contained the new town of Newton Aycliffe) from the abolished constituency of Sedgefield. 1983–1997 The District of Wear Valley wards of Bishop Auckland Town, Cockton Hill, Coundon, Coundon Grange, Escomb, Henknowle, St Helen's, West Auckland, and Woodhouse Close; the District of Teesdale; and the District of Sedgefield wards of Byerley, Middridge, Neville, Shafto, Simpasture, Sunnydale, Thickley, West, and Woodham. Rural areas around Darlington returned to the re-established Sedgefield constituency. 1997-present The District of Wear Valley wards of Bishop Auckland Town, Cockton Hill, Coundon, Coundon Grange, Escomb, Henknowle, St Helen's, West Auckland, and Woodhouse Close; the District of Teesdale; and the District of Sedgefield wards of Byerley, Low Spennymoor and Tudhoe Grange, Middlestone, Spennymoor, Sunnydale, Thickley, and Tudhoe. Gained Spennymoor from Sedgefield in exchange for Newton Aycliffe. 2007 Boundary review Following a review of parliamentary representation in County Durham in 2007, the Boundary Commission for England made no changes to the Bishop Auckland constituency. In the 2009 structural changes to local government in England, the local authority districts in Durham were abolished and replaced with a single unitary authority; however, this has not affected the boundaries of the constituency. Members of Parliament Elections History of modern results From 1935 to 2017 inclusive, the seat's voters returned MPs from the Labour Party; the former Labour Chancellor of the Exchequer Hugh Dalton, was the MP for Bishop Auckland from 1929 to 1931, and after regaining the seat in 1935, remained an MP until 1959. The 2019 result returned a Conservative; the party's results had shown an increase from election to election from 1997 onwards. Elections in the 2010s Elections in the 2000s Elections in the 1990s Elections in the 1980s Elections in the 1970s Elections in the 1960s Elections in the 1950s Elections in the 1940s Elections in the 1930s Elections in the 1920s Elections in the 1910s Election results 1885–1918 Elections in the 1880s Elections in the 1890s Elections in the 1900s Elections in the 1910s General Election 1914–15: Another General Election was required to take place before the end of 1915. The political parties had been making preparations for an election to take place and by July 1914, the following candidates had been selected; Liberal: Vickerman Rutherford Unionist: Richard George Tyndall Bright Labour: Ben Spoor See also List of parliamentary constituencies in County Durham History of parliamentary constituencies and boundaries in Durham Bishop Auckland by-election, 1929 Notes References Sources Parliamentary constituencies