List of Parliamentary constituencies in Cornwall

All six parliamentary seats are currently held by Conservatives, having came from holding no seats in 1997, 2001 and 2005, to gaining three of the six from the Liberal Democrats in 2010, to gaining the remaining three to hold all six Cornish seats in 2015. All six MPs were re-elected in 2017. In that election, several previous Liberal Democrat candidates, including previous MPs Andrew George and Steve Gilbert re-stood in their old seats, but failed to be re-elected. In all six seats, the Labour vote surged, pushing the Liberals into third place in four of the six seats. The last Labour MP for a Cornish constituency was Candy Atherton, who held the seat of Falmouth and Camborne between 1997 and 2005.

  Conservative †   Labour ‡   Liberal Democrat ¤

Constituency	Electorate[1]	Majority[2][nb 1]	Member of Parliament[2]		Nearest opposition[2]		Electoral wards[3]	Electoral wards (no longer used)[4][5]	Map
Camborne and Redruth	70,250	8,700		George Eustice †		Paul Farmer ‡	Camborne Pendarves Camborne Roskear Camborne Trelowarren Camborne Treslothan Camborne Treswithian Carharrack, Gwennap and St Day (Split between "Camborne and Redruth" and "Truro and Falmouth") Constantine, Mawnan and Budock Crowan and Wendron (Split between "Camborne and Redruth" and "St Ives") Four Lanes Gwinear, Gwithian and St Erth (Split between "Camborne and Redruth" and "St Ives") Hayle North Hayle South Illogan Lanner and Stithians Mabe, Perranarworthal and St Gluvias (Split between "Camborne and Redruth" and "Truro and Falmouth") Mount Hawke and Portreath Pool and Tehidy Redruth Central Redruth North Redruth South St Agnes (Split between "Camborne and Redruth" and "Truro and Falmouth") St Keverne and Meneage	Carrick District Council: Mount Hawke Kerrier District Council: Camborne North Camborne South Camborne West Constantine Gweek and Mawnan Illogan North Illogan South Mabe and Budock Redruth North Redruth South St Day Lanner and Carharrack Stithians Wendron Penwith District Council: Gwinear, Gwithian and Hayle East Hayle North Hayle South
North Cornwall	69,935	14,752		Scott Mann †		Danny Chambers ¤	Altarnun Bodmin St Leonard Bodmin St Marys Bodmin St Petroc Bude Camelford Grenville and Stratton Lanivet and Blisland Launceston Central Launceston North and North Petherwin Launceston South Padstow Poundstock St Issey and St Tudy St Minver and St Endellion St Teath and St Breward Stokeclimsland Tintagel Wadebridge East Wadebridge West	North Cornwall District Council: Allan Altarnun Blisland and St Breward Bodmin St Mary's Bodmin St Petroc Bude Camelford Camelot Grenville Lanivet Launceston Marhamchurch North Petherwin Padstow and District Poughill and Stratton St Endellion and St Kew St Minver South Petherwin Stokeclimsland Tremaine Valency Wadebridge Week St Mary Whitstone
South East Cornwall	71,825	20,971		Sheryll Murray †		Gareth Derrick ‡	Bugle (Split between "South East Cornwall" and "St Austell and Newquay") Callington Gunnislake and Calstock Liskeard East Liskeard North Liskeard West and Dobwalls Looe East Looe West and Lansallos Lostwithiel Lynher Menheniot Rame Peninsula Saltash East Saltash North Saltash South Saltash West St Cleer St Dominick Harrowbarrow and Kelly Bray St Germans and Landulph Torpoint East Torpoint West Trelawny	Caradon District Council: Callington Calstock Deviock and Sheviock Dobwalls and District Duloe Lansallos and Pelynt Landrake and St Dominick Lanteglos and St Veep Liskeard North Liskeard South Looe and St Martin Lynher Menheniot and St Ive Millbrook Rame Peninsula St Cleer and St Neot St Germans Saltash Burraton Saltash Essa Saltash Pill Saltash St Stephens Torpoint East Torpoint West Restormel Borough Council: Lostwithiel
