# Parliamentary constituencies in Cornwall

The ceremonial county of Cornwall, which includes the Isles of Scilly, is divided into six parliamentary constituencies. They are all county constituencies.

## Parliamentary history of Cornwall

Four of the six Cornish parliamentary seats are currently held by Labour, after having no seats in Cornwall between the 2005 and 2024 general elections. Two are held by the Liberal Democrats since the 2024 election, after previously winning all Cornish constituencies in 2005 then losing three to the Conservatives in 2010, and losing the remaining three to the Conservatives in 2015. The Conservatives, who had won no Cornish seats in 1997, 2001 and 2005, held three from 2010 and all six from 2015 to 2024. In 2017, several previous Liberal Democrat candidates, including previous MPs Andrew George and Steve Gilbert stood in their old seats, but failed to be re-elected. In all six seats, the Labour vote surged, pushing the Liberal Democrats into third place in four of the six seats. In the 2019 election, Labour retained their position as the second-placed party in most of the Cornish seats, holding their vote up far better in the region than elsewhere in the country.
In the 2024 election, the Conservatives lost all six seats, four of them going to Labour and the other two going to the Liberal Democrats, with Andrew George (MP for St Ives 1997-2015) retaking his St Ives seat for the first time since 2015 - George stood in his St Ives constituency in every election since 1992, winning in six out of nine elections. This marked the first time since 2005 that the Conservatives held no seats in Cornwall, the first time since 2015 that the Liberal Democrats held any seats, and the first time since 2005 that the Labour Party held any seats. It is also the first time in history that the Labour Party has held a majority of Cornish seats, as well as the most seats they have ever gained there, previously only holding one seat in a number of elections, and thus is their best result in Cornwall ever. Reform UK failed to win any seats in Cornwall but came third in five out of six seats and fourth in the remaining seat, while the Green Party came fifth in all six seats and increased their vote share in all seats.

## Constituencies

Labour †  Conservative ‡  Liberal Democrat ¤
| Constituency | Electorate | Majority | Member of Parliament | Nearest opposition | Current electoral wards |
| Camborne and Redruth | 74,382 | 7,806 | Perran Moon † | Connor Donnithorne ‡ | Camborne Roskear & Tuckingmill Camborne Trelowarren Camborne West & Treswithian Constantine, Mabe & Mawnan Crowan, Sithney & Wendron (part) Falmouth Trescobeas & Budock (part) Four Lanes, Beacon & Troon Gwinear-Gwithian & Hayle East Hayle West Helston South & Meneage (part) Illogan & Portreath Lanner, Stithians & Gwennap (part) Mylor, Perranarworthal & Ponsanooth (part) Perranporth (part) Pool & Tehidy Redruth Central, Carharrack & St Day Redruth North Redruth South St Agnes (part) |
| North Cornwall | 76,741 | 10,767 | Ben Maguire ¤ | Scott Mann ‡ | Altarnun & Stoke Climsland Bodmin St Mary's & St Leonard Bodmin St Petroc Bude Camelford & Boscastle Lanivet, Blisland & Bodmin St Lawrence Launceston North & North Petherwin Launceston South Padstow Poundstock St Teath & Tintagel Stratton, Kilkhampton & Morwenstow Wadebridge East & St Minver Wadebridge West & St Mabyn |
| South East Cornwall | 72,654 | 1,911 | Anna Gelderd † | Sheryll Murray ‡ | Callington & St Dominic Calstock Liskeard Central Liskeard South & Dobwalls Looe East & Deviock Looe West, Pelynt, Lansallos & Lanteglos Lostwithiel & Lanreath Lynher Rame Peninsula & St Germans Roche & Bugle (part) Saltash Essa Saltash Tamar Saltash Trematon & Landrake St Cleer & Menheniot Torpoint |
| St Austell and Newquay | 76,076 | 2,470 | Noah Law † | Steve Double ‡ | Fowey, Tywardreath & Par Mevagissey & St Austell Bay Newquay Central & Pentire Newquay Porth & Tretherras Newquay Trenance Penwithick & Boscoppa Roche & Bugle (part) St Austell Bethel & Holmbush St Austell Central & Gover St Austell Poltair & Mount Charles St Blazey St Columb Major, St Mawgan & St Wenn St Columb Minor & Colan St Dennis & St Enoder St Goran, Tregony & the Roseland (part) St Mewan & Grampound St Newlyn East, Cubert & Goonhavern (part) St Stephen-in-Brannel |
| St Ives | 69,978 | 13,786 | Andrew George ¤ | Derek Thomas ‡ | Crowan, Sithney & Wendron (part) Helston North Helston South & Meneage (part) Land's End Long Rock, Marazion & St Erth Ludgvan, Madron, Gulval & Heamoor Mousehole, Newlyn & St Buryan Mullion & St Keverne Penzance East Penzance Promenade Porthleven, Breage & Germoe St Ives, Lelant & Carbis Bay St Ives West & Towednack Isles of Scilly |
| Truro and Falmouth | 72,982 | 8,151 | Jayne Kirkham † | Cherilyn Mackrory ‡ | Falmouth Arwenack Falmouth Boslowick Falmouth Penwerris Falmouth Trescobeas & Budock (part) Feock & Kea Gloweth, Malabar & Shortlanesend Lanner, Stithians & Gwennap (part) Mylor, Perranarworthal & Ponsanooth (part) Penryn Perranporth (part) Probus & St Erme St Agnes (part) St Goran, Tregony & the Roseland (part) St Newlyn East, Cubert & Goonhaven (part) Threemilestone & Chacewater Truro Boscawen & Redannick Truro Moresk & Trehaverne |

