# 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 4 July 2024.
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 | 2000 | 2010 | 2010 | 2015 | 2015 | 2017 | 2017 | 2019 | 2019 |
| Year | 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 | — |
As of 2023, every recommended constituency must have an electorate as at 2 March 2020 that is no smaller than 69,724 and no larger than 77,062. The exceptions to this rule are five 'protected' constituencies for island areas: Orkney and Shetland, Na h-Eileanan an Iar, Ynys Mon, and two constituencies on the Isle of Wight. These consequently have smaller electorates than the lower limit for other constituencies.

### Geographical size of constituencies

As the number of electors in each constituency is similar, the constituencies themselves vary considerably in area, ranging in 2019 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 (2019) :
| | 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

As of the 2024 election there are 543 constituencies in England, 32 in Wales, 57 in Scotland and 18 in Northern Ireland.

### England

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.
Constituencies in England from June 2024 :
| Constituency | Electorate March 2020 | Ceremonial county | Region |
| Aldershot | 76,765 | Hampshire | South East |
| Aldridge-Brownhills | 73,122 | West Midlands | West Midlands |
| Altrincham and Sale West | 73,934 | Greater Manchester | North West |
| Amber Valley | 70,625 | Derbyshire | East Midlands |
| Arundel and South Downs | 76,974 | West Sussex | South East |
| Ashfield | 69,819 | Nottinghamshire | East Midlands |
| Ashford | 73,546 | Kent | South East |
| Ashton-under-Lyne | 72,278 | Greater Manchester | North West |
| Aylesbury | 75,636 | Buckinghamshire | South East |
| Banbury | 69,943 | Oxfordshire | South East |
| Barking | 71,822 | London (Barking and Dagenham) | London |
| Barnsley North | 76,794 | South Yorkshire | Yorkshire and the Humber |
| Barnsley South | 75,896 | South Yorkshire | Yorkshire and the Humber |
| Barrow and Furness | 76,603 | Cumbria | North West |
| Basildon and Billericay | 76,993 | Essex | Eastern |
| Basingstoke | 77,050 | Hampshire | South East |
| Bassetlaw | 75,773 | Nottinghamshire | East Midlands |
| Bath | 73,241 | Avon | South West |
| Battersea | 71,949 | London (Wandsworth) | London |
| Beaconsfield | 72,315 | Buckinghamshire | South East |
| Beckenham and Penge | 76,625 | London (Bromley) | London |
| Bedford | 70,068 | Bedfordshire | Eastern |
| Bermondsey and Old Southwark | 70,602 | London (Southwark) | London |
| Bethnal Green and Stepney | 77,000 | London (Tower Hamlets) | London |
| Beverley and Holderness | 71,102 | Humberside | Yorkshire and the Humber |
| Bexhill and Battle | 70,869 | East Sussex | South East |
| Bexleyheath and Crayford | 69,948 | London (Bexley) | London |
| Bicester and Woodstock | 70,389 | Oxfordshire | South East |
| Birkenhead | 76,271 | Merseyside | North West |
| Birmingham Edgbaston | 71,354 | West Midlands | West Midlands |
| Birmingham Erdington | 76,856 | West Midlands | West Midlands |
| Birmingham Hall Green and Moseley | 75,781 | West Midlands | West Midlands |
| Birmingham Hodge Hill and Solihull North | 76,922 | West Midlands | West Midlands |
| Birmingham Ladywood | 76,585 | West Midlands | West Midlands |
| Birmingham Northfield | 73,483 | West Midlands | West Midlands |
| Birmingham Perry Barr | 74,048 | West Midlands | West Midlands |
| Birmingham Selly Oak | 76,285 | West Midlands | West Midlands |
| Birmingham Yardley | 71,912 | West Midlands | West Midlands |
| Bishop Auckland | 70,879 | County Durham | North East |
| Blackburn | 70,586 | Lancashire | North West |
| Blackley and Middleton South | 71,375 | Greater Manchester | North West |
| Blackpool North and Fleetwood | 75,396 | Lancashire | North West |
| Blackpool South | 76,071 | Lancashire | North West |
| Blaydon and Consett | 70,163 | County Durham; Tyne and Wear | North East |
| Blyth and Ashington | 75,452 | Northumberland | North East |
| Bognor Regis and Littlehampton | 76,985 | West Sussex | South East |
| Bolsover | 74,680 | Derbyshire | East Midlands |
| Bolton North East | 77,020 | Greater Manchester | North West |
| Bolton South and Walkden | 75,716 | Greater Manchester | North West |
| Bolton West | 72,125 | Greater Manchester | North West |
| Bootle | 75,194 | Merseyside | North West |
| Boston and Skegness | 75,806 | Lincolnshire | East Midlands |
| Bournemouth East | 73,173 | Dorset | South West |
| Bournemouth West | 72,094 | Dorset | South West |
| Bracknell | 70,247 | Berkshire | South East |
| Bradford East | 72,150 | West Yorkshire | Yorkshire and the Humber |
| Bradford South | 70,890 | West Yorkshire | Yorkshire and the Humber |
| Bradford West | 71,258 | West Yorkshire | Yorkshire and the Humber |
| Braintree | 75,662 | Essex | Eastern |
| Brent East | 75,880 | London (Brent) | London |
| Brent West | 76,463 | London (Brent) | London |
| Brentford and Isleworth | 76,354 | London (Hounslow; Richmond upon Thames) | London |
| Brentwood and Ongar | 74,937 | Essex | Eastern |
| Bridgwater | 71,418 | Somerset | South West |