St Austell and Newquay	79,930	16,526		Steve Double †		Felicity Owen ‡	Bugle (Split between "South East Cornwall" and "St Austell and Newquay") Fowey and Tywardreath Mevagissey Mount Charles Newlyn and Goonhavern (Split between "St Austell and Newquay" and "Truro and Falmouth") Newquay Central Newquay Pentire Newquay Treloggan Newquay Tretherras Newquay Treviglas Par and St Blazey Gate Penwithick and Boscoppa Probus, Tregony and Grampound (Split between "St Austell and Newquay" and "Truro and Falmouth") Roche Roseland (Split between "St Austell and Newquay" and "Truro and Falmouth") St Austell Bay St Austell Bethel St Austell Gover St Austell Poltair St Blazey St Columb Major St Dennis and Nanpean St Enoder St Mawgan and Colan St Mewan St Stephen-in-Brannel	Restormel Borough Council: Bethel Crinnis Edgcumbe North Edgcumbe South Fowey and Tywardreath Gannel Gover Mevagissey Mount Charles Poltair Rialton Rock St Blaise St Columb St Enoder St Ewe St Stephen Treverbyn
St Ives	68,795	4,284		Derek Thomas †		Andrew George ¤	Breage, Germoe and Sithney Crowan and Wendron (Split between "Camborne and Redruth" and "St Ives") Gulval and Heamoor Gwinear, Gwithian and St Erth (Split between "Camborne and Redruth" and "St Ives") Helston North Helston South Lelant and Carbis Bay Ludgvan Marazion and Perranuthnoe Mullion and Grade Ruan Newlyn and Mousehole Penzance Central Penzance East Penzance Promenade Porthleven and Helston West St Buryan St Ives East St Ives West St Just in Penwith St Keverne and Meneage	Kerrier District Council: Breage and Crowan Grade-Ruan and Landewednack Helston North Helston South Meneage Mullion Porthleven and Sithney St Keverne Penwith District Council: Goldsithney Gulval and Heamoor Lelant and Carbis Bay Ludgvan and Towednack Madron and Zennor Marazion and Perranuthnoe Morvah Pendeen and St Just Penzance Central Penzance East Penzance Promenade Penzance South, St Buryan St Erth and St Hilary St Ives North St Ives South. Isles of Scilly
Truro and Falmouth	76,719	4,561		Cherilyn Mackrory †		Jennifer Forbes ‡	Carharrack, Gwennap and St Day (Split between "Camborne and Redruth" and "Truro and Falmouth") Chacewater, Kenwyn and Baldhu Falmouth Arwenack Falmouth Boslowick Falmouth Penwerris Falmouth Smithick Falmouth Trescobeas Feock and Playing Place Ladock, St Clement and St Erme Mabe, Perranarworthal and St Gluvias (Split between "Camborne and Redruth" and "Truro and Falmouth") Newlyn and Goonhavern (Split between "St Austell and Newquay" and "Truro and Falmouth") Penryn East and Mylor Penryn West Perranporth Probus, Tregony and Grampound (Split between "St Austell and Newquay" and "Truro and Falmouth") Roseland (Split between "St Austell and Newquay" and "Truro and Falmouth") St Agnes (Split between "Camborne and Redruth" and "Truro and Falmouth") Threemilestone and Gloweth Truro Boscawen Truro Redannick Truro Tregolls Truro Trehaverne	Carrick District Council: Arwenack Boscawen Boslowick Carland Feock and Kea Kenwyn and Chacewater Moresk Mylor Newlyn and Goonhavern Penryn Penwerris Perranporth Probus Roseland St Agnes Tregolls Trehaverne and Gloweth Trescobeas

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.[6] Subsequently, the Parliamentary Constituencies Act 2020[7] 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.[8] 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[9]

Vote breakdown

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

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 constituencies in South West England