## Boundary changes
### 2024

See 2023 Periodic Review of Westminster constituencies for further details.
| Name | Boundaries 2010–2024 | Name | Boundaries 2024–present |
| Camborne and Redruth CC North Cornwall CC South East Cornwall CC St Austell and Newquay CC St Ives CC Truro and Falmouth CC | Parliamentary constituencies in Cornwall (2010-2024) | Camborne and Redruth CC North Cornwall CC South East Cornwall CC St Austell and Newquay CC St Ives CC Truro and Falmouth CC | Parliamentary constituencies in Cornwall (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 retained the six existing parliamentary constituencies in Cornwall with the same names and relatively minor alterations compared to other parts of the country.

### 2010

Under the Fifth Periodic Review of Westminster constituencies, the Boundary Commission for England decided to increase the number of seats which covered Cornwall from 5 to 6. Falmouth and Camborne, and Truro and St Austell were abolished and replaced by Camborne and Redruth, St Austell and Newquay, and Truro and Falmouth.
| Name (1997-2010) | Boundaries 1997–2010 | Name (2010-2024) | Boundaries 2010–2024 |
| Falmouth and Camborne CC North Cornwall CC South East Cornwall CC St Ives CC Truro and St Austell CC | Parliamentary constituencies in Cornwall | Camborne and Redruth CC North Cornwall CC South East Cornwall CC St Austell and Newquay CC St Ives CC Truro and Falmouth CC | Proposed Revised constituencies in Cornwall |

