The county of Merseyside created in 1974 has 15 parliamentary constituencies — (sub-classified into 12 of borough type and three of county status affecting the level of expenses permitted and status of returning officer). The area, centred on its largest city of Liverpool, has since that year elected a majority of Labour Party MPs moreover since 1997 at least 13 of 15 seats have been held or won by the party at each general election. The two other largest parties nationally in England have to date won intermittently in the two larger seats within the four in the Wirral, the peninsula facing Liverpool, and best having alternately represented the seat centred on the coastal strip in and around the leisure resort of Southport. The latter town includes Birkdale and Ainsdale beach and has not since the seat was created in 1885 sided with the Labour Party. The bulk of seats especially towards the east and the centre of Liverpool have not sided with the Conservative Party since that party actively supported the National Labour Organisation (1931-1947).

  † Conservative   ‡ Labour

More information Constituency, Electorate ...

Constituency[nb 1]	Electorate[1]	Majority[2][nb 2]	Member of Parliament[2]		Nearest opposition[2]		Map
Birkenhead BC	63,762	17,705		Mick Whitley‡		Frank Field (Birkenhead Social Justice)
Bootle BC	74,832	34,556		Peter Dowd‡		Tarsilo Onuluk†
Garston and Halewood BC	76,116	31,624		Maria Eagle‡		Neva Novaky†
Knowsley BC	84,060	39,942		George Howarth‡		Rushi Millns†
Liverpool, Riverside BC	80,310	37,043		Kim Johnson‡		Sean Malkeson†
Liverpool, Walton BC	62,628	30,520		Dan Carden‡		Alex Phillips†
Liverpool, Wavertree BC	63,458	27,085		Paula Barker‡		Catherine Mulhern†
Liverpool, West Derby BC	65,640	29,984		Ian Byrne‡		Tom Bradley†
Sefton Central CC	69,760	15,122		Bill Esterson‡		Wazz Mughal†
Southport BC	70,837	4,147		Damien Moore†		Liz Savage‡
St Helens North BC	75,593	12,209		Conor McGinn‡		Joel Charles†
St Helens South and Whiston BC	79,058	19,122		Marie Rimmer‡		Richard Short†
Wallasey BC	66,310	18,322		Angela Eagle‡		James Baker†
Wirral South CC	57,280	6,105		Alison McGovern‡		Stewart Gardiner†
Wirral West CC	55,550	3,003		Margaret Greenwood‡		Laura Evans†

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Under the Fifth Periodic Review of Westminster constituencies, the Boundary Commission for England decided to reduce the number of seats in Merseyside from 16 to 15, leading to significant changes. The two Knowsley seats were abolished, with a single Knowsley constituency created. Parts of Knowsley North and Sefton East were added to the new constituency of Sefton Central, which replaced Crosby, and parts of Knowsley South were added to the new constituency of Garston and Halewood, which replaced Liverpool, Garston.

See 2023 Periodic Review of Westminster constituencies for further details.

Following the abandonment of the Sixth Periodic Review (the 2018 review), the Boundary Commission for England formally launched the 2023 Review on 5 January 2021.^[3] Initial proposals were published on 8 June 2021 and, following two periods of public consultation, revised proposals were published on 8 November 2022. The final proposals were published on 28 June 2023.

The commission has proposed that Merseyside be combined with Cheshire as a sub-region of the North West Region, with the creation of two cross-county boundary constituencies of Ellesmere Port and Bromborough, and Widnes and Halewood, which avoids the need for a constituency which spans the River Mersey. As a consequence, Garston and Halewood would be abolished and Liverpool Garston re-established, and Wirral South would be abolished, with its contents being redistributed to Birkenhead, Ellesmere Port and Bromborough, and Wirral West. Four wards in the Lancashire borough of West Lancashire would be included in Southport.^[4][5]

The following constituencies are proposed:

Containing electoral wards from Knowsley

• Knowsley
• Liverpool West Derby (part)
• St Helens South and Whiston (part)
• Widnes and Halewood (part also in Cheshire West and Chester)

Containing electoral wards from Liverpool

• Liverpool Garston
• Liverpool Riverside
• Liverpool Walton (part)
• Liverpool Wavertree
• Liverpool West Derby (part)

Containing electoral wards from St Helens

• St Helens North
• St Helens South and Whiston (part)

Containing electoral wards from Sefton

• Bootle
• Liverpool Walton (part)
• Sefton Central
• Southport (part also in West Lancashire)

Containing electoral wards from Wirral

• Birkenhead
• Ellesmere Port and Bromborough (part also in Cheshire West and Chester)
• Wallasey
• Wirral West

Primary data source: House of Commons research briefing - General election results from 1918 to 2019^[6]

2019

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

More information Party, Votes ...

Party	Votes	%	Change from 2017	Seats	Change from 2017
Labour	463,371	65.2%	6.0%	14	0
Conservative	143,431	20.2%	1.2%	1	0
Liberal Democrats	39,591	5.6%	1.3%	0	0
Brexit	33,392	4.7%	new	0	0
Greens	19,371	2.7%	1.2%	0	0
Others	11,443	1.6%	0.0%	0	0
Total	710,599	100.0		15

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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.

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