403	Kent	South East
Feltham and Heston	80,934	London (Hounslow)	London
Filton and Bradley Stoke	74,016	Gloucestershire (prev. Avon)	South West
Finchley and Golders Green	77,573	London (Barnet)	London
Folkestone and Hythe	88,272	Kent	South East
Forest of Dean	71,438	Gloucestershire	South West
Fylde	66,847	Lancashire	North West
Gainsborough	76,343	Lincolnshire	East Midlands
Garston and Halewood	76,116	Merseyside	North West
Gateshead	64,449	Tyne and Wear	North East
Gedling	71,366	Nottinghamshire	East Midlands
Gillingham and Rainham	73,549	Kent	South East
Gloucester	81,319	Gloucestershire	South West
Gosport	73,541	Hampshire	South East
Grantham and Stamford	81,502	Lincolnshire	East Midlands
Gravesham	73,242	Kent	South East
Great Grimsby	61,409	Lincolnshire (prev. Humberside)	Yorkshire & the Humber
Great Yarmouth	71,957	Norfolk	Eastern
Greenwich and Woolwich	79,997	London (Greenwich)	London
Guildford	77,729	Surrey	South East
Hackney North and Stoke Newington	92,462	London (Hackney)	London
Hackney South and Shoreditch	89,387	London (Hackney)	London
Halesowen and Rowley Regis	68,300	West Midlands	West Midlands
Halifax	71,887	West Yorkshire	Yorkshire & the Humber
Haltemprice and Howden	71,083	East Riding of Yorkshire (prev. Humberside)	Yorkshire & the Humber
Halton	71,930	Cheshire	North West
Hammersmith	74,759	London (Hammersmith and Fulham)	London
Hampstead and Kilburn	86,571	London (Brent and Camden)	London
Harborough	80,151	Leicestershire	East Midlands
Harlow	68,078	Essex	Eastern
Harrogate and Knaresborough	77,941	North Yorkshire	Yorkshire & the Humber
Harrow East	72,106	London (Harrow)	London
Harrow West	72,464	London (Harrow)	London
Hartlepool	70,855	County Durham (prev. Cleveland)	North East
Harwich and North Essex	74,153	Essex	Eastern
Hastings and Rye	80,524	East Sussex	South East
Havant	72,103	Hampshire	South East
Hayes and Harlington	72,357	London (Hillingdon)	London
Hazel Grove	63,346	Greater Manchester	North West
Hemel Hempstead	74,035	Hertfordshire	Eastern
Hemsworth	73,726	West Yorkshire	Yorkshire & the Humber
Hendon	82,661	London (Barnet)	London
Henley	76,646	Oxfordshire	South East
Hereford and South Herefordshire	72,085	Herefordshire	West Midlands
Hertford and Stortford	81,765	Hertfordshire	Eastern
Hertsmere	73,971	Hertfordshire	Eastern
Hexham	61,324	Northumberland	North East
Heywood and Middleton	80,162	Greater Manchester	North West
High Peak	74,265	Derbyshire	East Midlands
Hitchin and Harpenden	76,323	Hertfordshire	Eastern
Holborn and St Pancras	86,061	London (Camden)	London
Hornchurch and Upminster	80,765	London (Havering)	London
Hornsey and Wood Green	81,814	London (Haringey)	London
Horsham	86,730	West Sussex	South East
Houghton and Sunderland South	68,835	Tyne and Wear	North East
Hove	74,313	East Sussex	South East
Huddersfield	65,525	West Yorkshire	Yorkshire & the Humber
Huntingdon	84,657	Cambridgeshire	Eastern
Hyndburn	70,842	Lancashire	North West
Ilford North	72,973	London (Redbridge)	London
Ilford South	84,972	London (Redbridge)	London
