# Parliamentary constituencies in Lancashire

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.

## Constituencies

† Conservative  ‡ Labour The Speaker ±Reform UK ¤Liberal Democrat ¥Green Independent
| Constituency | Electorate | Majority | Member of Parliament | Nearest opposition |
| Blackburn BC | 70,586 | 132 | Adnan Hussain (Independent) | Kate Hollern ‡ |
| Blackpool North and Fleetwood BC | 75,396 | 4,647 | Lorraine Beavers ‡ | Paul Maynard † |
| Blackpool South BC | 76,071 | 6,868 | Chris Webb ‡ | Mark Butcher ± |
| Burnley CC | 75,436 | 3,420 | Oliver Ryan ‡ | Gordon Birtwistle ¤ |
| Chorley CC | 74,568 | 20,575 | Lindsay Hoyle (The Speaker) | Mark Tebbutt ¥ |
| Fylde CC | 75,114 | 561 | Andrew Snowden † | Tom Calver ‡ |
| Hyndburn CC | 80,617 | 1,687 | Sarah Smith ‡ | Sara Britcliffe † |
| Lancaster and Wyre CC | 74,760 | 9,253 | Cat Smith ‡ | Peter Cartridge † |
| Morecambe and Lunesdale CC | 69,254 | 5,815 | Lizzi Collinge ‡ | David Morris † |
| Pendle and Clitheroe CC | 65,292 | 902 | Jonathan Hinder ‡ | Andrew Stephenson † |
| Preston BC | 55,937 | 5,291 | Mark Hendrick ‡ | Michael Lavalette (Independent) |
| Ribble Valley CC | 77,437 | 856 | Maya Ellis ‡ | Nigel Evans † |
| Rossendale and Darwen CC | 73,443 | 5,628 | Andy MacNae ‡ | Jake Berry † |
| South Ribble CC | 75,116 | 6,501 | Paul Foster ‡ | Katherine Fletcher † |
| Southport CC | 74,775 | 5,789 | Patrick Hurley ‡ | Damien Moore † |
| West Lancashire CC | 73,347 | 8,336 | Ashley Dalton ‡ | Mike Prendergast † |

## Boundary changes
### 2024

See 2023 Periodic Review of Westminster constituencies for further details
| Former name | Boundaries 2010–2024 | Current name | Boundaries 2024–present |
| 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 | Blackburn BC Blackpool North and Fleetwood BC Blackpool South BC Burnley CC Chorley CC Fylde CC Hyndburn CC Lancaster and Wyre CC Morecambe and Lunesdale CC Pendle and Clitheroe CC Preston BC Ribble Valley CC Rossendale and Darwen CC South Ribble CC Southport CC West Lancashire CC | Lancashire 2024–present |
For the 2023 Periodic 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
* Blackburn
* Rossendale and Darwen (part)
Containing electoral wards from Blackpool
* Blackpool North and Fleetwood (part)
* Blackpool South
Containing electoral wards from Burnley
* Burnley (part)
Containing electoral wards from Chorley
* Chorley
* South Ribble (part)
Containing electoral wards from Fylde
* Fylde (part)
Containing electoral wards from Hyndburn
* Hyndburn (part)
Containing electoral wards from Lancaster
* Lancaster and Wyre (part)
* Morecambe and Lunsdale (part also in District of South Lakeland in Cumbria)
Containing electoral wards from Pendle
* Burnley (part)
* Pendle and Clitheroe (part)
Containing electoral wards from Preston
* Preston
* Ribble Valley (part)
Containing electoral wards from Ribble Valley
* Pendle and Clitheroe (part)
* Ribble Valley (part)
Containing electoral wards from Rossendale
* Hyndburn (part)
* Rossendale and Darwen (part)
Containing electoral wards from South Ribble
* Ribble Valley (part)
* South Ribble (part)
Containing electoral wards from West Lancashire
* Southport (part also in the Merseyside borough of Sefton)
* West Lancashire
Containing electoral wards from Wyre
* Blackpool North and Fleetwood (part)
* Fylde (part)
* Lancaster and Wyre (part)

### 2010

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.
| Former name | Boundaries 1997-2010 | Current name | Boundaries 2010–2024 |
| 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 | 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 |

## Results history

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

### 2024

The number of votes cast for each political party who fielded candidates in constituencies comprising Lancashire in the 2024 general election were as follows:
| Party | Votes | % | Change from 2019 | Seats | Change from 2019 |
| Labour | 231,808 | 36.3% | 1.5% | 13 | 9 |
| Conservative | 151,797 | 23.7% | 22.5% | 1 | 10 |
| Reform | 112,124 | 17.5% | 15.2% | 0 | 0 |
| Liberal Democrats | 38,345 | 6.0% | 0.8% | 0 | 0 |
| Greens | 35,957 | 5.6% | 2.8 | 0 | 0 |
| Speaker | 25,238 | 3.9% | 0.2 | 1 | 0 |
| Others | 44,000 | 6.9% | 5.1% | 1 | 1 |
| Total | 639,269 | 100.0 | | 16 | |

### Percentage votes

| Election year | 1983 | 1987 | 1992 | 1997 | 2001 | 2005 | 2010 | 2015 | 2017 | 2019 | 2024 |
| Labour | 29.4 | 34.4 | 38.9 | 49.2 | 46.7 | 41.4 | 35.2 | 37.8 | 48.2 | 37.8 | 36.3 |
| Conservative | 48.2 | 46.3 | 45.0 | 34.2 | 36.4 | 35.0 | 38.7 | 39.3 | 45.0 | 46.2 | 23.7 |
| Reform | - | - | - | - | - | - | - | - | - | 2.3 | 17.5 |
| Liberal Democrat$^1$ | 21.9 | 18.9 | 15.2 | 12.7 | 13.3 | 17.0 | 18.1 | 4.8 | 3.7 | 5.2 | 6.0 |
| Green Party | - | * | * | * | * | * | 0.6 | 2.7 | 1.3 | 2.8 | 5.6 |
| UKIP | - | - | - | * | * | * | .8 | 14.3 | 1.5 | * | * |
| The Speaker$^2$ | - | - | - | - | - | - | - | - | - | 3.7 | 3.9 |
| Other | 0.5 | 0.3 | 0.9 | 3.9 | 3.6 | 6.5 | 3.6 | 1.2 | 0.3 | 2.0 | 6.9 |
$^1$1983 & 1987 - SDP-Liberal Alliance
$^2$Standing in Chorley, unopposed by the 3 main parties.
* Included in Other

### Seats

| Election year | 1983 | 1987 | 1992 | 1997 | 2001 | 2005 | 2010 | 2015 | 2017 | 2019 | 2024 |
| Labour | 3 | 3 | 7 | 13 | 13 | 12 | 6 | 8 | 8 | 4 | 13 |
| Conservative | 13 | 13 | 9 | 2 | 2 | 3 | 9 | 8 | 8 | 11 | 1 |
| The Speaker$^2$ | - | - | - | - | - | - | - | - | - | 1 | 1 |
| Independent | - | - | - | - | - | - | - | - | - | - | 1 |
| Liberal Democrat$^1$ | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
| The Speaker$^2$ | - | - | - | - | - | - | - | - | - | 1 | 1 |
| Total | 16 | 16 | 16 | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 16 |
$^1$1983 & 1987 - SDP-Liberal Alliance
$^2$Lindsay Hoyle

### Maps
#### 1885-1910

* 1885
* 1886
* 1892
* 1895
* 1900
* 1906
* Jan 1910
* Dec 1910

#### 1918-1945

* 1918
* 1922
* 1923
* 1924
* 1929
* 1931
* 1935
* 1945

#### 1950-1979

* 1950
* 1951
* 1955
* 1959
* 1964
* 1966
* 1970
* Feb 1974
* Oct 1974
* 1979

#### 1983-present

* 1983
* 1987
* 1992
* 1997
* 2001
* 2005
* 2010
* 2015
* 2017
* 2019

#### 2024-present (including two cross-county constituencies)

* 2024

## Historical representation by party

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.

