List of Parliamentary constituencies in Northamptonshire

  Conservative †   Labour ‡

Constituency[nb 1]	Electorate[1]	Majority[2][nb 2]	Member of Parliament[2]		Nearest opposition[2]		Map
Corby CC	86,153	10,268		Tom Pursglove †		Beth Miller ‡
Daventry CC	77,423	26,080		Chris Heaton-Harris †		Paul Joyce ‡
Kettering CC	73,164	16,765		Philip Hollobone †		Clare Pavitt ‡
Northampton North BC	58,768	5,507		Michael Ellis †		Sally Keeble ‡
Northampton South BC	62,163	4,697		Andrew Lewer †		Gareth Eales ‡
South Northamptonshire CC	90,842	27,761		Andrea Leadsom †		Gen Kitchen ‡
Wellingborough CC	80,765	18,540		Peter Bone †		Andrea Watts ‡

Name	Previous boundaries
Corby CC Daventry CC Kettering CC Northampton North BC South Northampton CC Wellingborough CC	Parliamentary constituencies in Northamptonshire

The Boundary Commission for England has recommended that the county should in future be divided into 7 constituencies. These changes were implemented at the 2010 United Kingdom general election.

Proposed name	Current boundaries
Corby CC Daventry CC Kettering CC Northampton North BC Northampton South BC South Northamptonshire CC Wellingborough CC	Proposed Revised constituencies in Northamptonshire

The Boundary Commission for England submitted their final proposals in respect of the Sixth Periodic Review of Westminster Constituencies (the 2018 review) in September 2018. Although the proposals were immediately laid before Parliament they were not brought forward by the Government for approval. Accordingly, they did not come into effect for the 2019 election which took place on 12 December 2019, and which was contested using the constituency boundaries in place since 2010.

Under the terms of the Parliamentary Voting System and Constituencies Act 2011, the Sixth Review was based on reducing the total number of MPs from 650 to 600 and a strict electoral parity requirement that the electorate of all constituencies should be within a range of 5% either side of the electoral quota.

On 24 March 2020, the Minister of State for the Cabinet Office, Chloe Smith, issued a written statement to Parliament setting out the Government's thinking with regard to parliamentary boundaries.[3] Subsequently, the Parliamentary Constituencies Act 2020[4] was passed into law on 14 December 2020. This formally removed the duty to implement the 2018 review and set out the framework for future boundary reviews. The Act provided that the number of constituencies should remain at the current level of 650, rather than being reduced to 600, while retaining the requirement that the electorate should be no more than +/- 5% from the electoral quota.

The Act specified that the next review should be completed no later than 1 July 2023 and the Boundary Commission formally launched the 2023 Review on 5 January 2021.[5] See 2023 Periodic Review of Westminster constituencies for further details.

Primary data source: House of Commons research briefing - General election results from 1918 to 2019[6]

2019

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

Party	Votes	%	Change from 2017	Seats	Change from 2017
Conservative	216,229	59.0%	3.3%	7	0
Labour	106,611	29.1%	6.8%	0	0
Liberal Democrats	30,813	8.4%	4.3%	0	0
Greens	10,514	2.9%	1.2%	0	0
Others	2,276	0.6%	2.0%	0	0
Total	366,443	100.0		7

A cell marked → (with a different colour background to the preceding cell) indicates that the previous MP continued to sit under a new party name.

• List of Parliamentary constituencies in the East Midlands (region)