## Results history

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

### Vote breakdown

| Year | Labour | Labour | Labour | Conservative | Conservative | Conservative | Liberal Democrats | Liberal Democrats | Liberal Democrats | Reform | Reform | Reform | Green | Green | Green | UKIP | UKIP | UKIP | Mebyon Kernow | Mebyon Kernow | Mebyon Kernow | Others | Others | Notes |
| Year | Votes | % | -/+ | Votes | % | -/+ | Votes | % | -/+ | Votes | % | -/+ | Votes | % | -/+ | Votes | % | -/+ | Votes | % | -/+ | Votes | % | Notes |
| 2024 | 77,517 | 26.4 | +3.3 | 76,817 | 26.2 | -27.6 | 72,881 | 24.8 | +5.5 | 48,574 | 16.6 | +16.6 | 13,778 | 4.7 | +2.5 | 111 | 0.0 | +0.0 | did not contest | did not contest | did not contest | 3,629 | 1.3 | |
| 2019 | 74,392 | 23.1 | -3.6 | 173,027 | 53.8 | +5.4 | 62,165 | 19.3 | -4.2 | did not contest | did not contest | did not contest | 7,129 | 2.2 | +1.1 | did not contest | did not contest | did not contest | 1,660 | 0.5 | +0.5 | 3,602 | 1.1 | |
| 2017 | 83,968 | 26.7 | +14.4 | 152,428 | 48.4 | +5.3 | 73,875 | 23.5 | +1.1 | did not exist | did not exist | did not exist | 3,218 | 1.0 | -4.8 | 897 | 0.3 | -13.5 | did not contest | did not contest | did not contest | 323 | 0.1 | |
| 2015 | 36,235 | 12.3 | +3.7 | 127,079 | 43.1 | +2.2 | 66,056 | 22.4 | -19.4 | did not exist | did not exist | did not exist | 17,241 | 5.8 | +4.5 | 40,785 | 13.8 | +8.9 | 5,675 | 1.9 | | 1,757 | 0.6 | |
| 2010 | 24,257 | 8.6 | -7.0 | 115,016 | 40.9 | +9.1 | 117,307 | 41.8 | -2.6 | did not exist | did not exist | did not exist | 3,573 | 1.3 | +0.6 | 13,763 | 4.9 | -0.1 | 5,379 | 1.9 | +0.5 | 1,586 | 0.6 | |
| 2005 | 41,140 | 15.6 | -1.7 | 82,543 | 31.8 | -0.8 | 115,241 | 44.4 | -0.4 | did not exist | did not exist | did not exist | 1,738 | 0.7 | +0.7 | 12,863 | 5.0 | +1.3 | 3,552 | 1.4 | +0.1 | 2,356 | 0.9 | |
| 2001 | 43,674 | 17.3 | +0.2 | 82,227 | 32.6 | +2.2 | 113,000 | 44.8 | +0.9 | did not exist | did not exist | did not exist | did not contest | did not contest | did not contest | 9,290 | 3.7 | +2.7 | 3,199 | 1.3 | +0.6 | 727 | 0.3 | |
| 1997 | 47,913 | 17.1 | +3.2 | 85,077 | 30.4 | -12.3 | 123,124 | 43.9 | +2.2 | did not exist | did not exist | did not exist | 482 | 0.2 | -0.1 | 2,926 | 1.0 | +1.0 | 1,906 | 0.7 | +0.7 | 18,779 | 6.7 | |
| 1992 | 41,593 | 13.9 | +1.3 | 127,678 | 42.7 | -4.6 | 124,553 | 41.7 | +1.7 | did not exist | did not exist | did not exist | 1,035 | 0.3 | +0.3 | did not exist | did not exist | did not exist | did not contest | did not contest | did not contest | 4,098 | 1.4 | |
| 1987 | 34,994 | 12.6 | +3.7 | 131,194 | 47.3 | -2.0 | 111,064 | 40.0 | -0.8 | did not exist | did not exist | did not exist | did not contest | did not contest | did not contest | did not exist | did not exist | did not exist | did not contest | did not contest | did not contest | 373 | 0.1 | |
| 1983 | 22,838 | 8.9 | -3.7 | 126,182 | 49.3 | -1.3 | 104,365 | 40.8 | +6.6 | did not exist | did not exist | did not exist | 776 | 0.3 | -0.2 | did not exist | did not exist | did not exist | 1,151 | 0.5 | -1.1 | 677 | 0.3 | |