### 1885 to 1918
#### Lancashire area

Conservative  Labour  Liberal  Liberal-Labour  Liberal Unionist
| Constituency | 1885 | 86 | 1886 | 86 | 87 | 89 | 90 | 92 | 1892 | 93 | 95 | 1895 | 98 | 00 | 1900 | 00 | 02 | 03 | 04 | 1906 | Jan 10 | Dec 10 | 13 | 15 | 17 |
| Accrington | Grafton | Grafton | Hodge | Hodge | Hodge | Hodge | Hodge | Hodge | Leese | Leese | Leese | Leese | Leese | Leese | Leese | Leese | Leese | Leese | Leese | Leese | Baker | Baker | Baker | Baker | Baker |
| Barrow-in-Furness | D. Duncan | Caine | → | → | → | → | J. Duncan | J. Duncan | Cayzer | Cayzer | Cayzer | Cayzer | Cayzer | Cayzer | Cayzer | Cayzer | Cayzer | Cayzer | Cayzer | C. Duncan | C. Duncan | C. Duncan | C. Duncan | C. Duncan | C. Duncan |
| Blackburn | Peel | Peel | Hornby | Hornby | Hornby | Hornby | Hornby | Hornby | Hornby | Hornby | Hornby | Hornby | Hornby | Hornby | Hornby | Hornby | Hornby | Hornby | Hornby | Hornby | Barclay | Norman | Norman | Norman | Norman |
| Blackburn | Coddington | Coddington | Coddington | Coddington | Coddington | Coddington | Coddington | Coddington | Coddington | Coddington | Coddington | Coddington | Coddington | Coddington | Coddington | Coddington | Coddington | Coddington | Coddington | Snowden | Snowden | Snowden | Snowden | Snowden | Snowden |
| Blackpool | Stanley | Stanley | Stanley | Ridley | Ridley | Ridley | Ridley | Ridley | Ridley | Ridley | Ridley | Ridley | Ridley | Ridley | Ridley | Worsley-Taylor | Worsley-Taylor | Worsley-Taylor | Worsley-Taylor | Ashley | Ashley | Ashley | Ashley | Ashley | Ashley |
| Burnley | Rylands | Rylands | → | → | Slagg | Balfour | Balfour | Balfour | Balfour | Stanhope | Stanhope | Stanhope | Stanhope | Stanhope | Mitchell | Mitchell | Mitchell | Mitchell | Mitchell | Maddison | Arbuthnot | Morrell | Morrell | Morrell | Morrell |
| Chorley | Feilden | Feilden | Feilden | Feilden | Feilden | Feilden | Feilden | Feilden | Feilden | Feilden | Lindsay | Lindsay | Lindsay | Lindsay | Lindsay | Lindsay | Lindsay | Lindsay | Lindsay | Lindsay | Lindsay | Lindsay | Hibbert | Hibbert | Hibbert |
| Clitheroe | Kay-Shuttleworth | Kay-Shuttleworth | Kay-Shuttleworth | Kay-Shuttleworth | Kay-Shuttleworth | Kay-Shuttleworth | Kay-Shuttleworth | Kay-Shuttleworth | Kay-Shuttleworth | Kay-Shuttleworth | Kay-Shuttleworth | Kay-Shuttleworth | Kay-Shuttleworth | Kay-Shuttleworth | Kay-Shuttleworth | Kay-Shuttleworth | Shackleton | Shackleton | Shackleton | Shackleton | Shackleton | Smith | Smith | Smith | Smith |
| Darwen | Gascoyne-Cecil | Gascoyne-Cecil | Gascoyne-Cecil | Gascoyne-Cecil | Gascoyne-Cecil | Gascoyne-Cecil | Gascoyne-Cecil | Gascoyne-Cecil | Huntington | Huntington | Huntington | J. Rutherford | J. Rutherford | J. Rutherford | J. Rutherford | J. Rutherford | J. Rutherford | J. Rutherford | J. Rutherford | J. Rutherford | Hindle | Rutherford | Rutherford | Rutherford | Rutherford |
| Lancaster | Marton | Marton | Williamson | Williamson | Williamson | Williamson | Williamson | Williamson | Williamson | Williamson | Williamson | Foster | Foster | Foster | Helme | Helme | Helme | Helme | Helme | Helme | Helme | Helme | Helme | Helme | Helme |
| N Lonsdale | Ainslie | Ainslie | Ainslie | Ainslie | Ainslie | Ainslie | Ainslie | Ainslie | Smith | Smith | Smith | R. Cavendish | R. Cavendish | R. Cavendish | R. Cavendish | R. Cavendish | R. Cavendish | R. Cavendish | → | Haddock | Haddock | Haddock | Haddock | Haddock | Haddock |
| Ormskirk | Forwood | Forwood | Forwood | Forwood | Forwood | Forwood | Forwood | Forwood | Forwood | Forwood | Forwood | Forwood | Stanley | Stanley | Stanley | Stanley | Stanley | Stanley | Stanley | Stanley | Stanley | Stanley | Stanley | Stanley | Stanley |
| Preston | Hanbury | Hanbury | Hanbury | Hanbury | Hanbury | Hanbury | Hanbury | Hanbury | Hanbury | Hanbury | Hanbury | Hanbury | Hanbury | Hanbury | Hanbury | Hanbury | Hanbury | Kerr | Kerr | Macpherson | Stanley | Stanley | Stanley | Stanley | Stanley |
| Preston | Tomlinson | Tomlinson | Tomlinson | Tomlinson | Tomlinson | Tomlinson | Tomlinson | Tomlinson | Tomlinson | Tomlinson | Tomlinson | Tomlinson | Tomlinson | Tomlinson | Tomlinson | Tomlinson | Tomlinson | Tomlinson | Tomlinson | Cox | Tobin | Tobin | Tobin | Broughton | Broughton |
| Rossendale | S. Cavendish | S. Cavendish | → | → | → | → | → | Maden | Maden | Maden | Maden | Maden | Maden | Mather | Mather | Mather | Mather | Mather | Harcourt | Harcourt | Harcourt | Harcourt | Harcourt | Harcourt | Maden |

