Corby and East Northamptonshire
County constituency for the House of Commons
Interactive map of boundaries from 2024
Boundary in the East Midlands
County	Northamptonshire
Electorate	76,748 (2023)[1]
Major settlements	Corby, Irthlingborough, Raunds, Thrapston and Oundle
Current constituency
Created	1983 (renamed in 2024)
Member of Parliament	Lee Barron (Labour)
Created from	Kettering and Wellingborough

Corby and East Northamptonshire is a constituency^{[n 1]} in the English county of Northamptonshire. It is represented in the House of Commons of the UK Parliament since July 2024 by Lee Barron, of the Labour Party.^{[n 2]}

Prior to the 2023 Periodic Review of Westminster constituencies, the constituency was known as Corby. The 2024 general election was the first general election in which the 'Corby and East Northamptonshire' constituency was contested following the boundary changes of 2023.^[2]

From 1832 – 1918, the village of Corby was part of the North Northamptonshire constituency, which consisted of most of the Soke of Peterborough, the towns of Oundle and Thrapston and the surrounding villages and hamlets of north-eastern Northamptonshire.^[3]

The North Northamptonshire constituency boundaries were changed slightly in 1885, with some of the constituency being transferred to the newly created Mid Northamptonshire constituency. However, Corby remained within the revised constituency of North Northamptonshire.^[4]

The North Northamptonshire constituency was abolished in 1918 for that year's general election, and from 1918, Corby was part of the Kettering constituency. Corby remained part of the Kettering constituency until 1983. The Parliamentary seat of 'Corby' was created due to population increases in and around the town of Corby for the 1983 general election. Since creation, the Corby constituency has been a marginal seat being won by the party that won the national election at each general election since its creation. The first Member of Parliament elected for the constituency in 1983 was William Powell, who represented the Conservatives for three sessions of Parliament until 1997. Labour then held the seat until 2010.

On 6 August 2012, MP for the seat since 2010 Louise Mensch (formerly Louise Bagshawe) announced she was resigning, triggering a by-election held on 15 November 2012. Labour's Andy Sawford won, becoming the first Labour MP for the seat since Phil Hope was defeated in 2010, and only the second in the seat's history. This was Labour's first by-election win from a Conservative since the 1997 Wirral South by-election. At the 2015 general election Tom Pursglove standing for the Conservatives won with a small majority. He won again with a similar margin in 2017 and in 2019 Tom Pursglove took the seat for the third time, but with a majority of over 10,000, turning Corby into a non-marginal seat by Conservative Party standards.

At the 2024 general election, the seat was gained by Labour's Lee Barron amidst their national landslide victory, continuing the seat's bellwether streak of voting for the party that won nationally at every general election since its creation in 1983.

1983–2010: The District of Corby, and the District of East Northamptonshire wards of Barnwell, Brigstock, Drayton, Forest, Irthlingborough, King's Cliffe, Lower Nene, Margaret Beaufort, Oundle, Raunds, Ringstead, Stanwick, Thrapston, Willibrook, and Woodford.

2010–2021: The Borough of Corby, and the District of East Northamptonshire wards of Barnwell, Dryden, Fineshade, Irthlingborough, King's Forest, Lower Nene, Lyveden, Oundle, Prebendal, Raunds Saxon, Raunds Windmill, Ringstead, Stanwick, Thrapston, and Woodford.

2021–2024: With effect from 1 April 2021, the Borough of Corby and the District of East Northamptonshire were abolished and absorbed into the new unitary authority of North Northamptonshire.^[5] From that date, the constituency comprised the District of North Northamptonshire wards of Corby Rural, Corby West, Irthlingborough, Kingswood, Lloyds, Oakley, Oundle, Raunds and Thrapston.

The constituency was created in 1983 from parts of the seats of Kettering and Wellingborough. It is named after the town of Corby in Northamptonshire, and also covers much of the local government district of East Northamptonshire, but excluding Rushden and Higham Ferrers which are in the Wellingborough constituency. The seat is a highly marginal contest between the Tories and Labour, with Labour's vote strongest in the town of Corby itself, against the solidly Conservative rural areas of East Northamptonshire.^[6]

The constituency was sometimes informally called "Corby and East Northamptonshire",^[7] but the 2007 Parliamentary Constituencies Order^[8] and Whitaker's Almanack both make it clear that, until 2024, its official name was "Corby".

Following to the 2023 Periodic Review of Westminster constituencies, which came into effect for the 2024 general election, the constituency is composed of the following wards of the District of North Northamptonshire:

• Corby Rural (part); Corby West; Irthlingborough (part); Kingswood; Lloyds; Oakley; Oundle; Raunds; Thrapston.^[9]

Parts of the Corby Rural and Irthlingborough wards were transferred to Kettering, and Wellingborough and Rushden respectively.

Kettering and Wellingborough prior to 1983

General election 2024: Corby and East Northamptonshire^[11]

Party		Candidate	Votes	%	±%
	Labour	Lee Barron	21,020	42.4	+3.9
	Conservative	Tom Pursglove	14,689	29.6	−25.0
	Reform UK	Edward McDonald	8,760	17.7	N/A
	Green	Lee Forster	2,507	5.1	N/A
	Liberal Democrats	Chris Lofts	2,191	4.4	−2.4
	Independent	Karen Blott	422	0.9	N/A
Majority			6,331	12.8	N/A
Turnout			49,589	63.8	−6.4
Registered electors			78,787
	Labour gain from Conservative		Swing	14.8

• List of parliamentary constituencies in Northamptonshire

• Corby UK Parliament constituency (boundaries April 1997 – April 2010) at MapIt UK
• Corby UK Parliament constituency (boundaries April 2010 – May 2024) at MapIt UK
• Corby and East Northamptonshire UK Parliament constituency (boundaries from June 2024) at MapIt UK

52°29′N 0°32′W / 52.48°N 0.53°W / 52.48; -0.53