### Percentage votes

| Election year | 1923 | 1924 | 1929 | 1945 | 1950 | 1951 | 1955 | 1959 | 1964 | 1966 | 1970 | 1974 (Feb) | 1974 (Oct) | 1979 | 1983 | 1987 | 1992 | 1997 | 2001 | 2005 | 2010 | 2015 | 2017 | 2019 | 2024 |
| Labour | 2.3 | 9.7 | 18.1 | 25.4 | 29.6 | 33.3 | 30.7 | 27.5 | 25.9 | 27.6 | 24.6 | 19.6 | 20.0 | 12.6 | 8.9 | 12.6 | 13.9 | 17.1 | 17.3 | 15.9 | 8.6 | 12.3 | 26.7 | 23.1 | 26.4 |
| Conservative$^1$ | 35.0 | 48.6 | 38.4 | 42.0 | 44.2 | 50.5 | 48.5 | 43.8 | 41.1 | 41.1 | 47.9 | 41.8 | 43.6 | 50.6 | 49.3 | 47.3 | 42.7 | 30.4 | 32.6 | 31.8 | 40.9 | 43.1 | 48.4 | 53.8 | 26.2 |
| Liberal Democrat$^2$ | 52.6 | 41.7 | 42.4 | 32.6 | 26.2 | 16.2 | 20.8 | 28.7 | 32.8 | 30.6 | 27.0 | 38.2 | 35.2 | 34.2 | 40.8 | 40.0 | 41.7 | 44.0 | 44.8 | 44.4 | 41.8 | 22.4 | 23.5 | 19.3 | 24.8 |
| Reform | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 16.6 |
| Green Party | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | * | * | * | * | * | 1.3 | 5.8 | 1.0 | 2.2 | 4.7 |
| UKIP | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | * | * | * | 4.9 | 13.8 | 0.3 | – | 0.0 |
| Other | 10.0 | – | 1.2 | 0.4 | – | – | – | – | 0.1 | 0.7 | 0.4 | 0.4 | 1.2 | 2.6 | 1.0 | 0.1 | 1.7 | 8.6 | 5.2 | 7.9 | 2.5 | 2.5 | 0.1 | 1.6 | 1.3 |
$^1$Includes Constitutionalist in 1924 and National Liberal Party up to 1966
$^2$1950–1979 – Liberal; 1983 & 1987 – SDP-Liberal Alliance
Meaningful vote percentages are not applicable for the elections of 1918, 1922, 1931 and 1935 since one or more seats were gained unopposed.

### Seats

| Election year | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 | 1950 | 1951 | 1955 | 1959 | 1964 | 1966 | 1970 | 1974 (Feb) | 1974 (Oct) | 1979 | 1983 | 1987 | 1992 | 1997 | 2001 | 2005 | 2010 | 2015 | 2017 | 2019 | 2024 |
| Labour | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 4 |
| Liberal Democrat$^2$ | 2 | 1 | 4 | 0 | 5 | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 2 | 1 | 2 | 2 | 1 | 1 | 1 | 2 | 4 | 4 | 5 | 3 | 0 | 0 | 0 | 2 |
| Conservative$^1$ | 2 | 2 | 0 | 5 | 0 | 3 | 4 | 3 | 4 | 4 | 4 | 4 | 3 | 2 | 4 | 3 | 3 | 4 | 4 | 4 | 3 | 0 | 0 | 0 | 3 | 6 | 6 | 6 | 0 |
| National Liberal | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Independent Liberal | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Total | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 6 | 6 |
$^1$Includes Constitutionalist in 1924 and National Liberal Party up to 1966
$^2$pre-1979 – Liberal; 1983 & 1987 – SDP-Liberal Alliance

### Maps
#### 1885–1910

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

#### 1918–1945

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

#### 1950–present

* 1950
* 1951
* 1955
* 1959
* 1964
* 1966
* 1970
* 1974 Feb
* 1974 Oct
* 1979
* 1983
* 1987
* 1992
* 1997
* 2001
* 2005
* 2010
* 2015
* 2017
* 2019
* 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.