#### Manchester area

Conservative  Independent Labour  Labour  Liberal  Liberal-Labour  Liberal Unionist
| Constituency | 1885 | 86 | 1886 | 89 | 90 | 1892 | 1895 | 97 | 99 | 00 | 1900 | 01 | 02 | 04 | 05 | 1906 | 08 | Jan 10 | Dec 10 | 11 | 12 | 14 | 15 | 16 | 17 | 18 | 18 |
| Ashton-under-Lyne | Addison | Addison | Addison | Addison | Addison | Addison | Whiteley | Whiteley | Whiteley | Whiteley | Whiteley | Whiteley | Whiteley | Whiteley | Whiteley | Scott | Scott | Scott | Aitken | Aitken | Aitken | Aitken | Aitken | Stanley | Stanley | Stanley | Stanley |
| Bolton | Bridgeman | Bridgeman | Bridgeman | Bridgeman | Bridgeman | Bridgeman | Harwood | Harwood | Harwood | Harwood | Harwood | Harwood | Harwood | Harwood | Harwood | Harwood | Harwood | Harwood | Harwood | Harwood | Taylor | Taylor | Taylor | Edge | Edge | Edge | Edge |
| Bolton | Shepherd-Cross | Shepherd-Cross | Shepherd-Cross | Shepherd-Cross | Shepherd-Cross | Shepherd-Cross | Shepherd-Cross | Shepherd-Cross | Shepherd-Cross | Shepherd-Cross | Shepherd-Cross | Shepherd-Cross | Shepherd-Cross | Shepherd-Cross | Shepherd-Cross | Gill | Gill | Gill | Gill | Gill | Gill | Tootill | Tootill | Tootill | Tootill | Tootill | Tootill |
| Bury | James | James | → | → | → | → | Kenyon | Kenyon | Kenyon | Kenyon | Kenyon | Kenyon | Toulmin | Toulmin | Toulmin | Toulmin | Toulmin | Toulmin | Toulmin | Toulmin | Toulmin | Toulmin | Toulmin | Toulmin | Toulmin | Toulmin | Toulmin |
| Eccles | Egerton | Egerton | Egerton | Egerton | Roby | Roby | Leigh-Clare | Leigh-Clare | Leigh-Clare | Leigh-Clare | Leigh-Clare | Leigh-Clare | Leigh-Clare | Leigh-Clare | Leigh-Clare | Pollard | Pollard | Pollard | Pollard | Pollard | Pollard | Pollard | Pollard | Pollard | Pollard | Pollard | Pollard |
| Gorton | Peacock | Peacock | Peacock | Mather | Mather | Mather | Hatch | Hatch | Hatch | Hatch | Hatch | Hatch | Hatch | → | → | Hodge | Hodge | Hodge | Hodge | Hodge | Hodge | Hodge | Hodge | Hodge | Hodge | Hodge | Hodge |
| Heywood | Hoyle | Hoyle | Hoyle | Hoyle | Hoyle | Snape | Kemp | Kemp | Kemp | Kemp | Kemp | Kemp | Kemp | → | → | Holden | Holden | Cawley | Cawley | Cawley | Cawley | Cawley | Illingworth | Illingworth | Illingworth | Illingworth | Illingworth |
| Ince | Blundell-Hollinshead-Blundell | Blundell-Hollinshead-Blundell | Blundell-Hollinshead-Blundell | Blundell-Hollinshead-Blundell | Blundell-Hollinshead-Blundell | Woods | Blundell-Hollinshead-Blundell | Blundell-Hollinshead-Blundell | Blundell-Hollinshead-Blundell | Blundell-Hollinshead-Blundell | Blundell-Hollinshead-Blundell | Blundell-Hollinshead-Blundell | Blundell-Hollinshead-Blundell | Blundell-Hollinshead-Blundell | Blundell-Hollinshead-Blundell | Walsh | Walsh | Walsh | Walsh | Walsh | Walsh | Walsh | Walsh | Walsh | Walsh | Walsh | Walsh |
| Leigh | Wright | Wright | Wright | Wright | Wright | Wright | Scott | Scott | Scott | Scott | Scott | Scott | Scott | Scott | Scott | Brunner | Brunner | Raffan | Raffan | Raffan | Raffan | Raffan | Raffan | Raffan | Raffan | Raffan | Raffan |
| Manchester E | Balfour | Balfour | Balfour | Balfour | Balfour | Balfour | Balfour | Balfour | Balfour | Balfour | Balfour | Balfour | Balfour | Balfour | Balfour | Horridge | Horridge | Sutton | Sutton | Sutton | Sutton | Sutton | Sutton | Sutton | Sutton | Sutton | Sutton |
| Manchester N | Hutton | Hutton | Schwann | Schwann | Schwann | Schwann | Schwann | Schwann | Schwann | Schwann | Schwann | Schwann | Schwann | Schwann | Schwann | Schwann | Schwann | Schwann | Schwann | Schwann | Schwann | Schwann | Schwann | Schwann | Schwann | Schwann | Schwann |
| Manchester NE | Fergusson | Fergusson | Fergusson | Fergusson | Fergusson | Fergusson | Fergusson | Fergusson | Fergusson | Fergusson | Fergusson | Fergusson | Fergusson | Fergusson | Fergusson | Clynes | Clynes | Clynes | Clynes | Clynes | Clynes | Clynes | Clynes | Clynes | Clynes | Clynes | Clynes |
| Manchester NW | Houldsworth | Houldsworth | Houldsworth | Houldsworth | Houldsworth | Houldsworth | Houldsworth | Houldsworth | Houldsworth | Houldsworth | Houldsworth | Houldsworth | Houldsworth | Houldsworth | Houldsworth | Churchill | Joynson-Hicks | Kemp | Kemp | Kemp | Randles | Randles | Randles | Randles | Randles | Randles | Randles |
| Manchester S | Roscoe | Roscoe | Roscoe | Roscoe | Roscoe | Roscoe | Campbell | Campbell | Campbell | Peel | Peel | Peel | Peel | Peel | Peel | Haworth | Haworth | Haworth | Haworth | Haworth | Glazebrook | Glazebrook | Glazebrook | Glazebrook | Glazebrook | Stoker | Stoker |
| Manchester SW | Hamilton | Hamilton | Bright | Bright | Bright | Bright | Galloway | Galloway | Galloway | Galloway | Galloway | Galloway | Galloway | Galloway | Galloway | Kelley | Kelley | Colefax | Needham | Needham | Needham | Needham | Needham | Needham | Needham | Needham | Needham |
| Middleton | Salis-Schwabe | → | T. Fielden | T. Fielden | T. Fielden | Hopwood | T. Fielden | Duckworth | Duckworth | Duckworth | E. Fielden | E. Fielden | E. Fielden | E. Fielden | E. Fielden | Adkins | Adkins | Adkins | Adkins | Adkins | Adkins | Adkins | Adkins | Adkins | Adkins | Adkins | Adkins |
| Oldham | Hibbert | Hibbert | Lees | Lees | Lees | Hibbert | Ascroft | Ascroft | Emmott | Emmott | Emmott | Emmott | Emmott | Emmott | Emmott | Emmott | Emmott | Emmott | Emmott | Denniss | Denniss | Denniss | Denniss | Denniss | Denniss | Denniss | Denniss |
| Oldham | Maclean | Maclean | Maclean | Maclean | Maclean | Cheetham | Oswald | Oswald | Runciman | Runciman | Churchill | Churchill | Churchill | → | → | Bright | Bright | Barton | Barton | Barton | Barton | Barton | Barton | Barton | Barton | Barton | Barton |
| Prestwich | Buckley | Buckley | Mowbray | Mowbray | Mowbray | Mowbray | F. Cawley | F. Cawley | F. Cawley | F. Cawley | F. Cawley | F. Cawley | F. Cawley | F. Cawley | F. Cawley | F. Cawley | F. Cawley | F. Cawley | F. Cawley | F. Cawley | F. Cawley | F. Cawley | F. Cawley | F. Cawley | F. Cawley | O. Cawley | Hopkinson |
| Radcliffe cum Farnworth | Leake | Leake | Leake | Leake | Leake | Leake | Mellor | Mellor | Mellor | Mellor | Taylor | Taylor | Taylor | Taylor | Taylor | Taylor | Taylor | Taylor | Taylor | Taylor | Taylor | Taylor | Taylor | Taylor | Taylor | Taylor | Taylor |
| Rochdale | Potter | Potter | Potter | Potter | Potter | Potter | Royds | Royds | Royds | Royds | Royds | Royds | Royds | Royds | Royds | Harvey | Harvey | Harvey | Harvey | Harvey | Harvey | Harvey | Harvey | Harvey | Harvey | Harvey | Harvey |
| Salford North | E. Hardcastle | E. Hardcastle | E. Hardcastle | E. Hardcastle | E. Hardcastle | Holland | Platt-Higgins | Platt-Higgins | Platt-Higgins | Platt-Higgins | Platt-Higgins | Platt-Higgins | Platt-Higgins | Platt-Higgins | Platt-Higgins | Byles | Byles | Byles | Byles | Byles | Byles | Byles | Byles | Byles | Tillett | Tillett | Tillett |
| Salford South | Mather | Mather | Howorth | Howorth | Howorth | Howorth | Howorth | Howorth | Howorth | Howorth | Groves | Groves | Groves | Groves | Groves | Belloc | Belloc | Belloc | Barlow | Barlow | Barlow | Barlow | Barlow | Barlow | Barlow | Barlow | Barlow |
| Salford West | Armitage | Armitage | Knowles | Knowles | Knowles | Knowles | Knowles | Knowles | Knowles | Knowles | Knowles | Knowles | Knowles | Knowles | Knowles | Agnew | Agnew | Agnew | Agnew | Agnew | Agnew | Agnew | Agnew | Agnew | Agnew | Agnew | Agnew |
| Stretford | Agnew | Agnew | Maclure | Maclure | Maclure | Maclure | Maclure | Maclure | Maclure | Maclure | Maclure | Cripps | Cripps | Cripps | Cripps | Nuttall | Nuttall | Nuttall | Nuttall | Nuttall | Nuttall | Nuttall | Nuttall | Nuttall | Nuttall | Nuttall | Nuttall |
| Westhoughton | F. Hardcastle | F. Hardcastle | F. Hardcastle | F. Hardcastle | F. Hardcastle | Stanley | Stanley | Stanley | Stanley | Stanley | Stanley | Stanley | Stanley | Stanley | Stanley | Wilson | Wilson | Wilson | Wilson | Wilson | Wilson | Wilson | Wilson | Wilson | Wilson | Wilson | Wilson |
| Wigan | Powell | Powell | Powell | Powell | Powell | Powell | Powell | Powell | Powell | Powell | Powell | Powell | Powell | Powell | Powell | Powell | Powell | Twist | Neville | Neville | Neville | Neville | Neville | Neville | Neville | Neville | Neville |

#### Merseyside area

Conservative  Irish Nationalist  Labour  Liberal  Liberal Unionist
| Constituency | 1885 | 1886 | 86 | 87 | 88 | 92 | 1892 | 93 | 1895 | 95 | 97 | 98 | 99 | 1900 | 02 | 03 | 05 | 1906 | 07 | Jan 10 | 10 | Dec 10 | 11 | 15 | 16 | 17 |
| Bootle | Sandys | Sandys | Sandys | Sandys | Sandys | Sandys | Sandys | Sandys | Sandys | Sandys | Sandys | Sandys | Sandys | Sandys | Sandys | Sandys | Sandys | Sandys | Sandys | Sandys | Sandys | Sandys | Bonar Law | Bonar Law | Bonar Law | Bonar Law |
| Liverpool Abercromby | Lawrence | Lawrence | Lawrence | Lawrence | Lawrence | Lawrence | Lawrence | Lawrence | Lawrence | Lawrence | Lawrence | Lawrence | Lawrence | Lawrence | Lawrence | Lawrence | Lawrence | Seely | Seely | Chaloner | Chaloner | Chaloner | Chaloner | Chaloner | Chaloner | Stanley |
| Liverpool E Toxteth | de Worms | de Worms | de Worms | de Worms | de Worms | de Worms | de Worms | de Worms | de Worms | Warr | Warr | Warr | Warr | Warr | Taylor | Taylor | Taylor | → | → | Hall | Hall | Hall | Hall | Hall | Rankin | Rankin |
| Liverpool Everton | Whitley | Whitley | Whitley | Whitley | Whitley | Willox | Willox | Willox | Willox | Willox | Willox | Willox | Willox | Willox | Willox | Willox | Harmood-Banner | Harmood-Banner | Harmood-Banner | Harmood-Banner | Harmood-Banner | Harmood-Banner | Harmood-Banner | Harmood-Banner | Harmood-Banner | Harmood-Banner |
| Liverpool Exchange | Baily | Duncan | Duncan | Neville | Neville | Neville | Neville | Neville | Bigham | Bigham | McArthur | McArthur | McArthur | McArthur | McArthur | McArthur | McArthur | Cherry | Cherry | Muspratt | Muspratt | Scott | Scott | Scott | Scott | Scott |
| Liverpool Kirkdale | Baden-Powell | Baden-Powell | Baden-Powell | Baden-Powell | Baden-Powell | Baden-Powell | Baden-Powell | Baden-Powell | Baden-Powell | Baden-Powell | Baden-Powell | MacIver | MacIver | MacIver | MacIver | MacIver | MacIver | MacIver | McArthur | McArthur | Kyffin-Taylor | Kyffin-Taylor | Kyffin-Taylor | Pennefather | Pennefather | Pennefather |
| Liverpool Scotland | O'Connor | O'Connor | O'Connor | O'Connor | O'Connor | O'Connor | O'Connor | O'Connor | O'Connor | O'Connor | O'Connor | O'Connor | O'Connor | O'Connor | O'Connor | O'Connor | O'Connor | O'Connor | O'Connor | O'Connor | O'Connor | O'Connor | O'Connor | O'Connor | O'Connor | O'Connor |
| Liverpool Walton | Gibson | Gibson | Gibson | Gibson | Mattinson | Mattinson | Stock | Stock | Stock | Stock | Stock | Stock | Stock | Stock | Stock | Stock | Stock | Smith | Smith | Smith | Smith | Smith | Smith | Smith | Smith | Smith |
| Liverpool W Derby | Hamilton | Hamilton | Hamilton | Hamilton | Cross | Cross | Cross | Long | Long | Long | Long | Long | Long | Higginbottom | Higginbottom | W. Rutherford | W. Rutherford | W. Rutherford | W. Rutherford | W. Rutherford | W. Rutherford | W. Rutherford | W. Rutherford | W. Rutherford | W. Rutherford | W. Rutherford |
| Liverpool W Toxteth | Royden | Royden | Royden | Royden | Royden | Royden | Houston | Houston | Houston | Houston | Houston | Houston | Houston | Houston | Houston | Houston | Houston | Houston | Houston | Houston | Houston | Houston | Houston | Houston | Houston | Houston |
| Newton | Cross | Cross | Legh | Legh | Legh | Legh | Legh | Legh | Legh | Legh | Legh | Legh | R. Pilkington | R. Pilkington | R. Pilkington | R. Pilkington | R. Pilkington | Seddon | Seddon | Seddon | Seddon | Palmer | Palmer | Palmer | Palmer | Palmer |
| St Helens | Seton-Karr | Seton-Karr | Seton-Karr | Seton-Karr | Seton-Karr | Seton-Karr | Seton-Karr | Seton-Karr | Seton-Karr | Seton-Karr | Seton-Karr | Seton-Karr | Seton-Karr | Seton-Karr | Seton-Karr | Seton-Karr | Seton-Karr | Glover | Glover | Glover | Glover | Swift | Swift | Swift | Swift | Swift |
| Southport | G. Pilkington | Curzon | Curzon | Curzon | Curzon | Curzon | Curzon | Curzon | Curzon | Curzon | Curzon | Naylor-Leyland | G. Pilkington | Marshall-Hall | Marshall-Hall | Marshall-Hall | Marshall-Hall | Astbury | Astbury | Dalrymple-White | Dalrymple-White | Dalrymple-White | Dalrymple-White | Dalrymple-White | Dalrymple-White | Dalrymple-White |
| Warrington | Greenall | Greenall | Greenall | Greenall | Greenall | Greenall | Pierpont | Pierpont | Pierpont | Pierpont | Pierpont | Pierpont | Pierpont | Pierpont | Pierpont | Pierpont | Pierpont | Crosfield | Crosfield | Crosfield | Crosfield | Smith | Smith | Smith | Smith | Smith |
| Widnes | Edwards-Moss | Edwards-Moss | Edwards-Moss | Edwards-Moss | Edwards-Moss | Edwards-Moss | Gilliat | Gilliat | Gilliat | Gilliat | Gilliat | Gilliat | Gilliat | Walker | Walker | Walker | Walker | Walker | Walker | Walker | Walker | Walker | Walker | Walker | Walker | Walker |