| Bridlington and The Wolds | 72,501 | Humberside | Yorkshire and the Humber |
| Brigg and Immingham | 71,628 | Humberside | Yorkshire and the Humber |
| Brighton Kemptown and Peacehaven | 69,865 | East Sussex | South East |
| Brighton Pavilion | 75,722 | East Sussex | South East |
| Bristol Central | 70,227 | Avon | South West |
| Bristol East | 75,936 | Avon | South West |
| Bristol North East | 69,793 | Avon | South West |
| Bristol North West | 76,783 | Avon | South West |
| Bristol South | 74,696 | Avon | South West |
| Broadland and Fakenham | 72,907 | Norfolk | Eastern |
| Bromley and Biggin Hill | 70,418 | London (Bromley) | London |
| Bromsgrove | 75,305 | Worcestershire | West Midlands |
| Broxbourne | 75,454 | Hertfordshire | Eastern |
| Broxtowe | 72,461 | Nottinghamshire | East Midlands |
| Buckingham and Bletchley | 73,644 | Buckinghamshire | South East |
| Burnley | 75,436 | Lancashire | North West |
| Burton and Uttoxeter | 75,460 | Staffordshire | West Midlands |
| Bury North | 77,009 | Greater Manchester | North West |
| Bury South | 74,598 | Greater Manchester | North West |
| Bury St Edmunds and Stowmarket | 75,655 | Suffolk | Eastern |
| Calder Valley | 75,987 | West Yorkshire | Yorkshire and the Humber |
| Camborne and Redruth | 73,568 | Cornwall | South West |
| Cambridge | 72,560 | Cambridgeshire | Eastern |
| Cannock Chase | 75,582 | Staffordshire | West Midlands |
| Canterbury | 75,499 | Kent | South East |
| Carlisle | 75,868 | Cumbria | North West |
| Carshalton and Wallington | 72,755 | London (Sutton) | London |
| Castle Point | 70,923 | Essex | Eastern |
| Central Devon | 73,491 | Devon | South West |
| Central Suffolk and North Ipswich | 71,020 | Suffolk | Eastern |
| Chatham and Aylesford | 74,840 | Kent | South East |
| Cheadle | 73,775 | Greater Manchester | North West |
| Chelmsford | 76,454 | Essex | Eastern |
| Chelsea and Fulham | 76,481 | London (Hammersmith and Fulham; Kensington and Chelsea) | London |
| Cheltenham | 75,292 | Gloucestershire | South West |
| Chesham and Amersham | 74,155 | Buckinghamshire | South East |
| Chester North and Neston | 72,327 | Cheshire | North West |
| Chester South and Eddisbury | 71,975 | Cheshire | North West |
| Chesterfield | 70,722 | Derbyshire | East Midlands |
| Chichester | 76,765 | West Sussex | South East |
| Chingford and Woodford Green | 75,677 | London (Redbridge; Waltham Forest) | London |
| Chippenham | 71,648 | Wiltshire | South West |
| Chipping Barnet | 76,187 | London (Barnet) | London |
| Chorley | 74,568 | Lancashire | North West |
| Christchurch | 71,598 | Dorset | South West |
| Cities of London and Westminster | 73,140 | London (City; Westminster) | London |
| City of Durham | 72,878 | County Durham | North East |
| Clacton | 75,959 | Essex | Eastern |
| Clapham and Brixton Hill | 75,460 | London (Lambeth) | London |
| Colchester | 76,843 | Essex | Eastern |
| Colne Valley | 71,518 | West Yorkshire | Yorkshire and the Humber |
| Congleton | 69,836 | Cheshire | North West |
| Corby and East Northamptonshire | 76,748 | Northamptonshire | East Midlands |
| Coventry East | 73,389 | West Midlands | West Midlands |
| Coventry North West | 73,431 | West Midlands | West Midlands |
| Coventry South | 70,998 | West Midlands | West Midlands |
| Cramlington and Killingworth | 73,295 | Northumberland; Tyne and Wear | North East |
| Crawley | 74,446 | West Sussex | South East |
| Crewe and Nantwich | 76,236 | Cheshire | North West |
| Croydon East | 75,346 | London (Croydon) | London |
| Croydon South | 71,541 | London (Croydon) | London |
| Croydon West | 70,812 | London (Croydon) | London |
| Dagenham and Rainham | 73,627 | London (Barking and Dagenham; Havering) | London |
| Darlington | 70,446 | County Durham | North East |
| Dartford | 72,048 | Kent | South East |
| Daventry | 76,539 | Northamptonshire | East Midlands |
| Derby North | 71,876 | Derbyshire | East Midlands |
| Derby South | 72,067 | Derbyshire | East Midlands |
| Derbyshire Dales | 71,435 | Derbyshire | East Midlands |
| Dewsbury and Batley | 70,226 | West Yorkshire | Yorkshire and the Humber |
| Didcot and Wantage | 74,356 | Oxfordshire | South East |
| Doncaster Central | 75,007 | South Yorkshire | Yorkshire and the Humber |
| Doncaster East and the Isle of Axholme | 70,113 | Humberside; South Yorkshire | Yorkshire and the Humber |
| Doncaster North | 71,739 | South Yorkshire | Yorkshire and the Humber |
| Dorking and Horley | 70,317 | Surrey | South East |
| Dover and Deal | 75,855 | Kent | South East |
| Droitwich and Evesham | 74,345 | Worcestershire | West Midlands |
| Dudley | 71,083 | West Midlands | West Midlands |
| Dulwich and West Norwood | 74,314 | London (Lambeth; Southwark) | London |
| Dunstable and Leighton Buzzard | 74,069 | Bedfordshire | Eastern |
| Ealing Central and Acton | 75,399 | London (Ealing; Hammersmith and Fulham) | London |
| Ealing North | 72,985 | London (Ealing) | London |
| Ealing Southall | 75,085 | London (Ealing) | London |
| Earley and Woodley | 70,083 | Berkshire | South East |
| Easington | 70,043 | County Durham | North East |
| East Grinstead and Uckfield | 72,356 | East Sussex; West Sussex | South East |