Ipswich	75,525	Suffolk	Eastern
Isle of Wight	113,021	Isle of Wight	South East
Islington North	75,162	London (Islington)	London
Islington South and Finsbury	70,489	London (Islington)	London
Jarrow	65,103	Tyne and Wear	North East
Keighley	72,778	West Yorkshire	Yorkshire & the Humber
Kenilworth and Southam	68,154	Warwickshire	West Midlands
Kensington	64,609	London (Kensington and Chelsea)	London
Kettering	73,164	Northamptonshire	East Midlands
Kingston and Surbiton	81,975	London (Kingston upon Thames)	London
Kingston upon Hull East	65,745	East Riding of Yorkshire (prev. Humberside)	Yorkshire & the Humber
Kingston upon Hull North	65,515	East Riding of Yorkshire (prev. Humberside)	Yorkshire & the Humber
Kingston upon Hull West and Hessle	60,192	East Riding of Yorkshire (prev. Humberside)	Yorkshire & the Humber
Kingswood	68,972	Gloucestershire (prev. Avon)	South West
Knowsley	84,082	Merseyside	North West
Lancaster and Fleetwood	70,059	Lancashire	North West
Leeds Central	90,971	West Yorkshire	Yorkshire & the Humber
Leeds East	67,286	West Yorkshire	Yorkshire & the Humber
Leeds North East	70,580	West Yorkshire	Yorkshire & the Humber
Leeds North West	67,741	West Yorkshire	Yorkshire & the Humber
Leeds West	67,727	West Yorkshire	Yorkshire & the Humber
Leicester East	78,433	Leicestershire	East Midlands
Leicester South	77,708	Leicestershire	East Midlands
Leicester West	64,940	Leicestershire	East Midlands
Leigh	77,417	Greater Manchester	North West
Lewes	71,503	East Sussex	South East
Lewisham, Deptford	80,631	London (Lewisham)	London
Lewisham East	67,857	London (Lewisham)	London
Lewisham West and Penge	74,617	London (Bromley and Lewisham)	London
Leyton and Wanstead	64,852	London (Redbridge and Waltham Forest)	London
Lichfield	76,616	Staffordshire	West Midlands
Lincoln	74,942	Lincolnshire	East Midlands
Liverpool, Riverside	80,310	Merseyside	North West
Liverpool, Walton	62,628	Merseyside	North West
Liverpool, Wavertree	63,458	Merseyside	North West
Liverpool, West Derby	65,640	Merseyside	North West
Loughborough	79,764	Leicestershire	East Midlands
Louth and Horncastle	79,634	Lincolnshire	East Midlands
Ludlow	69,444	Shropshire	West Midlands
Luton North	68,185	Bedfordshire	Eastern
Luton South	69,338	Bedfordshire	Eastern
Macclesfield	76,216	Cheshire	North West
Maidenhead	76,668	Berkshire	South East
Maidstone and The Weald	76,109	Kent	South East
Makerfield	74,190	Greater Manchester	North West
Maldon	72,438	Essex	Eastern
Manchester Central	92,247	Greater Manchester	North West
Manchester, Gorton	76,419	Greater Manchester	North West
Manchester, Withington	76,530	Greater Manchester	North West
Mansfield	77,131	Nottinghamshire	East Midlands
Meon Valley	75,737	Hampshire	South East
Meriden	85,368	West Midlands	West Midlands
Mid Bedfordshire	87,795	Bedfordshire	Eastern
Mid Derbyshire	67,442	Derbyshire	East Midlands
Mid Dorset and North Poole	65,427	Dorset	South West
Mid Norfolk	82,203	Norfolk	Eastern
Mid Sussex	85,146	West Sussex	South East
