Middlesbrough (constituency)

First creation

Parliament created this seat under the Representation of the People Act 1867 for the general election the next year, however the population expanded so was split into east/west areas in 1918. From 1950 until 1974, given intervening expansion of suburbs across the country, the Metropolitan Borough of Thornaby closer to Stockton on Tees was included in the Middlesbrough West constituency. Thornaby was enveloped into Teesside County Borough from 1974 and has not been part of the associated seats otherwise.^[3]

Second creation – current

The seat was recreated on similar boundaries to those which existed immediately before 1918.

Results of the winning party

The 2015 result made the seat the 36-safest of Labour's 232 seats by percentage of majority.^[4]

Since the constituency's re-creation in 1974, Middlesbrough has elected the Labour Party's candidate as its MP.^{[n 3]} In areas formerly part of Middlesbrough East, the MPs elected have been Labour since 1935.^{[n 4]}

Middlesbrough West took in rural and semi-rural areas outside the borough to the west, and was a marginal seat passing three times between the two largest parties after the Second World War, but a Liberal stronghold from 1918 until 1945; former soldier and iron and steel merchant Trevelyan Thomson ran unopposed at the polls for re-election in 1924.

Opposition parties

The 2012 by-election and 2015 general election saw UKIP finish second.^[5] The Liberal Democrats fielded second-placed candidates in 2005 and 2010. The Conservatives did in all elections between the seat's revival and 2001, and returned to second place in 2017. The Green Party outpolled the Liberal Democrats in 2015 in a field of five parties' candidates standing — the two parties failed to achieve 5% of votes cast leading them to forfeit their deposits.

Turnout

Turnout has ranged between 70.1% in 1987 and 48.8% in 2005.

1868–1885: The township of Linthorpe, and so much of the townships of Middlesbrough, Ormesby, and Eston as lie to the north of the road leading from Eston towards Yarm.^[6]

1885–1918: The existing parliamentary borough, and so much of the municipal borough of Middlesbrough as was not already included in the parliamentary borough.^[7]

1974–1983: The County Borough of Teesside wards of Berwick Hills, Marton, North Ormesby, St Hilda's, Thorntree, and Tollesby.

1983–1997: The Borough of Middlesbrough wards of Acklam, Beckfield, Beechwood, Berwick Hills, Gresham, Grove Hill, Kirby, Linthorpe, North Ormesby, Pallister, Park, St Hilda's, Southfield, Thorntree, and Westbourne.

1997–2010: The Borough of Middlesbrough wards of Acklam, Ayresome, Beckfield, Beechwood, Berwick Hills, Brookfield, Gresham, Grove Hill, Kader, Kirby, Linthorpe, North Ormesby, Pallister, Park, St Hilda's, Southfield, Thorntree, and Westbourne.

2010–2024: The Borough of Middlesbrough wards of Acklam, Ayresome, Beckfield, Beechwood, Brookfield, Clairville, Gresham, Kader, Grove Hill, Linthorpe, Middlehaven, North Ormesby and Brambles Farm, Pallister Park, Thorntree, and University.

The boundaries of the constituency were loosely based on the pre-1968 County Borough of Middlesbrough boundaries; the exclusions are its Easterside and Park End Wards, instead in Middlesbrough South and East Cleveland.

2024: Constituency was abolished as a result of 2023 Periodic Review of Westminster constituencies.

The constituency was mostly the urban city itself, largely in the sunset of its once world-leading steelmaking output. It suffers high unemployment and its adult population has mostly a low income; however, with modern advanced engineering, design and tourism, the city forms with nearby Redcar a bellwether for the North East region's economy firmly in the British forefront of a determined return to increasing national output.^[8] In November 2012, male and female unemployment (based on the more up-to-date claimant statistics) placed Middlesbrough topmost of 29 constituencies in the region, well ahead for example the City of Durham at the bottom of the list, with just 3.4% claimants whereas this area had 9.4% claimants.^[9]

In terms of housing stock, the authority is one of few authorities to see the proportion of detached and semi-detached homes increase (to 13.6% and 39.9%), in this instance this was coupled with a similar rise in flats to 11.9%, all at a loss to the share of terraced properties, down 4.7%.^[10]

• List of parliamentary constituencies in Cleveland
• History of parliamentary constituencies and boundaries in Cleveland