| East Ham | 70,902 | London (Newham) | London |
| East Hampshire | 69,959 | Hampshire | South East |
| East Surrey | 73,145 | Surrey | South East |
| East Thanet | 73,790 | Kent | South East |
| East Wiltshire | 71,109 | Wiltshire | South West |
| East Worthing and Shoreham | 75,466 | West Sussex | South East |
| Eastbourne | 73,322 | East Sussex | South East |
| Eastleigh | 69,982 | Hampshire | South East |
| Edmonton and Winchmore Hill | 75,204 | London (Enfield) | London |
| Ellesmere Port and Bromborough | 71,027 | Cheshire; Merseyside | North West |
| Eltham and Chislehurst | 74,179 | London (Bromley; Greenwich) | London |
| Ely and East Cambridgeshire | 76,279 | Cambridgeshire | Eastern |
| Enfield North | 76,824 | London (Enfield) | London |
| Epping Forest | 74,553 | Essex | Eastern |
| Epsom and Ewell | 76,844 | Surrey | South East |
| Erewash | 71,986 | Derbyshire | East Midlands |
| Erith and Thamesmead | 76,728 | London (Bexley; Greenwich) | London |
| Esher and Walton | 73,280 | Surrey | South East |
| Exeter | 71,713 | Devon | South West |
| Exmouth and Exeter East | 74,502 | Devon | South West |
| Fareham and Waterlooville | 77,036 | Hampshire | South East |
| Farnham and Bordon | 72,938 | Hampshire; Surrey | South East |
| Faversham and Mid Kent | 71,798 | Kent | South East |
| Feltham and Heston | 75,226 | London (Hounslow) | London |
| Filton and Bradley Stoke | 73,598 | Avon | South West |
| Finchley and Golders Green | 75,761 | London (Barnet) | London |
| Folkestone and Hythe | 70,023 | Kent | South East |
| Forest of Dean | 71,510 | Gloucestershire | South West |
| Frome and East Somerset | 70,177 | Avon; Somerset | South West |
| Fylde | 75,114 | Lancashire | North West |
| Gainsborough | 74,750 | Lincolnshire | East Midlands |
| Gateshead Central and Whickham | 70,994 | Tyne and Wear | North East |
| Gedling | 75,795 | Nottinghamshire | East Midlands |
| Gillingham and Rainham | 73,951 | Kent | South East |
| Glastonbury and Somerton | 70,015 | Somerset | South West |
| Gloucester | 76,695 | Gloucestershire | South West |
| Godalming and Ash | 71,399 | Surrey | South East |
| Goole and Pocklington | 76,337 | Humberside | Yorkshire and the Humber |
| Gorton and Denton | 74,306 | Greater Manchester | North West |
| Gosport | 73,763 | Hampshire | South East |
| Grantham and Bourne | 72,071 | Lincolnshire | East Midlands |
| Gravesham | 72,866 | Kent | South East |
| Great Grimsby and Cleethorpes | 77,050 | Humberside | Yorkshire and the Humber |
| Great Yarmouth | 70,077 | Norfolk | Eastern |
| Greenwich and Woolwich | 69,824 | London (Greenwich) | London |
| Guildford | 71,367 | Surrey | South East |
| Hackney North and Stoke Newington | 75,401 | London (Hackney) | London |
| Hackney South and Shoreditch | 75,197 | London (Hackney) | London |
| Halesowen | 69,907 | West Midlands | West Midlands |
| Halifax | 74,563 | West Yorkshire | Yorkshire and the Humber |
| Hamble Valley | 76,902 | Hampshire | South East |
| Hammersmith and Chiswick | 74,746 | London (Hammersmith and Fulham; Hounslow) | London |
| Hampstead and Highgate | 74,222 | London (Camden; Haringey) | London |
| Harborough, Oadby and Wigston | 74,810 | Leicestershire | East Midlands |
| Harlow | 73,479 | Essex | Eastern |
| Harpenden and Berkhamsted | 71,635 | Hertfordshire | Eastern |
| Harrogate and Knaresborough | 75,800 | North Yorkshire | Yorkshire and the Humber |
| Harrow East | 76,299 | London (Brent; Harrow) | London |
| Harrow West | 74,060 | London (Harrow) | London |
| Hartlepool | 71,228 | Cleveland | North East |
| Harwich and North Essex | 74,838 | Essex | Eastern |
| Hastings and Rye | 75,581 | East Sussex | South East |
| Havant | 72,766 | Hampshire | South East |
| Hayes and Harlington | 72,897 | London (Hillingdon) | London |
| Hazel Grove | 72,941 | Greater Manchester | North West |
| Hemel Hempstead | 70,496 | Hertfordshire | Eastern |
| Hendon | 71,496 | London (Barnet) | London |
| Henley and Thame | 70,626 | Oxfordshire | South East |
| Hereford and South Herefordshire | 71,125 | Herefordshire | West Midlands |
| Herne Bay and Sandwich | 76,028 | Kent | South East |
| Hertford and Stortford | 75,396 | Hertfordshire | Eastern |
| Hertsmere | 73,256 | Hertfordshire | Eastern |
| Hexham | 72,738 | Northumberland; Tyne and Wear | North East |
| Heywood and Middleton North | 73,306 | Greater Manchester | North West |
| High Peak | 73,960 | Derbyshire | East Midlands |
| Hinckley and Bosworth | 75,683 | Leicestershire | East Midlands |
| Hitchin | 72,112 | Bedfordshire; Hertfordshire | Eastern |
| Holborn and St Pancras | 75,475 | London (Camden) | London |
| Honiton and Sidmouth | 74,365 | Devon | South West |
| Hornchurch and Upminster | 76,938 | London (Havering) | London |
| Hornsey and Friern Barnet | 70,565 | London (Barnet; Haringey) | London |
| Horsham | 76,981 | West Sussex | South East |
| Houghton and Sunderland South | 76,883 | Tyne and Wear | North East |
| Hove and Portslade | 73,726 | East Sussex | South East |
| Huddersfield | 76,044 | West Yorkshire | Yorkshire and the Humber |
| Huntingdon | 75,590 | Cambridgeshire | Eastern |
