List of Parliamentary constituencies in Northumberland

  † Conservative  ‡ Labour

Constituency[nb 1]	Electorate[1]	Majority[2][nb 2]	Member of Parliament[2]		Nearest opposition[2]		Electoral wards[3][4]	Map
Berwick-upon-Tweed CC	59,939	14,835		Anne-Marie Trevelyan†		Trish Williams‡	Alnwick District Council: Alnmouth and Lesbury, Alnwick Castle, Alnwick Clayport, Alnwick Hotspur, Amble Central, Amble East, Amble West, Embleton, Harbottle and Elsdon, Hedgeley, Longframlington, Longhoughton with Craster and Rennington, Rothbury and South Rural, Shilbottle, Warkworth, Whittingham. Berwick-upon-Tweed Borough Council: Bamburgh, Beadnell, Belford, Cheviot, Edward, Elizabeth, Flodden, Ford, Islandshire, Lowick, Norhamshire, North Sunderland, Prior, Seton, Shielfield, Spittal, Wooler. Castle Morpeth Borough Council: Chevington, Ellington, Hartburn, Longhorsley, Lynemouth, Ulgham.
Blyth Valley BC	64,429	712		Ian Levy†		Susan Dungworth‡	Northumberland County Council: Cowpen, Cramlington East, Cramlington Eastfield with East Hartford, Cramlington North, Cramlington Parkside, Cramlington South East, Cramlington Village, Cramlington West, Croft, Hartley, Holywell, Isabella, Kitty Brewster, Newsham and New Delaval, Plessey, Seaton Delaval, Seghill, South Beach, South Newsham, Wensleydale.
Hexham CC	61,324	10,549		Guy Opperman†		Penny Grennan‡	Castle Morpeth Borough Council: Heddon-on-the-Wall, Ponteland East, Ponteland North, Ponteland South, Ponteland West, Stamfordham, Stannington. Northumberland County Council: Acomb, Allendale, Bellingham, Broomhaugh and Riding, Chollerton with Whittington, Corbridge, East Tynedale, Hadrian, Haltwhistle, Haydon, Hexham Gilesgate, Hexham Hencotes, Hexham Leazes, Hexham Priestpopple, Humshaugh and Wall, Ovingham, Prudhoe Castle, Prudhoe North, Prudhoe South, Prudhoe West, Redesdale, Sandhoe with Dilston, Slaley and Hexhamshire, South Tynedale, Stocksfield with Mickley, Upper North Tyne, Wanney, Warden and Newbrough, Wark, West Tynedale, Wylam.
Wansbeck CC	63,339	814		Ian Lavery‡		Jack Gebhard†	Castle Morpeth Borough Council: Hebron, Hepscott and Mitford, Morpeth Central, Morpeth Kirkhill, Morpeth North, Morpeth South, Morpeth Stobhill, Pegswood. Northumberland County Council: Bedlington Central, Bedlington East, Bedlington West, Bothal, Ashington, Central, Choppington, College, Guide Post, Haydon, Hirst, Newbiggin East, Newbiggin West, Park, Seaton, Sleekburn, Stakeford.

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

2019

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

Party	Votes	%	Change from 2017	Seats	Change from 2017
Conservative	82,849	48.8%	4.4%	3	1
Labour	57,567	33.9%	8.9%	1	1
Liberal Democrats	17,018	10.0%	0.7%	0	0
Brexit	6,535	3.9%	new	0	0
Greens	5,480	3.2%	1.1%	0	0
Others	178	0.2%	1.2%	0	0
Total	169,627	100.0		4

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 North East (region)