Mid Worcestershire	78,220	Worcestershire	West Midlands
Middlesbrough	60,764	North Yorkshire (prev. Cleveland)	North East
Middlesbrough South and East Cleveland	72,348	North Yorkshire (prev. Cleveland)	North East
Milton Keynes North	91,545	Buckinghamshire	South East
Milton Keynes South	96,363	Buckinghamshire	South East
Mitcham and Morden	70,021	London (Merton)	London
Mole Valley	74,665	Surrey	South East
Morecambe and Lunesdale	67,397	Lancashire	North West
Morley and Outwood	78,803	West Yorkshire	Yorkshire & the Humber
New Forest East	73,549	Hampshire	South East
New Forest West	70,869	Hampshire	South East
Newark	75,850	Nottinghamshire	East Midlands
Newbury	83,414	Berkshire	South East
Newcastle upon Tyne Central	63,796	Tyne and Wear	North East
Newcastle upon Tyne East	68,486	Tyne and Wear	North East
Newcastle upon Tyne North	68,211	Tyne and Wear	North East
Newcastle-under-Lyme	57,845	Staffordshire	West Midlands
Newton Abbot	72,529	Devon	South West
Normanton, Pontefract and Castleford	84,527	West Yorkshire	Yorkshire & the Humber
North Cornwall	69,935	Cornwall	South West
North Devon	75,859	Devon	South West
North Dorset	76,765	Dorset	South West
North Durham	66,796	County Durham	North East
North East Bedfordshire	90,678	Bedfordshire	Eastern
North East Cambridgeshire	83,699	Cambridgeshire	Eastern
North East Derbyshire	72,345	Derbyshire	East Midlands
North East Hampshire	78,954	Hampshire	South East
North East Hertfordshire	76,123	Hertfordshire	Eastern
North East Somerset	73,692	Somerset (prev. Avon)	South West
North Herefordshire	70,252	Herefordshire	West Midlands
North Norfolk	70,729	Norfolk	Eastern
North Shropshire	83,258	Shropshire	West Midlands
North Somerset	80,194	Somerset (prev. Avon)	South West
North Swindon	82,441	Wiltshire	South West
North Thanet	72,756	Kent	South East
North Tyneside	78,902	Tyne and Wear	North East
North Warwickshire	70,271	Warwickshire	West Midlands
North West Cambridgeshire	94,909	Cambridgeshire	Eastern
North West Durham	72,166	County Durham	North East
North West Hampshire	83,083	Hampshire	South East
North West Leicestershire	78,935	Leicestershire	East Midlands
North West Norfolk	72,080	Norfolk	Eastern
North Wiltshire	73,280	Wiltshire	South West
Northampton North	58,768	Northamptonshire	East Midlands
Northampton South	62,163	Northamptonshire	East Midlands
Norwich North	67,172	Norfolk	Eastern
Norwich South	77,845	Norfolk	Eastern
Nottingham East	66,262	Nottinghamshire	East Midlands
Nottingham North	66,495	Nottinghamshire	East Midlands
Nottingham South	79,485	Nottinghamshire	East Midlands
Nuneaton	70,226	Warwickshire	West Midlands
Old Bexley and Sidcup	66,104	London (Bexley)	London
Oldham East and Saddleworth	72,120	Greater Manchester	North West
Oldham West and Royton	72,999	Greater Manchester	North West
Orpington	68,877	London (Bromley)	London
Oxford East	78,303	Oxfordshire	South East
Oxford West and Abingdon	76,951	Oxfordshire	South East
Pendle	65,292	Lancashire	North West
Penistone and Stocksbridge	70,925	South Yorkshire	Yorkshire & the Humber