### 1918 to 1950
#### Lancashire area

Coalition Liberal (1918–1922) / National Liberal (1922–1923)  Conservative  Constitutionalist  Independent  Labour  Liberal  National Labour  National Liberal (1931–1968)
| Constituency | 1918 | 20 | 21 | 1922 | 1923 | 24 | 1924 | 24 | 28 | 1929 | 29 | 31 | 1931 | 1935 | 36 | 38 | 39 | 40 | 41 | 42 | 43 | 1945 | 46 |
| Accrington | Gray | Gray | Gray | Buxton | Edwards | Edwards | → | → | → | Snowden | Snowden | Snowden | Procter | Procter | Procter | Procter | Procter | Procter | Procter | Procter | Procter | Scott-Elliot | Scott-Elliot |
| Barrow-in-Furness | Chadwick | Chadwick | Chadwick | Somerville | Somerville | Somerville | Bromley | Bromley | Bromley | Bromley | Bromley | Bromley | Walker-Smith | Walker-Smith | Walker-Smith | Walker-Smith | Walker-Smith | Walker-Smith | Walker-Smith | Walker-Smith | Walker-Smith | Monslow | Monslow |
| Blackburn | Norman | Norman | Norman | Norman | J. Duckworth | J. Duckworth | J. Duckworth | J. Duckworth | J. Duckworth | Gill | Gill | Gill | Elliston | Elliston | Elliston | Elliston | Elliston | Elliston | Elliston | Elliston | Elliston | Edwards | Edwards |
| Blackburn | Dean | Dean | Dean | Henn | Henn | Henn | Henn | Henn | Henn | Hamilton | Hamilton | Hamilton | Smiles | Smiles | Smiles | Smiles | Smiles | Smiles | Smiles | Smiles | Smiles | Castle | Castle |
| Blackpool North | | | | | | | | | | | | | | | | | | | | | | Low | Low |
| Blackpool / South (1945) | Parkinson | Parkinson | Parkinson | Molloy | Meyler | Meyler | de Frece | de Frece | de Frece | de Frece | de Frece | de Frece | Erskine-Bolst | Robinson | Robinson | Robinson | Robinson | Robinson | Robinson | Robinson | Robinson | Robinson | Robinson |
| Burnley | Irving | Irving | Irving | Irving | Irving | A. Henderson | A. Henderson | A. Henderson | A. Henderson | A. Henderson | A. Henderson | A. Henderson | Campbell | Burke | Burke | Burke | Burke | Burke | Burke | Burke | Burke | Burke | Burke |
| Chorley | Hacking | Hacking | Hacking | Hacking | Hacking | Hacking | Hacking | Hacking | Hacking | Hacking | Hacking | Hacking | Hacking | Hacking | Hacking | Hacking | Hacking | Hacking | Hacking | Hacking | Hacking | Kenyon | Kenyon |
| Clitheroe | Davies | Davies | Davies | Brass | Brass | Brass | Brass | Brass | Brass | Brass | Brass | Brass | Brass | Brass | Brass | Brass | Brass | Brass | Brass | Brass | Brass | Randall | Randall |
| Darwen | Rutherford | Rutherford | Rutherford | Sanderson | Hindle | Hindle | Sanderson | Sanderson | Sanderson | Samuel | Samuel | Samuel | Samuel | Russell | Russell | Russell | Russell | Russell | Russell | Russell | Prescott | Prescott | Prescott |
| Fylde | Ashley | Ashley | Ashley | Stanley | Stanley | Stanley | Stanley | Stanley | Stanley | Stanley | Stanley | Stanley | Stanley | Stanley | Stanley | Lancaster | Lancaster | Lancaster | Lancaster | Lancaster | Lancaster | Lancaster | Lancaster |
| Lancaster | Hunter | Hunter | Hunter | Singleton | O'Neill | O'Neill | Strickland | Strickland | Tomlinson | Ramsbotham | Ramsbotham | Ramsbotham | Ramsbotham | Ramsbotham | Ramsbotham | Ramsbotham | Ramsbotham | Ramsbotham | Maclean | Maclean | Maclean | Maclean | Maclean |
| Lonsdale | Lowther | → | → | Kennedy | Maden | Maden | Lindsay | Lindsay | Lindsay | Lindsay | Lindsay | Lindsay | Lindsay | Lindsay | Lindsay | Lindsay | Lindsay | Fraser | Fraser | Fraser | Fraser | Fraser | Fraser |
| Nelson and Colne | A. Smith | Graham | Graham | Greenwood | Greenwood | Greenwood | Greenwood | Greenwood | Greenwood | Greenwood | Greenwood | Greenwood | Thorp | Silverman | Silverman | Silverman | Silverman | Silverman | Silverman | Silverman | Silverman | Silverman | Silverman |
| Ormskirk | Bell | Bell | Bell | Blundell | Blundell | Blundell | Blundell | Blundell | Blundell | Rosbotham | Rosbotham | → | → | → | → | → | King-Hall | King-Hall | King-Hall | → | → | Wilson | Wilson |
| Preston | Stanley | Stanley | Stanley | Hodge | Hodge | Hodge | Kennedy | Kennedy | Kennedy | Jowitt | → | → | Moreing | Moreing | Moreing | Moreing | Moreing | Churchill | Churchill | Churchill | Churchill | Sunderland | Shackleton |
| Preston | Shaw | Shaw | Shaw | Shaw | Shaw | Shaw | Shaw | Shaw | Shaw | Shaw | Shaw | Shaw | Kirkpatrick | Kirkpatrick | Cobb | Cobb | Cobb | Cobb | Cobb | Cobb | Cobb | Segal | Segal |
| Rossendale | Waddington | Waddington | Waddington | Halstead | Waddington | Waddington | Waddington | Waddington | Waddington | Law | Law | Law | Cross | Cross | Cross | Cross | Cross | Cross | Cross | Cross | Cross | Walker | Walker |

