List of Parliamentary constituencies in East Sussex

  Conservative †   Labour ‡   Liberal Democrat ¤   Green Party ♣

Constituency[nb 1]	Electorate[1]	Majority[2][nb 2]	Member of Parliament[2]		Nearest opposition[2]		Electoral wards[3][4]	Map
Bexhill and Battle CC	81,963	26,059		Huw Merriman †		Christine Bayliss ‡	Rother District Council: Battle Town, Central, Collington, Crowhurst, Darwell, Ewhurst and Sedlescombe, Kewhurst, Old Town, Rother Levels, Sackville, St Marks, St Michaels, St Stephens, Salehurst, Sidley, Ticehurst and Etchingham. Wealden District Council: Cross In Hand/Five Ashes, Heathfield East, Heathfield North and Central, Herstmonceux, Ninfield and Hooe with Wartling, Pevensey and Westham.
Brighton, Kemptown BC	69,833	8,061		Lloyd Russell-Moyle ‡		Joe Miller †	Brighton and Hove City Council: East Brighton, Moulsecoomb and Bevendean, Queen’s Park, Rottingdean Coastal, Woodingdean. Lewes District Council: East Saltdean and Telscombe Cliffs, Peacehaven East, Peacehaven North, Peacehaven West.
Brighton, Pavilion BC	79,057	19,940		Caroline Lucas ♣		Adam Imanpour ‡	Brighton and Hove City Council: Hanover and Elm Grove, Hollingbury and Stanmer, Patcham, Preston Park, Regency, St Peter’s and North Laine, Withdean.
Eastbourne BC	79,307	4,331		Caroline Ansell †		Stephen Lloyd ¤	Eastbourne Borough Council: Devonshire, Hampden Park, Langney, Meads, Old Town, Ratton, St Anthony’s, Sovereign, Upperton; Wealden District Council: Willingdon
Hastings and Rye CC	80,524	4,043		Sally-Ann Hart †		Peter Chowney ‡	Hastings Borough Council: Ashdown, Baird, Braybrooke, Castle, Central St Leonards, Conquest, Gensing, Hollington, Maze Hill, Old Hastings, Ore, St Helens, Silverhill, Tressell, West St Leonards, Wishing Tree. Rother District Council: Brede Valley, Eastern Rother, Marsham, Rye.
Hove BC	74,313	17,044		Peter Kyle ‡		Robert Nemeth †	Brighton and Hove City Council: Brunswick and Adelaide, Central Hove, Goldsmid, Hangleton and Knoll, North Portslade, South Portslade, Stanford, Westbourne, Wish.
Lewes CC	71,503	2,457		Maria Caulfield †		Oli Henman ¤	Lewes District Council: Barcombe and Hamsey, Chailey and Wivelsfield, Ditchling and Westmeston, Kingston, Lewes Bridge, Lewes Castle, Lewes Priory, Newhaven Denton and Meeching, Newhaven Valley, Newick, Ouse Valley and Ringmer, Plumpton, Streat, East Chiltington and St John (Without), Seaford Central, Seaford East, Seaford North, Seaford South, Seaford West. Wealden District Council: Alfriston, East Dean, Polegate North, Polegate South.
Wealden CC	82,998	25,655		Nus Ghani †		Chris Bowers ¤	Wealden District Council: Buxted and Maresfield, Chiddingly and East Hoathly, Crowborough East, Crowborough Jarvis Brook, Crowborough North, Crowborough St. Johns, Crowborough West, Danehill/Fletching/Nutley, Forest Row, Framfield, Frant/Withyham, Hailsham Central and North, Hailsham East, Hailsham South and West, Hartfield, Hellingly, Horam, Mayfield, Rotherfield, Uckfield Central, Uckfield New Town, Uckfield North, Uckfield Ridgewood, Wadhurst.

Name	Pre-2010 Boundaries	Post-2010 Boundaries
Bexhill and Battle CC Brighton, Kemptown BC Brighton, Pavilion BC Eastbourne BC Hastings and Rye CC Hove BC Lewes CC Wealden CC	Parliamentary constituencies in East Sussex	Proposed Revision

Current proposals by the Boundary Commission for England would retain these 8 constituencies, with changes to realign constituency boundaries with the boundaries of current local government wards, and to reduce the electoral disparity between constituencies. These changes will be implemented at the 2010 United Kingdom general election.

The Boundary Commission for England submitted their final proposals in respect of the Sixth Periodic Review of Westminster Constituencies (the 2018 review) in September 2018. Although the proposals were immediately laid before Parliament they were not brought forward by the Government for approval. Accordingly, they did not come into effect for the 2019 election which took place on 12 December 2019, and which was contested using the constituency boundaries in place since 2010.

Under the terms of the Parliamentary Voting System and Constituencies Act 2011, the Sixth Review was based on reducing the total number of MPs from 650 to 600 and a strict electoral parity requirement that the electorate of all constituencies should be within a range of 5% either side of the electoral quota.

On 24 March 2020, the Minister of State for the Cabinet Office, Chloe Smith, issued a written statement to Parliament setting out the Government's thinking with regard to parliamentary boundaries.[5] Subsequently, the Parliamentary Constituencies Act 2020[6] was passed into law on 14 December 2020. This formally removed the duty to implement the 2018 review and set out the framework for future boundary reviews. The Act provided that the number of constituencies should remain at the current level of 650, rather than being reduced to 600, while retaining the requirement that the electorate should be no more than +/- 5% from the electoral quota.

The Act specified that the next review should be completed no later than 1 July 2023 and the Boundary Commission formally launched the 2023 Review on 5 January 2021.[7] See 2023 Periodic Review of Westminster constituencies for further details.

Primary data source: House of Commons research briefing - General election results from 1918 to 2019[8]

2019

The number of votes cast for each political party who fielded candidates in constituencies comprising East Sussex in the 2019 general election were as follows:

Party	Votes	%	Change from 2017	Seats	Change from 2017
Conservative	197,728	44.2%	0.1%	5	1
Labour	121,935	27.3%	4.9%	2	0
Liberal Democrats	75,754	16.9%	2.8%	0	1
Greens	45,128	10.1%	2.3%	1	0
Brexit	4,738	1.1%	new	0	0
Others	1,898	0.4%	1.2%	0	0
Total	447,181	100.0		8

A cell marked → (with a different colour background to the preceding cell) indicates that the previous MP continued to sit under a new party name.

The Local Government Act 1972 moved the District of Mid Sussex into West Sussex from East Sussex. This change was put into effect in the Parliamentary constituency boundaries for the 1983 boundary changes.

• List of Parliamentary constituencies in the South East (region)