Penrith and The Border	67,555	Cumbria	North West
Peterborough	72,560	Cambridgeshire	Eastern
Plymouth, Moor View	69,430	Devon	South West
Plymouth, Sutton and Devonport	77,852	Devon	South West
Poole	73,989	Dorset	South West
Poplar and Limehouse	91,836	London (Tower Hamlets)	London
Portsmouth North	71,299	Hampshire	South East
Portsmouth South	74,186	Hampshire	South East
Preston	59,672	Lancashire	North West
Pudsey	73,212	West Yorkshire	Yorkshire & the Humber
Putney	65,556	London (Wandsworth)	London
Rayleigh and Wickford	78,930	Essex	Eastern
Reading East	77,152	Berkshire	South East
Reading West	74,137	Berkshire	South East
Redcar	65,864	North Yorkshire (prev. Cleveland)	North East
Redditch	65,391	Worcestershire	West Midlands
Reigate	74,242	Surrey	South East
Ribble Valley	79,247	Lancashire	North West
Richmond (Yorks)	82,569	North Yorkshire	Yorkshire & the Humber
Richmond Park	82,699	London (Kingston upon Thames and Richmond upon Thames)	London
Rochdale	78,909	Greater Manchester	North West
Rochester and Strood	82,056	Kent	South East
Rochford and Southend East	75,624	Essex	Eastern
Romford	72,350	London (Havering)	London
Romsey and Southampton North	68,228	Hampshire	South East
Rossendale and Darwen	72,770	Lancashire	North West
Rother Valley	74,804	South Yorkshire	Yorkshire & the Humber
Rotherham	61,688	South Yorkshire	Yorkshire & the Humber
Rugby	72,292	Warwickshire	West Midlands
Ruislip, Northwood and Pinner	72,816	London (Harrow and Hillingdon)	London
Runnymede and Weybridge	77,196	Surrey	South East
Rushcliffe	77,047	Nottinghamshire	East Midlands
Rutland and Melton	82,705	Leicestershire and Rutland	East Midlands
Saffron Walden	87,017	Essex	Eastern
Salford and Eccles	82,202	Greater Manchester	North West
Salisbury	74,556	Wiltshire	South West
Scarborough and Whitby	74,404	North Yorkshire	Yorkshire & the Humber
Scunthorpe	61,955	Lincolnshire (prev. Humberside)	Yorkshire & the Humber
Sedgefield	64,325	County Durham	North East
Sefton Central	69,760	Merseyside	North West
Selby and Ainsty	78,398	North Yorkshire	Yorkshire & the Humber
Sevenoaks	71,757	Kent	South East
Sheffield, Brightside and Hillsborough	69,333	South Yorkshire	Yorkshire & the Humber
Sheffield Central	89,849	South Yorkshire	Yorkshire & the Humber
Sheffield, Hallam	72,763	South Yorkshire	Yorkshire & the Humber
Sheffield, Heeley	66,940	South Yorkshire	Yorkshire & the Humber
Sheffield South East	67,832	South Yorkshire	Yorkshire & the Humber
Sherwood	77,888	Nottinghamshire	East Midlands
Shipley	74,029	West Yorkshire	Yorkshire & the Humber
Shrewsbury and Atcham	82,238	Shropshire	West Midlands
Sittingbourne and Sheppey	83,917	Kent	South East
Skipton and Ripon	78,673	North Yorkshire	Yorkshire & the Humber
Sleaford and North Hykeham	94,761	Lincolnshire	East Midlands
Slough	86,818	Berkshire	South East
Solihull	78,760	West Midlands	West Midlands
Somerton and Frome	85,866	Somerset	South West
South Basildon and East Thurrock	74,441	Essex	Eastern
South Cambridgeshire	87,288	Cambridgeshire	Eastern