### 1832 to 1847 (14 MPs)

Conservative  Radical  Whig
| Constituency | 1832 | 1835 | 1837 | 38 | 40 | 1841 | 42 | 43 | 44 | 45 | 46 |
| Bodmin | Peter | C. Vivian | C. Vivian | C. Vivian | C. Vivian | C. Vivian | C. Vivian | Spry | Spry | Spry | Spry |
| Bodmin | Spry | Spry | → | → | → | Gardner | Gardner | Gardner | Gardner | Gardner | Gardner |
| Cornwall Eastern | Molesworth | Molesworth | R. H. Vivian | R. H. Vivian | R. H. Vivian | W. Rashleigh | W. Rashleigh | W. Rashleigh | W. Rashleigh | W. Rashleigh | W. Rashleigh |
| Cornwall Eastern | W. Salusbury-Trelawny | W. Salusbury-Trelawny | Eliot | Eliot | Eliot | Eliot | Eliot | Eliot | Eliot | Pole-Carew | Pole-Carew |
| Cornwall Western | Wynne-Pendarves | Wynne-Pendarves | Wynne-Pendarves | Wynne-Pendarves | Wynne-Pendarves | Wynne-Pendarves | Wynne-Pendarves | Wynne-Pendarves | Wynne-Pendarves | Wynne-Pendarves | Wynne-Pendarves |
| Cornwall Western | Lemon | Lemon | Lemon | Lemon | Lemon | Boscawen-Rose | Lemon | Lemon | Lemon | Lemon | Lemon |
| Helston | Lane-Fox | Townshend | Sackville | Sackville | Basset | R. Vyvyan | R. Vyvyan | R. Vyvyan | R. Vyvyan | R. Vyvyan | R. Vyvyan |
| Launceston | Hardinge | Hardinge | Hardinge | Hardinge | Hardinge | Hardinge | Hardinge | Hardinge | Bowles | Bowles | Bowles |
| Liskeard | C. Buller | C. Buller | C. Buller | C. Buller | C. Buller | C. Buller | C. Buller | C. Buller | C. Buller | C. Buller | C. Buller |
| Penryn & Falmouth | Rolfe | Rolfe | Rolfe | Rolfe | Hutchins | J. C. Vivian | J. C. Vivian | J. C. Vivian | J. C. Vivian | J. C. Vivian | J. C. Vivian |
| Penryn & Falmouth | Bury | Freshfield | Freshfield | Freshfield | Freshfield | Plumridge | Plumridge | Plumridge | Plumridge | Plumridge | Plumridge |
| St Ives | Halse | Halse | Halse | W. Praed | W. Praed | W. Praed | W. Praed | W. Praed | W. Praed | W. Praed | Powlett |
| Truro | R. H. Vivian | J. E. Vivian | J. E. Vivian | J. E. Vivian | J. E. Vivian | J. E. Vivian | J. E. Vivian | J. E. Vivian | J. E. Vivian | J. E. Vivian | J. E. Vivian |
| Truro | Tooke | Tooke | Turner | Turner | Turner | Turner | Turner | Turner | Turner | Turner | Turner |