| Hyndburn | 71,145 | Lancashire | North West |
| Ilford North | 74,684 | London (Redbridge) | London |
| Ilford South | 74,065 | London (Barking and Dagenham; Redbridge) | London |
| Ipswich | 75,117 | Suffolk | Eastern |
| Isle of Wight East | 56,805 | Hampshire | South East |
| Isle of Wight West | 54,911 | Hampshire | South East |
| Islington North | 73,970 | London (Islington) | London |
| Islington South and Finsbury | 75,905 | London (Hackney; Islington) | London |
| Jarrow and Gateshead East | 71,106 | Tyne and Wear | North East |
| Keighley and Ilkley | 72,954 | West Yorkshire | Yorkshire and the Humber |
| Kenilworth and Southam | 71,451 | Warwickshire | West Midlands |
| Kensington and Bayswater | 75,980 | London (Kensington and Chelsea; Westminster) | London |
| Kettering | 76,163 | Northamptonshire | East Midlands |
| Kingston and Surbiton | 75,410 | London (Kingston upon Thames) | London |
| Kingston upon Hull East | 72,622 | Humberside | Yorkshire and the Humber |
| Kingston upon Hull North and Cottingham | 76,039 | Humberside | Yorkshire and the Humber |
| Kingston upon Hull West and Haltemprice | 74,321 | Humberside | Yorkshire and the Humber |
| Kingswinford and South Staffordshire | 71,896 | Staffordshire; West Midlands | West Midlands |
| Knowsley | 71,228 | Merseyside | North West |
| Lancaster and Wyre | 74,992 | Lancashire | North West |
| Leeds Central and Headingley | 75,396 | West Yorkshire | Yorkshire and the Humber |
| Leeds East | 75,330 | West Yorkshire | Yorkshire and the Humber |
| Leeds North East | 70,976 | West Yorkshire | Yorkshire and the Humber |
| Leeds North West | 71,607 | West Yorkshire | Yorkshire and the Humber |
| Leeds South | 74,726 | West Yorkshire | Yorkshire and the Humber |
| Leeds South West and Morley | 71,376 | West Yorkshire | Yorkshire and the Humber |
| Leeds West and Pudsey | 70,270 | West Yorkshire | Yorkshire and the Humber |
| Leicester East | 76,465 | Leicestershire | East Midlands |
| Leicester South | 71,007 | Leicestershire | East Midlands |
| Leicester West | 72,848 | Leicestershire | East Midlands |
| Leigh and Atherton | 76,363 | Greater Manchester | North West |
| Lewes | 75,091 | East Sussex | South East |
| Lewisham East | 71,706 | London (Lewisham) | London |
| Lewisham North | 73,504 | London (Lewisham) | London |
| Lewisham West and East Dulwich | 69,904 | London (Lewisham; Southwark) | London |
| Leyton and Wanstead | 71,330 | London (Redbridge; Waltham Forest) | London |
| Lichfield | 74,942 | Staffordshire | West Midlands |
| Lincoln | 74,128 | Lincolnshire | East Midlands |
| Liverpool Garston | 70,372 | Merseyside | North West |
| Liverpool Riverside | 70,157 | Merseyside | North West |
| Liverpool Walton | 71,181 | Merseyside | North West |
| Liverpool Wavertree | 71,076 | Merseyside | North West |
| Liverpool West Derby | 70,730 | Merseyside | North West |
| Loughborough | 73,902 | Leicestershire | East Midlands |
| Louth and Horncastle | 75,959 | Lincolnshire | East Midlands |
| Lowestoft | 73,967 | Suffolk | Eastern |
| Luton North | 73,266 | Bedfordshire | Eastern |
| Luton South and South Bedfordshire | 70,197 | Bedfordshire | Eastern |
| Macclesfield | 75,881 | Cheshire | North West |
| Maidenhead | 73,463 | Berkshire | South East |
| Maidstone and Malling | 73,084 | Kent | South East |
| Makerfield | 76,517 | Greater Manchester | North West |
| Maldon | 76,794 | Essex | Eastern |
| Manchester Central | 75,311 | Greater Manchester | North West |
| Manchester Rusholme | 70,692 | Greater Manchester | North West |
| Manchester Withington | 71,614 | Greater Manchester | North West |
| Mansfield | 74,680 | Nottinghamshire | East Midlands |
| Melksham and Devizes | 71,823 | Wiltshire | South West |
| Melton and Syston | 71,615 | Leicestershire | East Midlands |
| Meriden and Solihull East | 74,211 | West Midlands | West Midlands |
| Mid Bedfordshire | 71,748 | Bedfordshire | Eastern |
| Mid Buckinghamshire | 72,240 | Buckinghamshire | South East |
| Mid Cheshire | 69,775 | Cheshire | North West |
| Mid Derbyshire | 70,085 | Derbyshire | East Midlands |
| Mid Dorset and North Poole | 74,305 | Dorset | South West |
| Mid Leicestershire | 76,173 | Leicestershire | East Midlands |
| Mid Norfolk | 71,060 | Norfolk | Eastern |
| Mid Sussex | 72,255 | West Sussex | South East |
| Middlesbrough and Thornaby East | 71,742 | North Yorkshire | North East |
| Middlesbrough South and East Cleveland | 69,967 | Cleveland | North East |
| Milton Keynes Central | 76,708 | Buckinghamshire | South East |
| Milton Keynes North | 70,620 | Buckinghamshire | South East |
| Mitcham and Morden | 76,877 | London (Merton) | London |
| Morecambe and Lunesdale | 76,040 | Cumbria; Lancashire | North West |
| New Forest East | 73,823 | Hampshire | South East |
| New Forest West | 71,009 | Hampshire | South East |
| Newark | 76,478 | Nottinghamshire | East Midlands |
| Newbury | 71,631 | Berkshire | South East |
| Newcastle-under-Lyme | 70,025 | Staffordshire | West Midlands |
| Newcastle upon Tyne Central and West | 76,460 | Tyne and Wear | North East |
| Newcastle upon Tyne East and Wallsend | 76,875 | Tyne and Wear | North East |