#### Manchester area

Coalition Labour  Coalition Liberal (1918-22) / National Liberal (1922-23)  Conservative  Constitutionalist  Independent  Labour  Labour Independent Group  Liberal  National Government  National Liberal (1931-68)
| Constituency | 1918 | 19 | 20 | 21 | 22 | 1922 | 1923 | 1924 | 24 | 25 | 28 | 1929 | 31 | 1931 | 33 | 1935 | 37 | 38 | 39 | 40 | 42 | 44 | 1945 | 45 | 46 | 48 | 49 |
| Ashton-under-Lyne | Stanley | Stanley | de Frece | de Frece | de Frece | de Frece | de Frece | Homan | Homan | Homan | Bellamy | Bellamy | Broadbent | Broadbent | Broadbent | Simpson | Simpson | Simpson | Jowitt | Jowitt | Jowitt | Jowitt | Jowitt | Rhodes | Rhodes | Rhodes | Rhodes |
| Bolton | Tootill | Tootill | Tootill | Tootill | Tootill | Russell | Cunliffe | Cunliffe | Cunliffe | Cunliffe | Cunliffe | Brothers | Brothers | Haslam | Haslam | Haslam | Haslam | Haslam | Haslam | Cadogan | Cadogan | Cadogan | J. Jones | J. Jones | J. Jones | J. Jones | J. Jones |
| Bolton | Edge | Edge | Edge | Edge | Edge | Edge | Law | Hilton | Hilton | Hilton | Hilton | Law | Law | Entwistle | Entwistle | Entwistle | Entwistle | Entwistle | Entwistle | Entwistle | Entwistle | Entwistle | Lewis | Lewis | Lewis | Lewis | Lewis |
| Bury | Ainsworth | Ainsworth | Ainsworth | Ainsworth | Ainsworth | Ainsworth | Ainsworth | Ainsworth | Ainsworth | Ainsworth | Ainsworth | Ainsworth | Ainsworth | Ainsworth | Ainsworth | Chorlton | Chorlton | Chorlton | Chorlton | Chorlton | Chorlton | Chorlton | Fletcher | Fletcher | Fletcher | Fletcher | Fletcher |
| Eccles | Stevens | Stevens | Stevens | Stevens | Stevens | Buckle | Buckle | Bethel | Bethel | Bethel | Bethel | Mort | Mort | Potter | Potter | Cary | Cary | Cary | Cary | Cary | Cary | Cary | Proctor | Proctor | Proctor | Proctor | Proctor |
| Farnworth | Bagley | Bagley | Bagley | Bagley | Bagley | Greenall | Greenall | Greenall | Greenall | Greenall | Greenall | Rowson | Rowson | Stones | Stones | Rowson | Rowson | Tomlinson | Tomlinson | Tomlinson | Tomlinson | Tomlinson | Tomlinson | Tomlinson | Tomlinson | Tomlinson | Tomlinson |
| Heywood and Radcliffe | Illingworth | Illingworth | Illingworth | Halls | Halls | England | → | → | → | → | → | → | → | Jackson | Jackson | Porritt | Porritt | Porritt | Porritt | Wootton-Davies | Wootton-Davies | Wootton-Davies | Whittaker | Whittaker | Greenwood | Greenwood | Greenwood |
| Ince | Walsh | Walsh | Walsh | Walsh | Walsh | Walsh | Walsh | Walsh | Walsh | Walsh | Walsh | Macdonald | Macdonald | Macdonald | Macdonald | Macdonald | Macdonald | Macdonald | Macdonald | Macdonald | Brown | Brown | Brown | Brown | Brown | Brown | Brown |
| Leigh | Raffan | Raffan | Raffan | Raffan | Raffan | Twist | Tinker | Tinker | Tinker | Tinker | Tinker | Tinker | Tinker | Tinker | Tinker | Tinker | Tinker | Tinker | Tinker | Tinker | Tinker | Tinker | Boardman | Boardman | Boardman | Boardman | Boardman |
| Manchester Ardwick | Hailwood | Hailwood | Hailwood | Hailwood | Hailwood | Lowth | Lowth | Lowth | Lowth | Lowth | Lowth | Lowth | J. Henderson | Fuller | Fuller | J. Henderson | J. Henderson | J. Henderson | J. Henderson | J. Henderson | J. Henderson | J. Henderson | J. Henderson | J. Henderson | J. Henderson | J. Henderson | J. Henderson |
| Manchester Blackley | Briggs | Briggs | Briggs | Briggs | Briggs | Briggs | Oliver | Briggs | Briggs | Briggs | Briggs | Oliver | Oliver | Lees-Jones | Lees-Jones | Lees-Jones | Lees-Jones | Lees-Jones | Lees-Jones | Lees-Jones | Lees-Jones | Lees-Jones | Diamond | Diamond | Diamond | Diamond | Diamond |
| Manchester Clayton | Hopkinson | Hopkinson | Hopkinson | Hopkinson | Sutton | Flanagan | Sutton | Sutton | Sutton | Sutton | Sutton | Sutton | Sutton | Flanagan | Flanagan | Jagger | Jagger | Jagger | Jagger | Jagger | Thorneycroft | Thorneycroft | Thorneycroft | Thorneycroft | Thorneycroft | Thorneycroft | Thorneycroft |
| Manchester Exchange | Randles | Randles | Randles | Randles | Randles | Stockton | Barclay | Fielden | Fielden | Fielden | Fielden | Fielden | Fielden | Fielden | Fielden | Eckersley | Eckersley | Eckersley | Eckersley | Hewlett | Hewlett | Hewlett | Lever | Lever | Lever | Lever | Lever |
| Manchester Gorton | Hodge | Hodge | Hodge | Hodge | Hodge | → | Compton | Compton | Compton | Compton | Compton | Compton | Compton | Bailey | Bailey | Compton | Benn | Benn | Benn | Benn | Oldfield | Oldfield | Oldfield | Oldfield | Oldfield | Oldfield | Oldfield |
| Manchester Hulme | Nall | Nall | Nall | Nall | Nall | Nall | Nall | Nall | Nall | Nall | Nall | McElwee | McElwee | Nall | Nall | Nall | Nall | Nall | Nall | Nall | Nall | Nall | Lee | Lee | Lee | Lee | Lee |
| Manchester Moss Side | Hurst | Hurst | Hurst | Hurst | Hurst | Hurst | Ackroyd | Hurst | Hurst | Hurst | Hurst | Hurst | Hurst | Hurst | Hurst | W. Duckworth | W. Duckworth | W. Duckworth | W. Duckworth | W. Duckworth | W. Duckworth | W. Duckworth | Griffiths | Griffiths | Griffiths | Griffiths | Griffiths |
| Manchester Platting | Clynes | Clynes | Clynes | Clynes | Clynes | Clynes | Clynes | Clynes | Clynes | Clynes | Clynes | Clynes | Clynes | Chorlton | Chorlton | Clynes | Clynes | Clynes | Clynes | Clynes | Clynes | Clynes | Delargy | Delargy | Delargy | Delargy | Delargy |
| Manchester Rusholme | Stoker | Thorpe | Thorpe | Thorpe | Thorpe | Thorpe | Masterman | Merriman | Merriman | Merriman | Merriman | Merriman | Merriman | Merriman | Radford | Radford | Radford | Radford | Radford | Radford | Radford | Cundiff | Hutchinson | Hutchinson | Hutchinson | Hutchinson | → |
| Manchester Withington | Carter | Carter | Carter | Carter | Carter | Watts | Simon | Watts | Watts | Watts | Watts | Simon | Simon | Fleming | Fleming | Fleming | Fleming | Fleming | Fleming | Fleming | Fleming | Fleming | Fleming | Fleming | Fleming | Fleming | Fleming |
| Middleton & Prestwich | Adkins | Adkins | Adkins | Adkins | Adkins | Adkins | Stewart-Sandeman | Stewart-Sandeman | Stewart-Sandeman | Stewart-Sandeman | Stewart-Sandeman | Stewart-Sandeman | Stewart-Sandeman | Stewart-Sandeman | Stewart-Sandeman | Stewart-Sandeman | Stewart-Sandeman | Stewart-Sandeman | Stewart-Sandeman | Gates | Gates | Gates | Gates | Gates | Gates | Gates | Gates |
| Mossley | Hopkinson | Hopkinson | Hopkinson | Hopkinson | Hopkinson | → | → | → | → | → | → | Gibson | Gibson | Hopkinson | Hopkinson | → | → | → | → | → | → | → | Woods | Woods | Woods | Woods | Woods |
| Oldham | Barton | Barton | Barton | Barton | Barton | Grigg | → | → | → | Wiggins | Wiggins | Lang | Lang | Crossley | Crossley | Dodd | Dodd | Dodd | Dodd | Dodd | Dodd | Dodd | Fairhurst | Fairhurst | Fairhurst | Fairhurst | Fairhurst |
| Oldham | Denniss | Denniss | Denniss | Denniss | Denniss | Tout | Tout | Cooper | Cooper | Cooper | Cooper | Wilson | Wilson | Kerr | Kerr | Kerr | Kerr | Kerr | Kerr | Kerr | Kerr | Kerr | Hale | Hale | Hale | Hale | Hale |
| Rochdale | Law | Law | Law | Law | Law | Burgess | Muir | Kelly | Kelly | Kelly | Kelly | Kelly | Kelly | Jesson | Jesson | Kelly | Kelly | Kelly | Kelly | Morgan | Morgan | Morgan | Morgan | Morgan | Morgan | Morgan | Morgan |
| Royton | Sugden | Sugden | Sugden | Sugden | Sugden | Sugden | Gorman | Davies | Davies | Davies | Davies | Davies | Davies | Sutcliffe | Sutcliffe | Sutcliffe | Sutcliffe | Sutcliffe | Sutcliffe | Sutcliffe | Sutcliffe | Sutcliffe | Sutcliffe | Sutcliffe | Sutcliffe | Sutcliffe | Sutcliffe |
| Salford North | Tillett | Tillett | Tillett | Tillett | Tillett | Tillett | Tillett | Finburgh | Finburgh | Finburgh | Finburgh | Tillett | Tillett | Morris | Morris | Morris | Morris | Morris | Morris | Morris | Morris | Morris | McAdam | McAdam | McAdam | McAdam | McAdam |
| Salford South | Barlow | Barlow | Barlow | Barlow | Barlow | Barlow | Toole | Radford | Radford | Radford | Radford | Toole | Toole | Stourton | Stourton | Stourton | Stourton | Stourton | Stourton | Stourton | Stourton | Stourton | Hardy | Hardy | Hardy | Hardy | Hardy |
| Salford West | Astbury | Astbury | Astbury | Astbury | Astbury | Astbury | Haycock | Astbury | Astbury | Astbury | Astbury | Haycock | Haycock | Astbury | Astbury | Emery | Emery | Emery | Emery | Emery | Emery | Emery | Royle | Royle | Royle | Royle | Royle |
| Stretford | T. Robinson | T. Robinson | T. Robinson | T. Robinson | T. Robinson | T. Robinson | → | → | → | → | → | → | → | Renwick | Renwick | Crossley | Crossley | Crossley | Etherton | Etherton | Etherton | Etherton | Austin | Austin | Austin | Austin | Austin |
| Westhoughton | Wilson | Wilson | Wilson | Davies | Davies | Davies | Davies | Davies | Davies | Davies | Davies | Davies | Davies | Davies | Davies | Davies | Davies | Davies | Davies | Davies | Davies | Davies | Davies | Davies | Davies | Davies | Davies |
| Wigan | Parkinson | Parkinson | Parkinson | Parkinson | Parkinson | Parkinson | Parkinson | Parkinson | Parkinson | Parkinson | Parkinson | Parkinson | Parkinson | Parkinson | Parkinson | Parkinson | Parkinson | Parkinson | Parkinson | Parkinson | Foster | Foster | Foster | Foster | Foster | Williams | Williams |