### 1847 to 1868 (14 MPs)

Conservative  Independent Liberal  Liberal  Peelite  Radical  Whig
| Constituency | 1847 | 49 | 1852 | 53 | 54 | 1857 | 58 | 1859 | 59 | 65 | 1865 | 66 | 68 |
| Bodmin | Wyld | Wyld | Michell | Michell | Michell | J. C. Vivian | J. C. Vivian | Leveson-Gower | Leveson-Gower | Leveson-Gower | Leveson-Gower | Leveson-Gower | Leveson-Gower |
| Bodmin | Lacy | Lacy | Graves-Sawle | Graves-Sawle | Graves-Sawle | Wyld | Wyld | Michell | Wyld | Wyld | Wyld | Wyld | Wyld |
| Cornwall Eastern | T. J. Agar-Robartes | T. J. Agar-Robartes | T. J. Agar-Robartes | T. J. Agar-Robartes | T. J. Agar-Robartes | T. J. Agar-Robartes | T. J. Agar-Robartes | → | → | → | → | → | → |
| Cornwall Eastern | Pole-Carew | Pole-Carew | Kendall | Kendall | Kendall | Kendall | Kendall | Kendall | Kendall | Kendall | Kendall | Kendall | Kendall |
| Cornwall Western | Wynne-Pendarves | Wynne-Pendarves | Wynne-Pendarves | Williams | Williams | Williams | St Aubyn | → | → | → | → | → | → |
| Cornwall Western | Lemon | Lemon | Lemon | Lemon | Lemon | Davey | Davey | → | → | → | → | → | → |
| Helston | R. Vyvyan | R. Vyvyan | R. Vyvyan | R. Vyvyan | R. Vyvyan | Trueman | Trueman | Rogers | Rogers | Rogers | Young | W. Brett | W. Brett |
| Launceston | Bowles | Bowles | Percy | Percy | Percy | Percy | Percy | Haliburton | Haliburton | Haliburton | Campbell | Campbell | Lopes |
| Liskeard | C. Buller | Crowder | Crowder | Crowder | Grey | Grey | Grey | Osborne | Osborne | Osborne | A. Buller | A. Buller | A. Buller |
| Penryn & Falmouth | Gwyn | Gwyn | Gwyn | Gwyn | Gwyn | Baring | Baring | → | → | → | → | Smith | Smith |
| Penryn & Falmouth | Mowatt | Mowatt | Freshfield | Freshfield | Freshfield | Gurney | Gurney | Gurney | Gurney | Gurney | Gurney | Gurney | Gurney |
| St Ives | Powlett | Powlett | Laffan | Laffan | Laffan | Paull | Paull | Paull | Paull | Paull | Paull | Paull | Paull |
| Truro | J. E. Vivian | J. E. Vivian | J. E. Vivian | J. E. Vivian | J. E. Vivian | A. Smith | A. Smith | → | → | → | J. C. Vivian | J. C. Vivian | J. C. Vivian |
| Truro | Turner | H. Willyams | H. Vivian | H. Vivian | H. Vivian | E. Willyams | E. Willyams | M. Smith | M. Smith | F. Williams | F. Williams | F. Williams | F. Williams |

### 1868 to 1885 (13 MPs)

Conservative  Liberal
| Constituency | 1868 | 69 | 71 | 1874 | 74 | 76 | 77 | 78 | 1880 | 81 | 82 | 85 |
| Bodmin | Leveson-Gower | Leveson-Gower | Leveson-Gower | Leveson-Gower | Leveson-Gower | Leveson-Gower | Leveson-Gower | Leveson-Gower | Leveson-Gower | Leveson-Gower | Leveson-Gower | Leveson-Gower |
| Cornwall Eastern | E. Willyams | E. Willyams | E. Willyams | C. Rashleigh | C. Rashleigh | C. Rashleigh | C. Rashleigh | C. Rashleigh | T. C. Agar-Robartes | T. C. Agar-Robartes | Dyke Acland | Dyke Acland |
| Cornwall Eastern | J. Salusbury-Trelawney | J. Salusbury-Trelawney | J. Salusbury-Trelawney | J. Tremayne | J. Tremayne | J. Tremayne | J. Tremayne | J. Tremayne | Borlase | Borlase | Borlase | Borlase |
| Cornwall Western | St Aubyn | St Aubyn | St Aubyn | St Aubyn | St Aubyn | St Aubyn | St Aubyn | St Aubyn | St Aubyn | St Aubyn | St Aubyn | St Aubyn |
| A. Vivian ||||||||||||
| Helston | Young | Young | Young | Young | Young | Young | Young | Young | Molesworth-St Aubyn | Molesworth-St Aubyn | Molesworth-St Aubyn | Molesworth-St Aubyn |
| Launceston | Lopes | Lopes | Lopes | Deakin | Deakin | Deakin | Giffard | Giffard | Giffard | Giffard | Giffard | Webster |
| Liskeard | A. Buller | Horsman | Horsman | Horsman | Horsman | Courtney | Courtney | Courtney | Courtney | Courtney | Courtney | Courtney |
| Penryn & Falmouth | Fowler | Fowler | Fowler | Jenkins | Jenkins | Jenkins | Jenkins | Jenkins | Jenkins | Jenkins | Jenkins | Jenkins |
| Penryn & Falmouth | Eastwick | Eastwick | Eastwick | Cole | Cole | Cole | Cole | Cole | R. Brett | R. Brett | R. Brett | R. Brett |
| St Ives | Magniac | Magniac | Magniac | Davenport | C. Praed | C. Praed | C. Praed | C. Praed | Reed | Ross | Ross | Ross |
| Truro | J. C. Vivian | J. C. Vivian | McGarel-Hogg | McGarel-Hogg | McGarel-Hogg | McGarel-Hogg | McGarel-Hogg | McGarel-Hogg | McGarel-Hogg | McGarel-Hogg | McGarel-Hogg | McGarel-Hogg |
| Truro | F. Williams | F. Williams | F. Williams | F. Williams | F. Williams | F. Williams | F. Williams | A. Tremayne | E. Willyams | E. Willyams | E. Willyams | E. Willyams |