South Derbyshire	79,331	Derbyshire	East Midlands
South Dorset	73,809	Dorset	South West
South East Cambridgeshire	86,769	Cambridgeshire	Eastern
South East Cornwall	71,825	Cornwall	South West
South Holland and The Deepings	75,975	Lincolnshire	East Midlands
South Leicestershire	80,520	Leicestershire	East Midlands
South Norfolk	86,214	Norfolk	Eastern
South Northamptonshire	90,842	Northamptonshire	East Midlands
South Ribble	75,351	Lancashire	North West
South Shields	62,793	Tyne and Wear	North East
South Staffordshire	73,668	Staffordshire	West Midlands
South Suffolk	76,201	Suffolk	Eastern
South Swindon	73,118	Wiltshire	South West
South Thanet	73,223	Kent	South East
South West Bedfordshire	79,926	Bedfordshire	Eastern
South West Devon	72,535	Devon	South West
South West Hertfordshire	80,499	Hertfordshire	Eastern
South West Norfolk	78,455	Norfolk	Eastern
South West Surrey	79,096	Surrey	South East
South West Wiltshire	77,969	Wiltshire	South West
Southampton, Itchen	72,299	Hampshire	South East
Southampton, Test	70,116	Hampshire	South East
Southend West	69,043	Essex	Eastern
Southport	70,837	Merseyside	North West
Spelthorne	70,929	Surrey	South East
St Albans	73,727	Hertfordshire	Eastern
St Austell and Newquay	79,930	Cornwall	South West
St Helens North	75,593	Merseyside	North West
St Helens South and Whiston	79,061	Merseyside	North West
St Ives	68,795	Cornwall	South West
Stafford	72,572	Staffordshire	West Midlands
Staffordshire Moorlands	65,485	Staffordshire	West Midlands
Stalybridge and Hyde	73,064	Greater Manchester	North West
Stevenage	71,562	Hertfordshire	Eastern
Stockport	65,391	Greater Manchester	North West
Stockton North	66,649	County Durham (prev. Cleveland)	North East
Stockton South	76,870	County Durham and North Yorkshire (prev. Cleveland)	North East
Stoke-on-Trent Central	55,419	Staffordshire	West Midlands
Stoke-on-Trent North	68,298	Staffordshire	West Midlands
Stoke-on-Trent South	64,491	Staffordshire	West Midlands
Stone	69,378	Staffordshire	West Midlands
Stourbridge	69,891	West Midlands	West Midlands
Stratford-on-Avon	74,037	Warwickshire	West Midlands
Streatham	84,783	London (Lambeth)	London
Stretford and Urmston	72,372	Greater Manchester	North West
Stroud	84,537	Gloucestershire	South West
Suffolk Coastal	81,910	Suffolk	Eastern
Sunderland Central	72,680	Tyne and Wear	North East
Surrey Heath	81,349	Surrey	South East
Sutton and Cheam	71,779	London (Sutton)	London
Sutton Coldfield	75,638	West Midlands	West Midlands
Tamworth	71,572	Staffordshire	West Midlands
Tatton	69,018	Cheshire	North West
Taunton Deane	88,676	Somerset	South West
Telford	68,921	Shropshire	West Midlands
Tewkesbury	83,958	Gloucestershire	South West
The Cotswolds	81,939	Gloucestershire	South West
The Wrekin	70,693	Shropshire	West Midlands
Thirsk and Malton	80,991	North Yorkshire	Yorkshire & the Humber
Thornbury and Yate	69,492	Gloucestershire (prev. Avon)	South West
Thurrock	79,659	Essex	Eastern
Tiverton and Honiton	82,953	Devon	South West
Tonbridge and Malling	79,278	Kent	South East