| Newcastle upon Tyne North | 76,503 | Tyne and Wear | North East |
| Newton Abbot | 72,956 | Devon | South West |
| Newton Aycliffe and Spennymoor | 71,299 | County Durham | North East |
| Normanton and Hemsworth | 75,388 | West Yorkshire | Yorkshire and the Humber |
| North Bedfordshire | 76,319 | Bedfordshire | Eastern |
| North Cornwall | 75,034 | Cornwall | South West |
| North Cotswolds | 70,915 | Gloucestershire | South West |
| North Devon | 76,455 | Devon | South West |
| North Dorset | 72,109 | Dorset | South West |
| North Durham | 73,079 | County Durham | North East |
| North East Cambridgeshire | 70,806 | Cambridgeshire | Eastern |
| North East Derbyshire | 72,344 | Derbyshire | East Midlands |
| North East Hampshire | 73,306 | Hampshire | South East |
| North East Hertfordshire | 76,849 | Hertfordshire | Eastern |
| North East Somerset and Hanham | 73,113 | Avon | South West |
| North Herefordshire | 70,894 | Herefordshire | West Midlands |
| North Norfolk | 70,719 | Norfolk | Eastern |
| North Northumberland | 72,541 | Northumberland | North East |
| North Shropshire | 77,052 | Shropshire | West Midlands |
| North Somerset | 73,963 | Avon | South West |
| North Warwickshire and Bedworth | 70,245 | Warwickshire | West Midlands |
| North West Cambridgeshire | 73,556 | Cambridgeshire | Eastern |
| North West Essex | 76,280 | Essex | Eastern |
| North West Hampshire | 76,004 | Hampshire | South East |
| North West Leicestershire | 75,373 | Leicestershire | East Midlands |
| North West Norfolk | 75,200 | Norfolk | Eastern |
| Northampton North | 75,713 | Northamptonshire | East Midlands |
| Northampton South | 71,512 | Northamptonshire | East Midlands |
| Norwich North | 71,441 | Norfolk | Eastern |
| Norwich South | 73,301 | Norfolk | Eastern |
| Nottingham East | 75,327 | Nottinghamshire | East Midlands |
| Nottingham North and Kimberley | 74,515 | Nottinghamshire | East Midlands |
| Nottingham South | 76,076 | Nottinghamshire | East Midlands |
| Nuneaton | 70,335 | Warwickshire | West Midlands |
| Old Bexley and Sidcup | 74,317 | London (Bexley) | London |
| Oldham East and Saddleworth | 72,997 | Greater Manchester | North West |
| Oldham West, Chadderton and Royton | 74,183 | Greater Manchester | North West |
| Orpington | 71,571 | London (Bromley) | London |
| Ossett and Denby Dale | 71,595 | West Yorkshire | Yorkshire and the Humber |
| Oxford East | 72,371 | Oxfordshire | South East |
| Oxford West and Abingdon | 72,004 | Oxfordshire | South East |
| Peckham | 71,176 | London (Southwark) | London |
| Pendle and Clitheroe | 76,941 | Lancashire | North West |
| Penistone and Stocksbridge | 71,377 | South Yorkshire | Yorkshire and the Humber |
| Penrith and Solway | 76,720 | Cumbria | North West |
| Peterborough | 72,273 | Cambridgeshire | Eastern |
| Plymouth Moor View | 73,378 | Devon | South West |
| Plymouth Sutton and Devonport | 73,495 | Devon | South West |
| Pontefract, Castleford and Knottingley | 72,751 | West Yorkshire | Yorkshire and the Humber |
| Poole | 72,162 | Dorset | South West |
| Poplar and Limehouse | 75,814 | London (Tower Hamlets) | London |
| Portsmouth North | 71,844 | Hampshire | South East |
| Portsmouth South | 74,253 | Hampshire | South East |
| Preston | 72,946 | Lancashire | North West |
| Putney | 73,041 | London (Wandsworth) | London |
| Queen's Park and Maida Vale | 75,256 | London (Brent; Westminster) | London |
| Rawmarsh and Conisbrough | 70,272 | South Yorkshire | Yorkshire and the Humber |
| Rayleigh and Wickford | 76,422 | Essex | Eastern |
| Reading Central | 71,283 | Berkshire | South East |
| Reading West and Mid Berkshire | 69,999 | Berkshire | South East |
| Redcar | 71,331 | Cleveland | North East |
| Redditch | 69,921 | Worcestershire | West Midlands |
| Reigate | 76,139 | Surrey | South East |
| Ribble Valley | 75,993 | Lancashire | North West |
| Richmond and Northallerton | 72,744 | North Yorkshire | Yorkshire and the Humber |
| Richmond Park | 75,037 | London (Kingston upon Thames; Richmond upon Thames) | London |
| Rochdale | 71,697 | Greater Manchester | North West |
| Rochester and Strood | 72,155 | Kent | South East |
| Romford | 73,730 | London (Havering) | London |
| Romsey and Southampton North | 73,831 | Hampshire | South East |
| Rossendale and Darwen | 74,593 | Lancashire | North West |
| Rother Valley | 70,184 | South Yorkshire | Yorkshire and the Humber |
| Rotherham | 75,345 | South Yorkshire | Yorkshire and the Humber |
| Rugby | 72,603 | Warwickshire | West Midlands |
| Ruislip, Northwood and Pinner | 72,168 | London (Harrow; Hillingdon) | London |
| Runcorn and Helsby | 70,950 | Cheshire | North West |
| Runnymede and Weybridge | 73,778 | Surrey | South East |
| Rushcliffe | 76,171 | Nottinghamshire | East Midlands |
| Rutland and Stamford | 70,864 | Leicestershire and Rutland; Lincolnshire | East Midlands |
| Salford | 72,169 | Greater Manchester | North West |
| Salisbury | 70,242 | Wiltshire | South West |
| Scarborough and Whitby | 73,862 | North Yorkshire | Yorkshire and the Humber |
| Scunthorpe | 74,278 | Humberside | Yorkshire and the Humber |
| Sefton Central | 74,746 | Merseyside | North West |
