List of Parliamentary constituencies in Lancashire

  † Conservative   ‡ Labour

Constituency[nb 1]	Electorate[1]	Majority[2][nb 2]	Member of Parliament[2]		Nearest opposition[2]		Map
Blackburn BC	71,234	18,304		Kate Hollern‡		Claire Gill†
Blackpool North and Cleveleys BC	63,692	8,596		Paul Maynard†		Chris Webb‡
Blackpool South BC	57,690	3,690		Scott Benton†		Gordon Marsden‡
Burnley BC	64,345	1,352		Antony Higginbotham†		Julie Cooper‡
Chorley CC	78,177	17,392		Lindsay Hoyle (The Speaker)		Mark Brexit-Smith (Independent)
Fylde CC	66,847	16,611		Mark Menzies†		Martin Mitchell‡
Hyndburn BC	70,842	2,961		Sara Britcliffe†		Graham Jones‡
Lancaster and Fleetwood CC	70,059	2,380		Cat Smith‡		Louise Thistlethwaite†
Morecambe and Lunesdale CC	67,397	6,354		David Morris†		Lizzi Collinge‡
Pendle BC	65,292	6,186		Andrew Stephenson†		Azhar Ali‡
Preston BC	59,672	12,146		Mark Hendrick‡		Michele Scott†
Ribble Valley CC	79,247	18,439		Nigel Evans†		Giles Bridge‡
Rossendale and Darwen BC	72,770	9,522		Jake Berry†		Alyson Barnes‡
South Ribble CC	75,351	11,199		Katherine Fletcher†		Kim Snape‡
West Lancashire CC	73,347	8,336		Rosie Cooper‡		Jack Gilmore†
Wyre and Preston North CC	74,775	16,781		Ben Wallace†		Joanne Ainscough‡

Before the 2010 United Kingdom general election, the Boundary Commission for England recommended that the county be divided into 16 constituencies, with a new constituency of Wyre and Preston North CC and boundaries altered and seats renamed to fit.

Name	Boundaries before 2010
Blackburn BC Blackpool North and Fleetwood BC Blackpool South BC Burnley BC Chorley CC Fylde CC Hyndburn BC Lancaster and Wyre CC Morecambe and Lunesdale CC Pendle BC Preston BC Ribble Valley CC Rossendale and Darwen BC South Ribble CC West Lancashire CC	Parliamentary constituencies in Lancashire

Name	Boundaries since 2010
Blackburn BC Blackpool North and Cleveleys BC Blackpool South BC Burnley BC Chorley CC Fylde CC Hyndburn BC Lancaster and Fleetwood CC Morecambe and Lunesdale CC Pendle BC Preston BC Ribble Valley CC Rossendale and Darwen BC South Ribble CC West Lancashire CC Wyre and Preston North CC	Proposed Revised constituencies in Lancashire

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.[3] Subsequently, the Parliamentary Constituencies Act 2020[4] 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.[5] 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[6]

2019

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

Party	Votes	%	Change from 2017	Seats	Change from 2017
Conservative	331,248	46.2%	1.2%	11	3
Labour	270,733	37.8%	10.4%	4	4
Liberal Democrats	37,268	5.2%	1.5%	0	0
Greens	19,707	2.8%	1.5%	0	0
Brexit	16,188	2.3%	new	0	0
Others1	41,323	5.7%	3.9%	1	1
Total	716,467	100.0		16

¹Includes The Speaker, Lyndsay Hoyle, standing in Chorley

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.

• List of Parliamentary constituencies in the North West (region)
• List of United Kingdom Parliament constituencies
• 2005 UK general election results in Lancashire
• 2010 United Kingdom general election result in Lancashire