Tooting	76,954	London (Wandsworth)	London
Torbay	75,054	Devon	South West
Torridge and West Devon	80,403	Devon	South West
Totnes	69,863	Devon	South West
Tottenham	75,740	London (Haringey)	London
Truro and Falmouth	76,719	Cornwall	South West
Tunbridge Wells	74,823	Kent	South East
Twickenham	84,906	London (Richmond upon Thames)	London
Tynemouth	77,261	Tyne and Wear	North East
Uxbridge and South Ruislip	70,365	London (Hillingdon)	London
Vauxhall	88,659	London (Lambeth)	London
Wakefield	70,192	West Yorkshire	Yorkshire & the Humber
Wallasey	66,310	Merseyside	North West
Walsall North	67,177	West Midlands	West Midlands
Walsall South	68,024	West Midlands	West Midlands
Walthamstow	70,267	London (Waltham Forest)	London
Wansbeck	63,339	Northumberland	North East
Wantage	90,867	Oxfordshire	South East
Warley	62,357	West Midlands	West Midlands
Warrington North	72,235	Cheshire	North West
Warrington South	86,015	Cheshire	North West
Warwick and Leamington	76,362	Warwickshire	West Midlands
Washington and Sunderland West	66,278	Tyne and Wear	North East
Watford	83,359	Hertfordshire	Eastern
Waveney	82,791	Suffolk	Eastern
Wealden	82,998	East Sussex	South East
Weaver Vale	70,551	Cheshire	North West
Wellingborough	80,765	Northamptonshire	East Midlands
Wells	84,124	Somerset	South West
Welwyn Hatfield	74,892	Hertfordshire	Eastern
Wentworth and Dearne	74,536	South Yorkshire	Yorkshire & the Humber
West Bromwich East	62,046	West Midlands	West Midlands
West Bromwich West	64,517	West Midlands	West Midlands
West Dorset	81,897	Dorset	South West
West Ham	97,947	London (Newham)	London
West Lancashire	73,347	Lancashire	North West
West Suffolk	80,193	Suffolk	Eastern
West Worcestershire	76,241	Worcestershire	West Midlands
Westminster North	65,519	London (Westminster)	London
Westmorland and Lonsdale	67,789	Cumbria	North West
Weston-super-Mare	82,526	Somerset (prev. Avon)	South West
Wigan	75,680	Greater Manchester	North West
Wimbledon	68,240	London (Merton)	London
Winchester	75,582	Hampshire	South East
Windsor	75,038	Berkshire	South East
Wirral South	57,280	Merseyside	North West
Wirral West	55,550	Merseyside	North West
Witham	70,402	Essex	Eastern
Witney	83,845	Oxfordshire	South East
Woking	75,424	Surrey	South East
Wokingham	83,953	Berkshire	South East
Wolverhampton North East	61,660	West Midlands	West Midlands
Wolverhampton South East	62,883	West Midlands	West Midlands
Wolverhampton South West	60,534	West Midlands	West Midlands
Worcester	73,485	Worcestershire	West Midlands
Workington	61,370	Cumbria	North West
Worsley and Eccles South	75,219	Greater Manchester	North West
Worthing West	78,585	West Sussex	South East
Wycombe	78,093	Buckinghamshire	South East
Wyre and Preston North	74,775	Lancashire	North West
Wyre Forest	78,077	Worcestershire	West Midlands
Wythenshawe and Sale East	76,313	Greater Manchester	North West
Yeovil	82,468	Somerset	South West
York Central	74,899	North Yorkshire	Yorkshire & the Humber
York Outer	74,673	North Yorkshire	Yorkshire & the Humber