| Selby | 74,761 | North Yorkshire; West Yorkshire | Yorkshire and the Humber |
| Sevenoaks | 73,684 | Kent | South East |
| Sheffield Brightside and Hillsborough | 71,154 | South Yorkshire | Yorkshire and the Humber |
| Sheffield Central | 70,453 | South Yorkshire | Yorkshire and the Humber |
| Sheffield Hallam | 76,637 | South Yorkshire | Yorkshire and the Humber |
| Sheffield Heeley | 74,614 | South Yorkshire | Yorkshire and the Humber |
| Sheffield South East | 76,223 | South Yorkshire | Yorkshire and the Humber |
| Sherwood Forest | 76,543 | Nottinghamshire | East Midlands |
| Shipley | 74,095 | West Yorkshire | Yorkshire and the Humber |
| Shrewsbury | 75,139 | Shropshire | West Midlands |
| Sittingbourne and Sheppey | 76,818 | Kent | South East |
| Skipton and Ripon | 76,758 | North Yorkshire | Yorkshire and the Humber |
| Sleaford and North Hykeham | 73,380 | Lincolnshire | East Midlands |
| Slough | 75,287 | Berkshire | South East |
| Smethwick | 71,195 | West Midlands | West Midlands |
| Solihull West and Shirley | 70,537 | West Midlands | West Midlands |
| South Basildon and East Thurrock | 73,322 | Essex | Eastern |
| South Cambridgeshire | 75,484 | Cambridgeshire | Eastern |
| South Cotswolds | 72,865 | Gloucestershire; Wiltshire | South West |
| South Derbyshire | 71,202 | Derbyshire | East Midlands |
| South Devon | 71,691 | Devon | South West |
| South Dorset | 76,640 | Dorset | South West |
| South East Cornwall | 71,734 | Cornwall | South West |
| South Holland and The Deepings | 76,139 | Lincolnshire | East Midlands |
| South Leicestershire | 75,634 | Leicestershire | East Midlands |
| South Norfolk | 69,837 | Norfolk | Eastern |
| South Northamptonshire | 76,555 | Northamptonshire | East Midlands |
| South Ribble | 72,029 | Lancashire | North West |
| South Shields | 69,725 | Tyne and Wear | North East |
| South Shropshire | 77,034 | Shropshire | West Midlands |
| South Suffolk | 71,070 | Suffolk | Eastern |
| South West Devon | 75,371 | Devon | South West |
| South West Hertfordshire | 71,552 | Hertfordshire | Eastern |
| South West Norfolk | 72,496 | Norfolk | Eastern |
| South West Wiltshire | 71,551 | Wiltshire | South West |
| Southampton Itchen | 72,150 | Hampshire | South East |
| Southampton Test | 69,960 | Hampshire | South East |
| Southend East and Rochford | 70,094 | Essex | Eastern |
| Southend West and Leigh | 76,824 | Essex | Eastern |
| Southgate and Wood Green | 76,034 | London (Enfield; Haringey) | London |
| Southport | 74,168 | Lancashire; Merseyside | North West |
| Spelthorne | 72,897 | Surrey | South East |
| Spen Valley | 72,169 | West Yorkshire | Yorkshire and the Humber |
| St Albans | 70,881 | Hertfordshire | Eastern |
| St Austell and Newquay | 74,585 | Cornwall | South West |
| St Helens North | 76,082 | Merseyside | North West |
| St Helens South and Whiston | 70,937 | Merseyside | North West |
| St Ives | 70,107 | Cornwall | South West |
| St Neots and Mid Cambridgeshire | 74,699 | Cambridgeshire | Eastern |
| Stafford | 70,537 | Staffordshire | West Midlands |
| Staffordshire Moorlands | 70,113 | Staffordshire | West Midlands |
| Stalybridge and Hyde | 73,028 | Greater Manchester | North West |
| Stevenage | 70,370 | Hertfordshire | Eastern |
| Stockport | 74,769 | Greater Manchester | North West |
| Stockton North | 69,779 | Cleveland | North East |
| Stockton West | 70,108 | Cleveland; County Durham | North East |
| Stoke-on-Trent Central | 70,550 | Staffordshire | West Midlands |
| Stoke-on-Trent North | 69,821 | Staffordshire | West Midlands |
| Stoke-on-Trent South | 69,831 | Staffordshire | West Midlands |
| Stone, Great Wyrley and Penkridge | 70,701 | Staffordshire | West Midlands |
| Stourbridge | 69,840 | West Midlands | West Midlands |
| Stratford-on-Avon | 72,388 | Warwickshire | West Midlands |
| Stratford and Bow | 73,849 | London (Newham; Tower Hamlets) | London |
| Streatham and Croydon North | 76,050 | London (Croydon; Lambeth) | London |
| Stretford and Urmston | 73,212 | Greater Manchester | North West |
| Stroud | 76,249 | Gloucestershire | South West |
| Suffolk Coastal | 72,663 | Suffolk | Eastern |
| Sunderland Central | 72,688 | Tyne and Wear | North East |
| Surrey Heath | 70,825 | Surrey | South East |
| Sussex Weald | 70,075 | East Sussex | South East |
| Sutton and Cheam | 71,284 | London (Sutton) | London |
| Sutton Coldfield | 74,584 | West Midlands | West Midlands |
| Swindon North | 72,163 | Wiltshire | South West |
| Swindon South | 72,468 | Wiltshire | South West |
| Tamworth | 73,644 | Staffordshire | West Midlands |
| Tatton | 75,538 | Cheshire | North West |
| Taunton and Wellington | 76,049 | Somerset | South West |
| Telford | 70,768 | Shropshire | West Midlands |
| Tewkesbury | 72,426 | Gloucestershire | South West |
| The Wrekin | 76,143 | Shropshire | West Midlands |
| Thirsk and Malton | 76,623 | North Yorkshire | Yorkshire and the Humber |
| Thornbury and Yate | 74,935 | Avon | South West |
| Thurrock | 73,347 | Essex | Eastern |
| Tipton and Wednesbury | 73,820 | West Midlands | West Midlands |
| Tiverton and Minehead | 70,829 | Devon; Somerset | South West |