### 1885 to 1906 (7 MPs)

Conservative  Independent Liberal  Liberal  Liberal Unionist
| Constituency | 1885 | 1886 | 87 | 1892 | 1895 | 98 | 99 | 1900 | 03 | 04 |
| Bodmin | Courtney | → | → | → | → | → | → | Molesworth | Molesworth | Molesworth |
| Camborne | Conybeare | → | → | → | Strauss | Strauss | Strauss | Caine | Lawson | Lawson |
| Launceston | C. Dyke-Acland | C. Dyke-Acland | C. Dyke-Acland | Owen | Owen | Moulton | Moulton | Moulton | Moulton | Moulton |
| Penryn and Falmouth | Jenkins | Cavendish-Bentinck | Cavendish-Bentinck | Cavendish-Bentinck | Horniman | Horniman | Horniman | Horniman | Horniman | Horniman |
| St Austell | Borlase | Borlase | McArthur | McArthur | McArthur | McArthur | McArthur | McArthur | McArthur | McArthur |
| St Ives | St Aubyn | → | Bolitho | Bolitho | Bolitho | Bolitho | Bolitho | Hain | Hain | → |
| Truro | Bickford-Smith | → | → | Williams | Durning-Lawrence | Durning-Lawrence | Durning-Lawrence | Durning-Lawrence | Durning-Lawrence | Durning-Lawrence |

### 1906 to 1918 (7 MPs)

Conservative  Liberal  Liberal Unionist
| Constituency | 1906 | 06 | 08 | Jan 1910 | Dec 1910 | 12 | 15 | 16 |
| Bodmin | Agar-Robartes | Freeman-Thomas | Freeman-Thomas | Grenfell | Pole-Carew | → | → | Hanson |
| Camborne | Dunn | Dunn | Dunn | Dunn | F. Dyke Acland | F. Dyke Acland | F. Dyke Acland | F. Dyke Acland |
| Launceston | Marks | Marks | Marks | Marks | Marks | Marks | Marks | Marks |
| Penryn and Falmouth | Barker | Barker | Barker | Goldman | Goldman | Goldman | Goldman | Goldman |
| St Austell | McArthur | McArthur | Agar-Robartes | Agar-Robartes | Agar-Robartes | Agar-Robartes | Layland-Barratt | Layland-Barratt |
| St Ives | Cory | Cory | Cory | Cory | Cory | Cory | Cory | Cory |
| Truro | Morgan | Morgan | Morgan | Morgan | Morgan | Morgan | Morgan | Morgan |