Scotland

See also: Scottish Westminster constituencies

Constituency	Electorate 2019	Council area
Aberdeen North	62,489	Aberdeen City
Aberdeen South	65,719	Aberdeen City
Airdrie and Shotts	64,011	North Lanarkshire
Angus	63,952	Angus
Argyll and Bute	66,525	Argyll and Bute
Ayr, Carrick and Cumnock	71,970	East Ayrshire and South Ayrshire
Banff and Buchan	66,655	Aberdeenshire
Berwickshire, Roxburgh and Selkirk	74,518	Scottish Borders
Caithness, Sutherland and Easter Ross	46,930	Highland
Central Ayrshire	69,742	North Ayrshire and South Ayrshire
Coatbridge, Chryston and Bellshill	72,943	North Lanarkshire
Cumbernauld, Kilsyth and Kirkintilloch East	66,079	East Dunbartonshire and North Lanarkshire
Dumfries and Galloway	74,580	Dumfries and Galloway
Dumfriesshire, Clydesdale and Tweeddale	68,330	Dumfries and Galloway, Scottish Borders and South Lanarkshire
Dundee East	66,210	Angus and Dundee City
Dundee West	64,431	Angus and Dundee City
Dunfermline and West Fife	76,652	Fife
East Dunbartonshire	66,075	East Dunbartonshire
East Kilbride, Strathaven and Lesmahagow	81,224	South Lanarkshire
East Lothian	81,600	East Lothian
East Renfrewshire	72,232	East Renfrewshire
Edinburgh East	69,424	City of Edinburgh
Edinburgh North and Leith	81,336	City of Edinburgh
Edinburgh South	66,188	City of Edinburgh
Edinburgh South West	73,501	City of Edinburgh
Edinburgh West	72,507	City of Edinburgh
Falkirk	84,472	Falkirk
Glasgow Central	69,230	Glasgow City
Glasgow East	67,381	Glasgow City
Glasgow North	57,130	Glasgow City
Glasgow North East	61,075	Glasgow City
Glasgow North West	63,402	Glasgow City
Glasgow South	70,891	Glasgow City
Glasgow South West	64,575	Glasgow City
Glenrothes	65,672	Fife
Gordon	79,629	Aberdeenshire
Inverclyde	60,622	Inverclyde
Inverness, Nairn, Badenoch and Strathspey	78,059	Highland
Kilmarnock and Loudoun	74,517	East Ayrshire
Kirkcaldy and Cowdenbeath	72,853	Fife
Lanark and Hamilton East	77,659	South Lanarkshire
Linlithgow and East Falkirk	87,044	West Lothian and Falkirk
Livingston	82,285	West Lothian
Midlothian	70,544	Midlothian
Moray	71,035	Moray
Motherwell and Wishaw	68,856	North Lanarkshire
Na h-Eileanan an Iar	21,106	Outer Hebrides
North Ayrshire and Arran	73,534	North Ayrshire
North East Fife	60,905	Fife
Ochil and South Perthshire	78,776	Clackmannanshire and Perth and Kinross
Orkney and Shetland	34,211	Orkney Islands and Shetland Islands
Paisley and Renfrewshire North	72,007	Renfrewshire
Paisley and Renfrewshire South	64,385	Renfrewshire
Perth and North Perthshire	72,600	Perth and Kinross
Ross, Skye and Lochaber	54,230	Highland
Rutherglen and Hamilton West	80,918	South Lanarkshire
Stirling	68,473	Stirling
West Aberdeenshire and Kincardine	72,640	Aberdeenshire
West Dunbartonshire	66,517	West Dunbartonshire

Wales

See also: List of parliamentary constituencies in Wales

Constituency	Electorate 2019	Council area
Aberavon	50,750	Neath Port Talbot
Aberconwy	44,699	Conwy
Alyn and Deeside	62,789	Flintshire; Wrexham
Arfon	42,215	Gwynedd
Blaenau Gwent	50,739	Blaenau Gwent
Brecon and Radnorshire	55,490	Powys
Bridgend	63,303	Bridgend
Caerphilly	63,166	Caerphilly; Newport
Cardiff Central	64,037	Cardiff
Cardiff North	68,438	Cardiff
Cardiff South and Penarth	78,837	Cardiff
Cardiff West	68,508	Cardiff
Carmarthen East and Dinefwr	57,419	Carmarthenshire
Carmarthen West and South Pembrokeshire	59,158	Carmarthenshire; Pembrokeshire
Ceredigion	56,250	Ceredigion
Clwyd South	53,919	Denbighshire; Wrexham
Clwyd West	57,714	Conwy; Denbighshire
Cynon Valley	51,134	Rhondda Cynon Taf
Delyn	54,560	Conwy; Flintshire
Dwyfor Meirionnydd	44,362	Gwynedd
Gower	61,762	Swansea
Islwyn	55,423	Caerphilly
Llanelli	60,518	Carmarthenshire; Swansea
Merthyr Tydfil and Rhymney	56,322	Caerphilly; Merthyr Tydfil
Monmouth	67,098	Monmouthshire
Montgomeryshire	48,997	Powys
Neath	56,419	Neath Port Talbot
Newport East	58,554	Newport
Newport West	66,657	Newport
Ogmore	57,581	Bridgend; Rhondda Cynon Taf
Pontypridd	60,327	Rhondda Cynon Taf
Preseli Pembrokeshire	59,606	Pembrokeshire
Rhondda	50,262	Rhondda Cynon Taf
Swansea East	58,450	Swansea
Swansea West	57,078	Swansea
Torfaen	62,330	Torfaen
Vale of Clwyd	56,649	Denbighshire
Vale of Glamorgan	76,508	Vale of Glamorgan
Wrexham	49,737	Wrexham
Ynys Môn	51,925	Isle of Anglesey