#### Merseyside area

Conservative  Irish Nationalist  Labour  Liberal  National Labour
| Constituency | 1918 | 19 | 1922 | 23 | 1923 | 24 | 1924 | 29 | 1929 | 29 | 31 | 1931 | 33 | 35 | 1935 | 1945 | 47 |
| Bootle | Royden | Royden | Burnie | Burnie | Burnie | Burnie | V. Henderson | V. Henderson | Kinley | Kinley | Kinley | Crookshank | Crookshank | Crookshank | Errington | Kinley | Kinley |
| Liverpool E Toxteth | Rankin | Rankin | Rankin | Rankin | Rankin | Rankin | Jacob | Mond | Mond | Mond | Buchan-Hepburn | Buchan-Hepburn | Buchan-Hepburn | Buchan-Hepburn | Buchan-Hepburn | Buchan-Hepburn | Buchan-Hepburn |
| Liverpool Edge Hill | W. Rutherford | W. Rutherford | W. Rutherford | Hayes | Hayes | Hayes | Hayes | Hayes | Hayes | Hayes | Hayes | H. Rutherford | H. Rutherford | H. Rutherford | Critchley | Clitherow | Irvine |
| Liverpool Everton | Harmood-Banner | Harmood-Banner | Harmood-Banner | Harmood-Banner | Harmood-Banner | Harmood-Banner | Woodcock | Woodcock | Caine | Caine | → | Hornby | Hornby | Hornby | Kirby | Kirby | Kirby |
| Liverpool Exchange | Scott | Scott | Scott | Scott | Scott | Scott | Scott | Scott | Reynolds | Reynolds | Reynolds | Reynolds | Shute | Shute | Shute | Braddock | Braddock |
| Liverpool Fairfield | Cohen | Cohen | Cohen | Cohen | Cohen | Cohen | Cohen | Cohen | Cohen | Cohen | Cohen | Brocklebank | Brocklebank | Brocklebank | Brocklebank | Moody | Moody |
| Liverpool Kirkdale | Pennefather | Pennefather | Pennefather | Pennefather | Pennefather | Pennefather | Pennefather | Pennefather | Sandham | Sandham | Sandham | Rankin | Rankin | Rankin | Rankin | Keenan | Keenan |
| Liverpool Scotland | O'Connor | O'Connor | O'Connor | O'Connor | O'Connor | O'Connor | O'Connor | O'Connor | O'Connor | Logan | Logan | Logan | Logan | Logan | Logan | Logan | Logan |
| Liverpool Walton | Chilcott | Chilcott | Chilcott | Chilcott | Chilcott | Chilcott | Chilcott | Chilcott | Purbrick | Purbrick | Purbrick | Purbrick | Purbrick | Purbrick | Purbrick | Haworth | Haworth |
| Liverpool Wavertree | Raw | Raw | H. Smith | H. Smith | Rathbone | Rathbone | Tinne | Tinne | Tinne | Tinne | Nall-Cain | Nall-Cain | Nall-Cain | Cleary | Shaw | Raikes | Raikes |
| Liverpool West Derby | F. Smith | Hall | Hall | Hall | C. Jones | C. Jones | Allen | Allen | Allen | Allen | Allen | Allen | Allen | Fyfe | Fyfe | Fyfe | Fyfe |
| Liverpool West Toxteth | Houston | Houston | Houston | Houston | Houston | Gibbins | Gibbins | Gibbins | Gibbins | Gibbins | Gibbins | Wilson | Wilson | Gibbins | Gibbins | Gibbins | Gibbins |
| Newton | Young | Young | Young | Young | Young | Young | Young | Young | Young | Young | Young | Essenhigh | Essenhigh | Essenhigh | Young | Young | Young |
| St Helens | Sexton | Sexton | Sexton | Sexton | Sexton | Sexton | Sexton | Sexton | Sexton | Sexton | Sexton | Spencer | Spencer | Spencer | W. Robinson | Shawcross | Shawcross |
| Southport | Dalrymple-White | Dalrymple-White | Dalrymple-White | Dalrymple-White | Brunner | Brunner | Dalrymple-White | Dalrymple-White | Dalrymple-White | Dalrymple-White | Dalrymple-White | Hudson | Hudson | Hudson | Hudson | Hudson | Hudson |
| Warrington | H. Smith | H. Smith | Cunningham-Reid | Cunningham-Reid | Dukes | Dukes | Cunningham-Reid | Cunningham-Reid | Dukes | Dukes | Dukes | Goldie | Goldie | Goldie | Goldie | Porter | Porter |
| Waterloo | Buckley | Buckley | Buckley | Buckley | Bullock | Bullock | Bullock | Bullock | Bullock | Bullock | Bullock | Bullock | Bullock | Bullock | Bullock | Bullock | Bullock |
| Widnes | Walker | A. Henderson | Clayton | Clayton | Clayton | Clayton | Clayton | Clayton | Cameron | Cameron | Cameron | R. Robinson | R. Robinson | R. Robinson | Pilkington | Shawcross | Shawcross |

### 1950 to 1983
#### Lancashire area

Conservative  Labour
| Constituency | 1950 | 51 | 1951 | 53 | 1955 | 58 | 1959 | 62 | 1964 | 1966 | 68 | 1970 | Feb 1974 | Oct 1974 | 79 | 1979 |
| Blackburn West | Assheton | Assheton | Assheton | Assheton | | | | | | | | | | | | |
| Accrington | Hynd | Hynd | Hynd | Hynd | Hynd | Hynd | Hynd | Hynd | Hynd | Davidson | Davidson | Davidson | Davidson | Davidson | Davidson | Davidson |
| Barrow-in-Furness | Monslow | Monslow | Monslow | Monslow | Monslow | Monslow | Monslow | Monslow | Monslow | Booth | Booth | Booth | Booth | Booth | Booth | Booth |
| Blackburn East / Blackburn (1955) | Castle | Castle | Castle | Castle | Castle | Castle | Castle | Castle | Castle | Castle | Castle | Castle | Castle | Castle | Castle | Straw |
| Blackpool North | Low | Low | Low | Low | Low | Low | Low | Miscampbell | Miscampbell | Miscampbell | Miscampbell | Miscampbell | Miscampbell | Miscampbell | Miscampbell | Miscampbell |
| Blackpool South | Robinson | Robinson | Robinson | Robinson | Robinson | Robinson | Robinson | Robinson | Blaker | Blaker | Blaker | Blaker | Blaker | Blaker | Blaker | Blaker |
| Burnley | Burke | Burke | Burke | Burke | Burke | Burke | Jones | Jones | Jones | Jones | Jones | Jones | Jones | Jones | Jones | Jones |
| Chorley | Kenyon | Kenyon | Kenyon | Kenyon | Kenyon | Kenyon | Kenyon | Kenyon | Kenyon | Kenyon | Kenyon | Monks | Rodgers | Rodgers | Rodgers | Dover |
| Clitheroe | Fort | Fort | Fort | Fort | Fort | Fort | Pearson | Pearson | Pearson | Pearson | Pearson | Walder | Walder | Walder | Waddington | Waddington |
| Darwen | Prescott | Prescott | Fletcher-Cooke | Fletcher-Cooke | Fletcher-Cooke | Fletcher-Cooke | Fletcher-Cooke | Fletcher-Cooke | Fletcher-Cooke | Fletcher-Cooke | Fletcher-Cooke | Fletcher-Cooke | Fletcher-Cooke | Fletcher-Cooke | Fletcher-Cooke | Fletcher-Cooke |
| Fylde North | Stanley | Stanley | Stanley | Stanley | Stanley | Stanley | Stanley | Stanley | Stanley | Clegg | Clegg | Clegg | Clegg | Clegg | Clegg | Clegg |
| Fylde South | Lancaster | Lancaster | Lancaster | Lancaster | Lancaster | Lancaster | Lancaster | Lancaster | Lancaster | Lancaster | Lancaster | Gardner | Gardner | Gardner | Gardner | Gardner |
| Lancaster | Maclean | Maclean | Maclean | Maclean | Maclean | Maclean | Berkeley | Berkeley | Berkeley | Henig | Henig | Kellett-Bowman | Kellett-Bowman | Kellett-Bowman | Kellett-Bowman | Kellett-Bowman |
| Morecambe and Lonsdale | Fraser | Fraser | Fraser | Fraser | Fraser | de Ferranti | de Ferranti | de Ferranti | Hall-Davis | Hall-Davis | Hall-Davis | Hall-Davis | Hall-Davis | Hall-Davis | Hall-Davis | Lennox-Boyd |
| Nelson and Colne | Silverman | Silverman | Silverman | Silverman | Silverman | Silverman | Silverman | Silverman | Silverman | Silverman | Waddington | Waddington | Waddington | Hoyle | Hoyle | Lee |
| Ormskirk | Cross | Salter | Salter | Glover | Glover | Glover | Glover | Glover | Glover | Glover | Glover | Soref | Kilroy-Silk | Kilroy-Silk | Kilroy-Silk | Kilroy-Silk |
| Preston South | Shackleton | Shackleton | Shackleton | Shackleton | Green | Green | Green | Green | Mahon | Mahon | Mahon | Green | Thorne | Thorne | Thorne | Thorne |
| Preston North | Amery | Amery | Amery | Amery | Amery | Amery | Amery | Amery | Amery | R. H. Atkins | R. H. Atkins | Holt | R. H. Atkins | R. H. Atkins | R. H. Atkins | R. J. Atkins |
| Rossendale | Greenwood | Greenwood | Greenwood | Greenwood | Greenwood | Greenwood | Greenwood | Greenwood | Greenwood | Greenwood | Greenwood | Bray | Bray | Noble | Noble | Trippier |

