List of parliamentary constituencies in Northumberland

The county of Northumberland is divided into 4 parliamentary constituencies, all of which are county constituencies.

  † Conservative   ‡ Labour   ¤ Reform UK

Constituency[nb 1]	Electorate	Majority[nb 2]	Member of Parliament		Nearest opposition		Electoral wards[1]	Map
Blyth and Ashington CC	76,263	9,173		Ian Lavery‡		Mark Peart¤	Northumberland County Council: Ashington Central, Bedlington Central, Bedlington East, Bedlington West, Bothal, Choppington, College, Cowpen, Croft, Haydon, Hirst, Isabella, Kitty Brewster, Newbiggin Central and East, Newsham, Plessey, Seaton with Newbiggin West, Sleekburn, South Blyth, Stakeford, Wensleydale.
Cramlington and Killingworth CC	76,228	12,820		Emma Foody‡		Gordon Fletcher¤	Newcastle City Council: Castle (polling districts F01, F02 and F03). North Tyneside Council: Camperdown, Killingworth, Valley, Weetslade. Northumberland County Council: Cramlington East, Cramlington Eastfield, Cramlington North, Cramlington South East, Cramlington Village, Cramlington West, Hartley, Holywell, Seghill with Seaton Delaval.
Hexham CC	76,431	3,713		Joe Morris‡		Guy Opperman†	Newcastle City Council: Callerton and Throckley. Northumberland County Council: Bellingham, Bywell, Corbridge, Haltwhistle, Haydon and Hadrian, Hexham Central with Acomb, Hexham East, Hexham West, Humshaugh, Longhorsley, Ponteland East and Stannington, Ponteland North, Ponteland South with Heddon, Ponteland West, Prudhoe North, Prudhoe South, South Tyneside, Stocksfield and Broomhaugh.
North Northumberland CC	74,132	5,067		David Smith‡		Anne-Marie Trevelyan†	Northumberland County Council: Alnwick, Amble, Amble West with Warkworth, Bamburgh, Berwick East, Berwick North, Berwick West with Ord, Druridge Bay, Longhoughton, Lynemouth, Morpeth Kirkhill, Morpeth North, Morpeth Stobhill, Norham and Islandshires, Pegswood, Rothbury, Shilbottle, Wooler.

See 2023 Periodic Review of Westminster constituencies for further details.

Former name	Boundaries 2010-2024	Current name	Boundaries 2024–present
Berwick-upon-Tweed CC Blyth Valley BC Hexham CC Wansbeck CC		Blyth and Ashington BC Cramlington and Killingworth CC Hexham CC North Northumberland CC

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 Northumberland with the Tyne and Wear boroughs of Newcastle upon Tyne and North Tyneside as a sub-region of the North East Region, with the creation of two cross-county boundary constituencies, resulting in the abolition of Berwick-upon-Tweed, Blyth Valley and Wansbeck.^{[2] [3]}

The following seats resulted from the boundary review in Northumberland:

• Blyth and Ashington
• Cramlington and Killingworth (parts also in Newcastle upon Tyne and North Tyneside)
• Hexham (part in Newcastle upon Tyne)
• North Northumberland

Under the Fifth Periodic Review of Westminster constituencies, the Boundary Commission for England decided to retain Northumberland's constituencies for the 2010 election, making a very small change between Berwick-upon-Tweed and Hexham to realign constituency boundaries with the boundaries of current local government wards.

Name	Boundaries 1997-2010	Boundaries 2010–2024
Berwick-upon-Tweed CC Blyth Valley BC Hexham CC Wansbeck CC

Primary data source: House of Commons research briefing - General election results from 1918 to 2019^[4]

The number of votes cast for each political party who fielded candidates in constituencies comprising Northumberland in the 2024 general election were as follows:

Party	Votes	%	Change from 2019	Seats	Change from 2019
Labour	84,147	45.1%	11.2%	4	3
Conservative	47,776	25.6%	23.2%	0	3
Reform UK	27,999	15.0%	11.1%	0	0
Liberal Democrats	10,876	5.8%	4.2%	0	0
Greens	8,314	4.5%	1.3%	0	0
Others	7,354	3.9%	3.7%	0	0
Total	186,466	100.0		4

¹1983 & 1987 - SDP-Liberal Alliance

²2019 - Brexit Party

* Included in Other

¹1983 & 1987 - SDP-Liberal Alliance

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  1886
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  2024

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.

  Conservative   Labour   Liberal   Liberal-Labour   Liberal Unionist

  Coalition Liberal (1918-22) / National Liberal (1922-23)   Coalition National Democratic & Labour   Conservative   Independent Conservative   Labour   Liberal   National Liberal (1931-68)   Speaker

¹ original 1922 victor Hilton Philipson (National Liberal) declared void due to electoral fraud. Mabel Philipson won the subsequent by-election for the Conservatives.

  Conservative   Independent Labour   Labour   Liberal   National Liberal (1931-68)   Social Democratic   Speaker

  Conservative   Labour   Liberal   Liberal Democrats

¹contains areas of Tyne and Wear since 2024

• List of parliamentary constituencies in the North East (region)
• History of parliamentary constituencies and boundaries in Northumberland