The ceremonial county of Lancashire (which includes the unitary authorities of Blackburn with Darwen and Blackpool) is divided into sixteen parliamentary constituencies: four borough constituencies and twelve county constituencies. Two seats cross the county boundary - one is shared with Cumbria and one with Merseyside.
See 2023 review of Westminster constituencies for further details
For the 2023 review of Westminster constituencies, which redrew the constituency map ahead of the 2024 United Kingdom general election, the Boundary Commission for England opted to combine Lancashire with Cumbria as a sub-region of the North West Region, with the existing seat of Morecambe and Lunesdale extending into southern Cumbria to create a cross-county boundary constituency. Wyre and Preston North was abolished, with its contents being distributed to five neighbouring constituencies. As a consequence, Lancaster and Fleetwood, and Blackpool North and Cleveleys reverted back to the previous names of Lancaster and Wyre, and Blackpool North and Fleetwood respectively. Other proposed changes included the expansion of Pendle to become Pendle and Clitheroe. Four wards in the borough of West Lancashire were incorporated into the Merseyside constituency of Southport.
The following constituencies were proposed:
Containing electoral wards from Blackburn with Darwen
Containing electoral wards from Blackpool
Containing electoral wards from Burnley
Containing electoral wards from Chorley
Containing electoral wards from Fylde
Containing electoral wards from Hyndburn
Containing electoral wards from Lancaster
Containing electoral wards from Pendle
Containing electoral wards from Preston
Containing electoral wards from Ribble Valley
Containing electoral wards from Rossendale
Containing electoral wards from South Ribble
Containing electoral wards from West Lancashire
Containing electoral wards from Wyre
Under the fifth periodic review of Westminster constituencies, the Boundary Commission for England decided to increase Lancashire's representation from 15 to 16 constituencies, with the creation of Wyre and Preston North CC. Lancaster and Wyre was reconfigured and became Lancaster and Fleetwood, and Blackpool North and Fleetwood became Blackpool North and Cleveleys. Other changes were made to realign constituency boundaries with the boundaries of current local government wards, and to reduce the electoral disparity between constituencies.
Primary data source: House of Commons research briefing - General election results from 1918 to 2019
The number of votes cast for each political party who fielded candidates in constituencies comprising Lancashire in the 2024 general election were as follows:
<sup>1</sup>1983 & 1987 - SDPâÂÂLiberal Alliance
<sup>2</sup>Standing in Chorley, unopposed by the 3 main parties.
<nowiki>*</nowiki> Included in Other
<sup>1</sup>1983 & 1987 - SDPâÂÂLiberal Alliance
<sup>2</sup>Lindsay Hoyle
A cell marked â (with a different colour background to the preceding cell) indicates that the previous MP continued to sit under a new party name.