#### Manchester area

Conservative  Labour  Liberal  Social Democratic
| Constituency | 1950 | 51 | 1951 | 52 | 1955 | 58 | 1959 | 60 | 61 | 63 | 1964 | 1966 | 67 | 68 | 1970 | 72 | 73 | Feb 1974 | Oct 1974 | 78 | 1979 | 79 | 81 |
| Manchester Clayton | Thorneycroft | Thorneycroft | Thorneycroft | Thorneycroft | | | | | | | | | | | | | | | | | | | |
| Manchester Exchange | Griffiths | Griffiths | Griffiths | Griffiths | Griffiths | Griffiths | Griffiths | Griffiths | Griffiths | Griffiths | Griffiths | Griffiths | Griffiths | Griffiths | Griffiths | Griffiths | Hatton | | | | | | |
| Ashton-under-Lyne | Rhodes | Rhodes | Rhodes | Rhodes | Rhodes | Rhodes | Rhodes | Rhodes | Rhodes | Rhodes | Sheldon | Sheldon | Sheldon | Sheldon | Sheldon | Sheldon | Sheldon | Sheldon | Sheldon | Sheldon | Sheldon | Sheldon | Sheldon |
| Bolton East | Booth | Booth | Bell | Bell | Bell | Bell | Bell | E. Taylor | E. Taylor | E. Taylor | Howarth | Howarth | Howarth | Howarth | Reed | Reed | Reed | Young | Young | Young | Young | Young | Young |
| Bolton West | Lewis | Lewis | Holt | Holt | Holt | Holt | Holt | Holt | Holt | Holt | Oakes | Oakes | Oakes | Oakes | Redmond | Redmond | Redmond | Redmond | Taylor | Taylor | Taylor | Taylor | Taylor |
| Bury and Radcliffe | Fletcher | Fletcher | Fletcher | Fletcher | Bidgood | Bidgood | Bidgood | Bidgood | Bidgood | Bidgood | Ensor | Ensor | Ensor | Ensor | Fidler | Fidler | Fidler | Fidler | White | White | White | White | White |
| Droylsden / Manchester Openshaw (1955) | Woods | Woods | W. Williams | W. Williams | W. Williams | W. Williams | W. Williams | W. Williams | W. Williams | Morris | Morris | Morris | Morris | Morris | Morris | Morris | Morris | Morris | Morris | Morris | Morris | Morris | Morris |
| Eccles | Proctor | Proctor | Proctor | Proctor | Proctor | Proctor | Proctor | Proctor | Proctor | Proctor | Carter-Jones | Carter-Jones | Carter-Jones | Carter-Jones | Carter-Jones | Carter-Jones | Carter-Jones | Carter-Jones | Carter-Jones | Carter-Jones | Carter-Jones | Carter-Jones | Carter-Jones |
| Farnworth | Tomlinson | Tomlinson | Tomlinson | Thornton | Thornton | Thornton | Thornton | Thornton | Thornton | Thornton | Thornton | Thornton | Thornton | Thornton | Roper | Roper | Roper | Roper | Roper | Roper | Roper | Roper | → |
| Heywood and Royton | Sutcliffe | Sutcliffe | Sutcliffe | Sutcliffe | Leavey | Leavey | Leavey | Leavey | Leavey | Leavey | Barnett | Barnett | Barnett | Barnett | Barnett | Barnett | Barnett | Barnett | Barnett | Barnett | Barnett | Barnett | Barnett |
| Ince | Brown | Brown | Brown | Brown | Brown | Brown | Brown | Brown | Brown | Brown | McGuire | McGuire | McGuire | McGuire | McGuire | McGuire | McGuire | McGuire | McGuire | McGuire | McGuire | McGuire | McGuire |
| Leigh | Boardman | Boardman | Boardman | Boardman | Boardman | Boardman | Boardman | Boardman | Boardman | Boardman | Boardman | Boardman | Boardman | Boardman | Boardman | Boardman | Boardman | Boardman | Boardman | Boardman | Cunliffe | Cunliffe | Cunliffe |
| Manchester Ardwick | L. Lever | L. Lever | L. Lever | L. Lever | L. Lever | L. Lever | L. Lever | L. Lever | L. Lever | L. Lever | L. Lever | L. Lever | L. Lever | L. Lever | Kaufman | Kaufman | Kaufman | Kaufman | Kaufman | Kaufman | Kaufman | Kaufman | Kaufman |
| Manchester Blackley | Diamond | Diamond | Johnson | Johnson | Johnson | Johnson | Johnson | Johnson | Johnson | Johnson | Rose | Rose | Rose | Rose | Rose | Rose | Rose | Rose | Rose | Rose | Eastham | Eastham | Eastham |
| Manchester Cheetham / Manc Central (74) | H. Lever | H. Lever | H. Lever | H. Lever | H. Lever | H. Lever | H. Lever | H. Lever | H. Lever | H. Lever | H. Lever | H. Lever | H. Lever | H. Lever | H. Lever | H. Lever | H. Lever | H. Lever | H. Lever | H. Lever | H. Lever | Litherland | Litherland |
| Manchester Gorton | Oldfield | Oldfield | Oldfield | Oldfield | Zilliacus | Zilliacus | Zilliacus | Zilliacus | Zilliacus | Zilliacus | Zilliacus | Zilliacus | Marks | Marks | Marks | Marks | Marks | Marks | Marks | Marks | Marks | Marks | Marks |
| Manchester Moss Side | Horsbrugh | Horsbrugh | Horsbrugh | Horsbrugh | Horsbrugh | Horsbrugh | Watts | Watts | F. Taylor | F. Taylor | F. Taylor | F. Taylor | F. Taylor | F. Taylor | F. Taylor | F. Taylor | F. Taylor | Hatton | Hatton | Morton | Morton | Morton | Morton |
| Manchester Withington | Cundiff | Cundiff | Cary | Cary | Cary | Cary | Cary | Cary | Cary | Cary | Cary | Cary | Cary | Cary | Cary | Cary | Cary | Silvester | Silvester | Silvester | Silvester | Silvester | Silvester |
| Manchester Wythenshawe | Hill | Hill | Hill | Hill | Hill | Hill | Hill | Hill | Hill | Hill | Morris | Morris | Morris | Morris | Morris | Morris | Morris | Morris | Morris | Morris | Morris | Morris | Morris |
| Middleton and Prestwich | Gates | Gates | Barlow | Barlow | Barlow | Barlow | Barlow | Barlow | Barlow | Barlow | Barlow | Coe | Coe | Coe | Haselhurst | Haselhurst | Haselhurst | Callaghan | Callaghan | Callaghan | Callaghan | Callaghan | Callaghan |
| Oldham East | Fairhurst | Fairhurst | Horobin | Horobin | Horobin | Horobin | Mapp | Mapp | Mapp | Mapp | Mapp | Mapp | Mapp | Mapp | Lamond | Lamond | Lamond | Lamond | Lamond | Lamond | Lamond | Lamond | Lamond |
| Oldham West | L. Hale | L. Hale | L. Hale | L. Hale | L. Hale | L. Hale | L. Hale | L. Hale | L. Hale | L. Hale | L. Hale | L. Hale | L. Hale | Campbell | Meacher | Meacher | Meacher | Meacher | Meacher | Meacher | Meacher | Meacher | Meacher |
| Rochdale | J. Hale | J. Hale | Schofield | Schofield | Schofield | McCann | McCann | McCann | McCann | McCann | McCann | McCann | McCann | McCann | McCann | C. Smith | C. Smith | C. Smith | C. Smith | C. Smith | C. Smith | C. Smith | C. Smith |
| Salford East | Hardy | Hardy | Hardy | Hardy | Allaun | Allaun | Allaun | Allaun | Allaun | Allaun | Allaun | Allaun | Allaun | Allaun | Allaun | Allaun | Allaun | Allaun | Allaun | Allaun | Allaun | Allaun | Allaun |
| Stretford | Storey | Storey | Storey | Storey | Storey | Storey | Storey | Storey | Storey | Storey | Storey | Davies | Davies | Davies | Churchill | Churchill | Churchill | Churchill | Churchill | Churchill | Churchill | Churchill | Churchill |
| Salford West | Royle | Royle | Royle | Royle | Royle | Royle | Royle | Royle | Royle | Royle | Orme | Orme | Orme | Orme | Orme | Orme | Orme | Orme | Orme | Orme | Orme | Orme | Orme |
| Westhoughton | Davies | Price | Price | Price | Price | Price | Price | Price | Price | Price | Price | Price | Price | Price | Price | Price | Stott | Stott | Stott | Stott | Stott | Stott | Stott |
| Wigan | R. Williams | R. Williams | R. Williams | R. Williams | R. Williams | Fitch | Fitch | Fitch | Fitch | Fitch | Fitch | Fitch | Fitch | Fitch | Fitch | Fitch | Fitch | Fitch | Fitch | Fitch | Fitch | Fitch | Fitch |
| Constituency | 1950 | 51 | 1951 | 52 | 1955 | 58 | 1959 | 60 | 61 | 63 | 1964 | 1966 | 67 | 68 | 1970 | 72 | 73 | Feb 1974 | Oct 1974 | 78 | 1979 | 79 | 81 |