| Tonbridge | 73,692 | Kent | South East |
| Tooting | 76,986 | London (Wandsworth) | London |
| Torbay | 75,742 | Devon | South West |
| Torridge and Tavistock | 74,802 | Devon | South West |
| Tottenham | 75,968 | London (Hackney; Haringey) | London |
| Truro and Falmouth | 73,326 | Cornwall | South West |
| Tunbridge Wells | 75,213 | Kent | South East |
| Twickenham | 75,889 | London (Richmond upon Thames) | London |
| Tynemouth | 73,022 | Tyne and Wear | North East |
| Uxbridge and South Ruislip | 75,042 | London (Hillingdon) | London |
| Vauxhall and Camberwell Green | 69,995 | London (Lambeth; Southwark) | London |
| Wakefield and Rothwell | 73,968 | West Yorkshire | Yorkshire and the Humber |
| Wallasey | 73,054 | Merseyside | North West |
| Walsall and Bloxwich | 74,866 | West Midlands | West Midlands |
| Walthamstow | 70,867 | London (Waltham Forest) | London |
| Warrington North | 72,350 | Cheshire | North West |
| Warrington South | 76,639 | Cheshire | North West |
| Warwick and Leamington | 75,440 | Warwickshire | West Midlands |
| Washington and Gateshead South | 71,775 | Tyne and Wear | North East |
| Watford | 70,576 | Hertfordshire | Eastern |
| Waveney Valley | 70,540 | Norfolk; Suffolk | Eastern |
| Weald of Kent | 70,110 | Kent | South East |
| Wellingborough and Rushden | 76,669 | Northamptonshire | East Midlands |
| Wells and Mendip Hills | 69,843 | Avon; Somerset | South West |
| Welwyn Hatfield | 74,535 | Hertfordshire | Eastern |
| West Bromwich | 72,206 | West Midlands | West Midlands |
| West Dorset | 75,390 | Dorset | South West |
| West Ham and Beckton | 70,590 | London (Newham) | London |
| West Lancashire | 73,652 | Lancashire | North West |
| West Suffolk | 76,243 | Suffolk | Eastern |
| West Worcestershire | 76,638 | Worcestershire | West Midlands |
| Westmorland and Lonsdale | 72,322 | Cumbria | North West |
| Weston-super-Mare | 70,722 | Avon | South West |
| Wetherby and Easingwold | 71,455 | North Yorkshire; West Yorkshire | Yorkshire and the Humber |
| Whitehaven and Workington | 73,385 | Cumbria | North West |
| Widnes and Halewood | 70,865 | Cheshire; Merseyside | North West |
| Wigan | 75,607 | Greater Manchester | North West |
| Wimbledon | 74,641 | London (Kingston upon Thames; Merton) | London |
| Winchester | 76,577 | Hampshire | South East |
| Windsor | 74,338 | Berkshire; Surrey | South East |
| Wirral West | 72,126 | Merseyside | North West |
| Witham | 75,064 | Essex | Eastern |
| Witney | 70,042 | Oxfordshire | South East |
| Woking | 71,737 | Surrey | South East |
| Wokingham | 70,235 | Berkshire | South East |
| Wolverhampton North East | 70,449 | West Midlands | West Midlands |
| Wolverhampton South East | 75,685 | West Midlands | West Midlands |
| Wolverhampton West | 75,592 | West Midlands | West Midlands |
| Worcester | 73,928 | Worcestershire | West Midlands |
| Worsley and Eccles | 76,915 | Greater Manchester | North West |
| Worthing West | 76,293 | West Sussex | South East |
| Wycombe | 71,769 | Buckinghamshire | South East |
| Wyre Forest | 77,015 | Worcestershire | West Midlands |
| Wythenshawe and Sale East | 76,971 | Greater Manchester | North West |
| Yeovil | 76,056 | Somerset | South West |
| York Central | 74,854 | North Yorkshire | Yorkshire and the Humber |
| York Outer | 72,720 | North Yorkshire | Yorkshire and the Humber |

### Scotland

Constituencies in Scotland from June 2024 :
| Constituency | Electorate March 2020 | Council area |
| Aberdeen North | 76,895 | Aberdeen City |
| Aberdeen South | 76,560 | Aberdeen City |
| Aberdeenshire North and Moray East | 71,485 | Aberdeenshire; Moray |
| Airdrie and Shotts | 70,420 | North Lanarkshire |
| Alloa and Grangemouth | 72,265 | Clackmannanshire; Falkirk |
| Angus and Perthshire Glens | 77,006 | Angus; Perth and Kinross |
| Arbroath and Broughty Ferry | 76,810 | Angus; Dundee City |
| Argyll, Bute and South Lochaber | 71,707 | Argyll and Bute; Highland |
| Ayr, Carrick and Cumnock | 72,057 | East Ayrshire; South Ayrshire |
| Bathgate and Linlithgow | 71,650 | Falkirk; West Lothian |
| Berwickshire, Roxburgh and Selkirk | 74,687 | Scottish Borders |
| Caithness, Sutherland and Easter Ross | 75,173 | Highland |
| Central Ayrshire | 69,779 | North Ayrshire; South Ayrshire |
| Coatbridge and Bellshill | 72,507 | North Lanarkshire |
| Cowdenbeath and Kirkcaldy | 70,329 | Fife |
| Cumbernauld and Kirkintilloch | 70,579 | East Dunbartonshire; North Lanarkshire |
| Dumfries and Galloway | 76,863 | Dumfries and Galloway |
| Dumfriesshire, Clydesdale and Tweeddale | 70,738 | Dumfries and Galloway; Scottish Borders; South Lanarkshire |
| Dundee Central | 75,298 | Dundee City |
| Dunfermline and Dollar | 70,725 | Clackmannanshire; Fife |
| East Kilbride and Strathaven | 75,161 | South Lanarkshire |
| East Renfrewshire | 72,959 | East Renfrewshire |
| Edinburgh East and Musselburgh | 75,705 | City of Edinburgh; East Lothian |
| Edinburgh North and Leith | 76,770 | City of Edinburgh |
| Edinburgh South | 70,980 | City of Edinburgh |
| Edinburgh South West | 73,315 | City of Edinburgh |
| Edinburgh West | 76,723 | City of Edinburgh |
| Falkirk | 75,067 | Falkirk |