Northern Ireland

See also: List of parliamentary constituencies in Northern Ireland

Constituency	Electorate 2019	Council area
Belfast East	66,245	Belfast; Lisburn and Castlereagh
Belfast North	72,225	Belfast; Antrim and Newtownabbey
Belfast South	69,984	Belfast; Lisburn and Castlereagh
Belfast West	65,644	Belfast; Lisburn and Castlereagh
East Antrim	64,830	Antrim and Newtownabbey; Causeway Coast and Glens; Mid and East Antrim
East Londonderry	69,246	Causeway Coast and Glens; Derry City and Strabane
Fermanagh and South Tyrone	72,848	Armagh City, Banbridge and Craigavon; Fermanagh and Omagh; Mid Ulster
Foyle	74,346	Derry City and Strabane
Lagan Valley	75,735	Armagh City, Banbridge and Craigavon; Lisburn and Castlereagh; Newry, Mourne and Down
Mid Ulster	70,449	Mid Ulster
Newry and Armagh	81,226	Armagh City, Banbridge and Craigavon; Newry, Mourne and Down
North Antrim	77,134	Causeway Coast and Glens; Mid and East Antrim
North Down	67,099	Ards and North Down
South Antrim	71,711	Antrim and Newtownabbey; Lisburn and Castlereagh
South Down	79,175	Armagh City, Banbridge and Craigavon; Newry, Mourne and Down
Strangford	66,928	Ards and North Down; Lisburn and Castlereagh; Newry, Mourne and Down
Upper Bann	82,887	Armagh City, Banbridge and Craigavon
West Tyrone	66,259	Derry City and Strabane; Fermanagh and Omagh

Summary of main boundary changes for the 2010 general election

• Scotland – No changes from 2005 election.
• Wales – Number of seats unchanged: three seats were abolished and three were created: Aberconwy, Arfon, and Dwyfor Meirionnydd.
• Northern Ireland – No extra or fewer seats allocated.
• England:

• The non-metropolitan counties of Cornwall, Derbyshire, Devon, Essex, Hampshire, Lancashire, Norfolk, Northamptonshire, Warwickshire and Wiltshire each gained one seat.
• Following the abolition of the county of Avon, each of the four successor authorities (Bristol, South Gloucestershire, Bath and North East Somerset, and North Somerset) were considered separately, resulting in significant changes, gaining one seat overall.
• The metropolitan counties of Greater Manchester, Merseyside, Tyne and Wear, South Yorkshire, West Midlands and West Yorkshire each lost a seat.
• Inner London gained one seat while northern and eastern parts of Outer London each lost one.
• The City of York was reviewed separately and was divided into two seats, neither overlapping part of North Yorkshire.
• Herefordshire and Worcestershire, to reflect their full reinstatement as separate counties, were considered in separate reviews, leading to Herefordshire being split into two constituencies, each entirely within the county.
• Isle of Wight maintained its status as one constituency, the largest by electorate.

Recent boundary reviews

Following the abandonment of the Sixth Periodic Review (the 2018 review), the Boundary Commissions formally launched the 2023 Review on 5 January 2021 and published their final proposals on 28 June 2023.

See 2023 Periodic Review of Westminster constituencies for further details.

See also

• List of former United Kingdom Parliament constituencies
• Member of Parliament
• Number of Westminster MPs
• Lists of electoral districts by nation
• United Kingdom general elections overview

Bibliography

• Boundary Commission for N.I. Fifth Periodical Report (HM Command Paper 73) – Parliamentary Constituencies of Northern Ireland. Retrieved 2013-07-19.