#### Merseyside area

Conservative  Labour  Liberal  Social Democratic
| Constituency | 1950 | 1951 | 52 | 53 | 54 | 1955 | 57 | 58 | 1959 | 61 | 64 | 1964 | 1966 | 1970 | 71 | Feb 1974 | Oct 1974 | 79 | 1979 | 81 |
| Liverpool Exchange | Braddock | Braddock | Braddock | Braddock | Braddock | Braddock | Braddock | Braddock | Braddock | Braddock | Braddock | Braddock | Braddock | Parry | Parry | | | | | |
| Bootle | Kinley | Kinley | Kinley | Kinley | Kinley | Mahon | Mahon | Mahon | Mahon | Mahon | Mahon | Mahon | Mahon | Mahon | Mahon | Mahon | Mahon | Mahon | Roberts | Roberts |
| Crosby | Bullock | Bullock | Bullock | Page | Page | Page | Page | Page | Page | Page | Page | Page | Page | Page | Page | Page | Page | Page | Page | S. Williams |
| Huyton | Wilson | Wilson | Wilson | Wilson | Wilson | Wilson | Wilson | Wilson | Wilson | Wilson | Wilson | Wilson | Wilson | Wilson | Wilson | Wilson | Wilson | Wilson | Wilson | Wilson |
| Liverpool Edge Hill | Irvine | Irvine | Irvine | Irvine | Irvine | Irvine | Irvine | Irvine | Irvine | Irvine | Irvine | Irvine | Irvine | Irvine | Irvine | Irvine | Irvine | Alton | Alton | Alton |
| Liverpool Garston | Raikes | Raikes | Raikes | Raikes | Raikes | Raikes | Bingham | Bingham | Bingham | Bingham | Bingham | Bingham | Fortescue | Fortescue | Fortescue | Loyden | Loyden | Loyden | Thornton | Thornton |
| Liverpool Kirkdale | Keenan | Keenan | Keenan | Keenan | Keenan | Pannell | Pannell | Pannell | Pannell | Pannell | Pannell | Dunn | Dunn | Dunn | Dunn | Dunn | Dunn | Dunn | Dunn | → |
| Liv Scotland / L Sc Exchange (74) | Logan | Logan | Logan | Logan | Logan | Logan | Logan | Logan | Logan | Logan | Alldritt | Alldritt | Alldritt | Alldritt | Marsden | Parry | Parry | Parry | Parry | Parry |
| Liverpool Toxteth | Bevins | Bevins | Bevins | Bevins | Bevins | Bevins | Bevins | Bevins | Bevins | Bevins | Bevins | Crawshaw | Crawshaw | Crawshaw | Crawshaw | Crawshaw | Crawshaw | Crawshaw | Crawshaw | → |
| Liverpool Walton | Thompson | Thompson | Thompson | Thompson | Thompson | Thompson | Thompson | Thompson | Thompson | Thompson | Thompson | Heffer | Heffer | Heffer | Heffer | Heffer | Heffer | Heffer | Heffer | Heffer |
| Liverpool Wavertree | Tilney | Tilney | Tilney | Tilney | Tilney | Tilney | Tilney | Tilney | Tilney | Tilney | Tilney | Tilney | Tilney | Tilney | Tilney | Steen | Steen | Steen | Steen | Steen |
| Liverpool West Derby | Fyfe | Fyfe | Fyfe | Fyfe | Woollam | Woollam | Woollam | Woollam | Woollam | Woollam | Woollam | Ogden | Ogden | Ogden | Ogden | Ogden | Ogden | Ogden | Ogden | → |
| Newton | Lee | Lee | Lee | Lee | Lee | Lee | Lee | Lee | Lee | Lee | Lee | Lee | Lee | Lee | Lee | Evans | Evans | Evans | Evans | Evans |
| Southport | Hudson | Hudson | Fleetwood-Hesketh | Fleetwood-Hesketh | Fleetwood-Hesketh | Fleetwood-Hesketh | Fleetwood-Hesketh | Fleetwood-Hesketh | Percival | Percival | Percival | Percival | Percival | Percival | Percival | Percival | Percival | Percival | Percival | Percival |
| St Helens | Shawcross | Shawcross | Shawcross | Shawcross | Shawcross | Shawcross | Shawcross | Spriggs | Spriggs | Spriggs | Spriggs | Spriggs | Spriggs | Spriggs | Spriggs | Spriggs | Spriggs | Spriggs | Spriggs | Spriggs |
| Warrington | Morgan | Morgan | Morgan | Morgan | Morgan | Summerskill | Summerskill | Summerskill | Summerskill | T. Williams | T. Williams | T. Williams | T. Williams | T. Williams | T. Williams | T. Williams | T. Williams | T. Williams | T. Williams | Hoyle |
| Widnes | MacColl | MacColl | MacColl | MacColl | MacColl | MacColl | MacColl | MacColl | MacColl | MacColl | MacColl | MacColl | MacColl | MacColl | Oakes | Oakes | Oakes | Oakes | Oakes | Oakes |

### 1983 to 2010

Conservative  Labour  Liberal Democrats
| Constituency | 1983 | 1987 | 91 | 1992 | 1997 | 00 | 2001 | 2005 |
| Blackburn | Straw | Straw | Straw | Straw | Straw | Straw | Straw | Straw |
| Blackpool North / Blackpool N & Fleetwood (1997) | Miscampbell | Miscampbell | Miscampbell | Elletson | Humble | Humble | Humble | Humble |
| Blackpool South | Blaker | Blaker | Blaker | Hawkins | Marsden | Marsden | Marsden | Marsden |
| Burnley | Pike | Pike | Pike | Pike | Pike | Pike | Pike | Ussher |
| Chorley | Dover | Dover | Dover | Dover | Hoyle | Hoyle | Hoyle | Hoyle |
| Fylde | Gardner | Jack | Jack | Jack | Jack | Jack | Jack | Jack |
| Hyndburn | Hargreaves | Hargreaves | Hargreaves | Pope | Pope | Pope | Pope | Pope |
| Lancaster / Lancaster & Wyre (1997) | Kellett-Bowman | Kellett-Bowman | Kellett-Bowman | Kellett-Bowman | Dawson | Dawson | Dawson | Wallace |
| Morecambe and Lunesdale | Lennox-Boyd | Lennox-Boyd | Lennox-Boyd | Lennox-Boyd | Smith | Smith | Smith | Smith |
| Pendle | Lee | Lee | Lee | Prentice | Prentice | Prentice | Prentice | Prentice |
| Preston | Thorne | Wise | Wise | Wise | Wise | Hendrick | Hendrick | Hendrick |
| Ribble Valley | Waddington | Waddington | Carr | Evans | Evans | Evans | Evans | Evans |
| Rossendale and Darwen | Trippier | Trippier | Trippier | Anderson | Anderson | Anderson | Anderson | Anderson |
| South Ribble | Atkins | Atkins | Atkins | Atkins | Borrow | Borrow | Borrow | Borrow |
| West Lancashire | Hind | Hind | Hind | Pickthall | Pickthall | Pickthall | Pickthall | Pickthall |
| Wyre | Clegg | Mans | Mans | Mans | | | | |

### 2010 to present

Conservative  Independent  Labour  Liberal Democrats  Speaker
| Constituency | 2010 | 13 | 14 | 15 | 2015 | 2017 | 2019 | 23 | 24 | 2024 |
| Blackburn | Straw | Straw | Straw | → | Hollern | Hollern | Hollern | Hollern | Hollern | Hussain |
| Blackpool N & Cleveleys / Blackpool N & Fleetwood ('24) | Maynard | Maynard | Maynard | Maynard | Maynard | Maynard | Maynard | Maynard | Maynard | Beavers |
| Blackpool South | Marsden | Marsden | Marsden | Marsden | Marsden | Marsden | Benton | → | Webb | Webb |
| Burnley | Birtwistle | Birtwistle | Birtwistle | Birtwistle | J. Cooper | J. Cooper | Higginbotham | Higginbotham | Higginbotham | Ryan |
| Chorley | Hoyle | Hoyle | Hoyle | Hoyle | Hoyle | Hoyle | → | → | → | → |
| Fylde | Menzies | Menzies | Menzies | Menzies | Menzies | Menzies | Menzies | Menzies | → | Snowden |
| Hyndburn | Jones | Jones | Jones | Jones | Jones | Jones | Britcliffe | Britcliffe | Britcliffe | Smith |
| Lancaster & Fleetwood / Lancaster & Wyre (2024) | Ollerenshaw | Ollerenshaw | Ollerenshaw | Ollerenshaw | Smith | Smith | Smith | Smith | Smith | Smith |
| Morecambe and Lunesdale | Morris | Morris | Morris | Morris | Morris | Morris | Morris | Morris | Morris | Collinge |
| Pendle / Pendle and Clitheroe (2024) | Stephenson | Stephenson | Stephenson | Stephenson | Stephenson | Stephenson | Stephenson | Stephenson | Stephenson | Hinder |
| Preston | Hendrick | Hendrick | Hendrick | Hendrick | Hendrick | Hendrick | Hendrick | Hendrick | Hendrick | Hendrick |
| Ribble Valley | Evans | → | → | → | → | → | → | → | → | Ellis |
| Rossendale and Darwen | Berry | Berry | Berry | Berry | Berry | Berry | Berry | Berry | Berry | MacNae |
| South Ribble | Fullbrook | Fullbrook | Fullbrook | Fullbrook | Kennedy | Kennedy | Fletcher | Fletcher | Fletcher | Foster |
| West Lancashire | R. Cooper | R. Cooper | R. Cooper | R. Cooper | R. Cooper | R. Cooper | R. Cooper | Dalton | Dalton | Dalton |
| Wyre and Preston North | Wallace | Wallace | Wallace | Wallace | Wallace | Wallace | Wallace | Wallace | Wallace | N/A |