| Glasgow East | 69,748 | Glasgow City |
| Glasgow North | 73,210 | Glasgow City |
| Glasgow North East | 75,236 | Glasgow City |
| Glasgow South | 71,344 | Glasgow City |
| Glasgow South West | 70,431 | Glasgow City |
| Glasgow West | 72,499 | Glasgow City |
| Glenrothes and Mid Fife | 69,734 | Fife |
| Gordon and Buchan | 70,238 | Aberdeenshire |
| Hamilton and Clyde Valley | 74,577 | South Lanarkshire |
| Inverclyde and Renfrewshire West | 70,418 | Inverclyde; Renfrewshire |
| Inverness, Skye and West Ross-shire | 76,903 | Highland |
| Kilmarnock and Loudoun | 74,801 | East Ayrshire |
| Livingston | 75,454 | West Lothian |
| Lothian East | 71,287 | East Lothian |
| Mid Dunbartonshire | 75,099 | East Dunbartonshire; North Lanarkshire |
| Midlothian | 71,210 | Midlothian |
| Moray West, Nairn and Strathspey | 76,237 | Highland; Moray |
| Motherwell, Wishaw and Carluke | 72,318 | North Lanarkshire; South Lanarkshire |
| Na h-Eileanan an Iar | 21,177 | Na h-Eileanan an Iar |
| North Ayrshire and Arran | 73,588 | North Ayrshire |
| North East Fife | 70,452 | Fife |
| Orkney and Shetland | 34,824 | Orkney Islands; Shetland Islands |
| Paisley and Renfrewshire North | 69,941 | Glasgow City; Renfrewshire |
| Paisley and Renfrewshire South | 69,813 | Renfrewshire |
| Perth and Kinross-shire | 76,320 | Perth and Kinross |
| Rutherglen | 71,612 | South Lanarkshire |
| Stirling and Strathallan | 77,008 | Perth and Kinross; Stirling |
| West Aberdeenshire and Kincardine | 73,634 | Aberdeenshire |
| West Dunbartonshire | 70,286 | Glasgow City; West Dunbartonshire |

### Wales

Constituencies in Wales from June 2024 :
| Constituency | Electorate March 2020 | Council area |
| Aberafan Maesteg | 69,817 | Bridgend; Neath Port Talbot |
| Alyn and Deeside | 75,695 | Flintshire |
| Bangor Aberconwy | 70,468 | Conwy; Denbighshire; Gwynedd |
| Blaenau Gwent and Rhymney | 71,079 | Blaenau Gwent; Caerphilly |
| Brecon, Radnor and Cwm Tawe | 72,113 | Neath Port Talbot; Powys |
| Bridgend | 70,770 | Bridgend |
| Caerfyrddin | 72,683 | Carmarthenshire |
| Caerphilly | 72,458 | Caerphilly |
| Cardiff East | 72,463 | Cardiff |
| Cardiff North | 71,143 | Cardiff; Rhondda Cynon Taf |
| Cardiff South and Penarth | 72,269 | Cardiff; Vale of Glamorgan |
| Cardiff West | 73,947 | Cardiff; Rhondda Cynon Taf |
| Ceredigion Preseli | 74,063 | Ceredigion; Pembrokeshire |
| Clwyd East | 76,395 | Denbighshire; Flintshire; Wrexham |
| Clwyd North | 76,150 | Conwy; Denbighshire |
| Dwyfor Meirionnydd | 72,533 | Denbighshire; Gwynedd |
| Gower | 76,801 | Swansea |
| Llanelli | 69,895 | Carmarthenshire |
| Merthyr Tydfil and Aberdare | 74,805 | Merthyr Tydfil; Rhondda Cynon Taf |
| Mid and South Pembrokeshire | 76,820 | Pembrokeshire |
| Monmouthshire | 72,681 | Monmouthshire |
| Montgomeryshire and Glyndŵr | 74,223 | Powys; Wrexham |
| Neath and Swansea East | 74,705 | Neath Port Talbot; Swansea |
| Newport East | 76,159 | Newport |
| Newport West and Islwyn | 76,234 | Caerphilly; Newport |
| Pontypridd | 73,743 | Rhondda Cynon Taf |
| Rhondda and Ogmore | 73,557 | Bridgend; Rhondda Cynon Taf |
| Swansea West | 74,612 | Swansea |
| Torfaen | 70,591 | Torfaen |
| Vale of Glamorgan | 70,426 | Vale of Glamorgan |
| Wrexham | 70,964 | Wrexham |
| Ynys Môn | 52,415 | Isle of Anglesey |

### Northern Ireland

Constituencies in Northern Ireland from June 2024 :
| Constituency | Electorate March 2020 | Council area |
| Belfast East | 70,076 | Belfast; Lisburn and Castlereagh |
| Belfast North | 71,372 | Antrim and Newtownabbey; Belfast |
| Belfast South and Mid Down | 71,978 | Belfast; Lisburn and Castlereagh; Newry, Mourne and Down |
| Belfast West | 71,921 | Belfast; Lisburn and Castlereagh |
| East Antrim | 69,936 | Antrim and Newtownabbey; Causeway Coast and Glens; Mid and East Antrim |
| East Londonderry | 72,213 | Causeway Coast and Glens; Derry City and Strabane |
| Fermanagh and South Tyrone | 74,643 | Armagh City, Banbridge and Craigavon; Fermanagh and Omagh; Mid Ulster |
| Foyle | 69,890 | Derry City and Strabane |
| Lagan Valley | 76,332 | Armagh City, Banbridge and Craigavon; Lisburn and Castlereagh |
| Mid Ulster | 70,094 | Armagh City, Banbridge and Craigavon; Mid Ulster |
| Newry and Armagh | 74,585 | Armagh City, Banbridge and Craigavon; Newry, Mourne and Down |
| North Antrim | 71,165 | Causeway Coast and Glens; Mid and East Antrim |
| North Down | 70,412 | Ards and North Down; Belfast |
| South Antrim | 71,646 | Antrim and Newtownabbey; Lisburn and Castlereagh |
| South Down | 71,772 | Armagh City, Banbridge and Craigavon; Newry, Mourne and Down |
| Strangford | 70,070 | Ards and North Down; Newry, Mourne and Down |
| Upper Bann | 76,969 | Armagh City, Banbridge and Craigavon |
| West Tyrone | 70,614 | Derry City and Strabane; Fermanagh and Omagh; Mid Ulster |

## 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 and List of United Kingdom Parliament constituencies (2024–present) by region for further details.

### Summary of main boundary changes for the 2024 election

* Scotland – Lost 2 seats.
* Wales – Lost 8 seats
* Northern Ireland – No extra or fewer seats allocated.
* England – Gained 10 seats