### 1918 to 1931 (5 MPs)

Coalition Liberal (1918–22) / National Liberal (1922–23)  Conservative  Constitutionalist  Independent Liberal  Liberal  National Liberal (1931–68)
| Constituency | 1918 | 22 | 1922 | 1923 | 1924 | 24 | 28 | 1929 | 31 |
| Bodmin | Hanson | Foot | Foot | Foot | Harrison | Harrison | Harrison | Foot | Foot |
| Camborne | Dyke Acland | Dyke Acland | Moreing | Jones | Moreing | → | → | Jones | Jones |
| Cornwall North | Marks | Marks | → | → | Williams | Williams | Williams | Maclean | Maclean |
| Penryn and Falmouth | Nicholl | Nicholl | Shipwright | Mansel | Pilcher | Pilcher | Pilcher | Walters | Walters |
| St Ives | Cory | Cory | Hawke | Cory | Hawke | Hawke | H. Runciman | W. Runciman | → |

### 1931 to 1950 (5 MPs)

Conservative  Independent  Labour  Liberal  National Liberal (1931–68)
| Constituency | 1931 | 32 | 1935 | 37 | 39 | 41 | 1945 | 46 | 47 |
| Bodmin | Foot | Foot | Rathbone | Rathbone | Rathbone | B. Rathbone | Marshall | Marshall | Marshall |
| Camborne | Agnew | Agnew | Agnew | Agnew | Agnew | Agnew | Agnew | Agnew | Agnew |
| Cornwall North | Maclean | Dyke Acland | Dyke Acland | Dyke Acland | Horabin | Horabin | Horabin | → | → |
| Penryn and Falmouth | Petherick | Petherick | Petherick | Petherick | Petherick | Petherick | King | King | King |
| St Ives | W. Runciman | W. Runciman | W. Runciman | Beechman | Beechman | Beechman | Beechman | Beechman | Beechman |

### 1950 to 1983 (5 MPs)

Conservative  Labour  Liberal  Liberal Democrats  National Liberal (1931–68)
| Constituency | 1950 | 1951 | 1955 | 1959 | 1964 | 1966 | 68 | 1970 | Feb 1974 | Oct 1974 | 1979 |
| Bodmin | Marshall | Marshall | Marshall | Marshall | Bessell | Bessell | Bessell | Hicks | Tyler | Hicks | Hicks |
| Cornwall North | Roper | Roper | Roper | Scott-Hopkins | Scott-Hopkins | Pardoe | Pardoe | Pardoe | Pardoe | Pardoe | Neale |
| Falmouth & Camborne | Hayman | Hayman | Hayman | Hayman | Hayman | Dunwoody | Dunwoody | Mudd | Mudd | Mudd | Mudd |
| St Ives | Howard | Howard | Howard | Howard | Howard | Nott | → | → | → | → | → |
| Truro | Wilson | Wilson | Wilson | Wilson | Wilson | Wilson | Wilson | Dixon | Dixon | Penhaligon | Penhaligon |

### 1983 to 2010 (5 MPs)

Conservative  Labour  Liberal  Liberal Democrats  National Liberal (1931–68)
| Constituency | 1983 | 87 | 1987 | 88 | 1992 | 1997 | 2001 | 2005 |
| Cornwall North | Neale | Neale | Neale | Neale | Tyler | Tyler | Tyler | Rogerson |
| Cornwall South East | Hicks | Hicks | Hicks | Hicks | Hicks | Breed | Breed | Breed |
| Falmouth and Camborne | Mudd | Mudd | Mudd | Mudd | Coe | Atherton | Atherton | Goldsworthy |
| St Ives | Harris | Harris | Harris | Harris | Harris | George | George | George |
| Truro / Truro & St Austell ('97) | Penhaligon | Taylor | Taylor | → | → | → | → | → |

### 2010 to present (6 MPs)

Conservative  Labour  Liberal Democrats
| Constituency | 2010 | 2015 | 2017 | 2019 | 2024 |
| Camborne and Redruth | Eustice | Eustice | Eustice | Eustice | Moon |
| North Cornwall | Rogerson | Mann | Mann | Mann | Maguire |
| South East Cornwall | Murray | Murray | Murray | Murray | Gelderd |
| St Austell and Newquay | Gilbert | Double | Double | Double | Law |
| St Ives | George | Thomas | Thomas | Thomas | George |
| Truro and Falmouth | Newton | Newton | Newton | Mackrory | Kirkham |