# Parliamentary constituencies in County Durham

The unitary authorities of Durham and Borough of Darlington are divided into 8 parliamentary constituencies, including 2 cross-county constituencies, all of which are county constituencies.

## Constituencies

† Conservative  ‡ Labour  ¤ Reform UK
| Constituency | Electorate | Majority | Member of Parliament | Nearest opposition | Electoral wards |
| Bishop Auckland CC | 70,745 | 6,672 | Sam Rushworth‡ | Jane MacBean† | Durham County Council: Barnard Castle East, Barnard Castle West, Bishop Auckland Town, Coundon, Crook, Evenwood, Shildon and Dene Valley, Tow Law, Weardale, West Auckland, Woodhouse Close. |
| Blaydon and Consett CC (part) | 70,487 | 11,153 | Liz Twist‡ | David Ayre¤ | Durham County Council: Benfieldside; Burnopfield and Dipton; Consett North; Consett South; Delves Lane; Leadgate and Medomsley. Metropolitan Borough of Gateshead: Blaydon; Chopwell and Rowlands Gill; Crawcrook and Greenside; Ryton, Crookhill and Stella; Winlaton and High Spen. |
| City of Durham CC | 70,582 | 11,757 | Mary Foy‡ | Mark Belch¤ | Durham County Council: Belmont, Brandon, Deerness, Durham South, Elvet and Gilesgate, Esh and Witton Gilbert, Framwellgate and Newton Hall, Neville's Cross, Sherburn, Willington and Hunwick. |
| Darlington CC | 70,763 | 2,298 | Lola McEvoy‡ | Peter Gibson† | Darlington Borough Council: Bank Top and Lascelles, Brinkburn and Faverdale, Cockerton, College, Eastbourne, Harrowgate Hill, Haughton and Springfield, Heighington and Coniscliffe, Hummersknott, Mowden, North Road, Northgate, Park East, Park West, Pierremont, Red Hall and Lingfield, Stephenson, Whinfield. |
| Easington CC | 69,411 | 6,542 | Grahame Morris‡ | Lynn Murphy¤ | Durham County Council: Blackhalls, Dawdon, Deneside, Easington, Horden, Murton, Passfield, Peterlee East, Peterlee West, Seaham, Shotton and South Hetton, Trimdon and Thornley (polling districts DKC, EEA, SNA, SNB and SNC), Wingate. |
| Newton Aycliffe and Spennymoor CC | 72,224 | 8,839 | Alan Strickland‡ | John Grant¤ | Durham County Council: Aycliffe East, Aycliffe North and Middridge, Aycliffe West, Bishop Middleham and Cornforth, Chilton, Coxhoe, Ferryhill, Sedgefield, Spennymoor, Trimdon and Thornley (polling districts SKB, SLA, SLB, SMB and SMC), Tudhoe. |
| North Durham CC | 73,235 | 5,873 | Luke Akehurst‡ | Andrew Husband¤ | Durham County Council: Annfield Plain, Chester-le-Street East, Chester-le-Street North, Chester-le-Street South, Chester-le-Street West Central, Craghead and South Moor, Lanchester, Lumley, North Lodge, Pelton, Sacriston, Stanley, Tanfield. |
| Stockton West CC (part) | 69,664 | 2,139 | Matt Vickers† | Joe Dancey‡ | Darlington Borough Council: Hurworth, Sadberge and Middleton St. George. Stockton-on-Tees Borough Council: Bishopsgarth and Elm Tree, Eaglescliffe, Fairfield, Grangefield, Hartburn, Ingleby Barwick East, Ingleby Barwick West, Village, Western Parishes, Yarm. |

## Boundary changes
### 2024

See 2023 Periodic Review of Westminster constituencies for further details.
| Former name | Boundaries 2010–2024 | Current name | Boundaries 2024–present |
| Bishop Auckland CC City of Durham CC Darlington BC Easington CC North Durham CC North West Durham CC Sedgefield CC | Parliamentary constituencies in Durham (2010–2024) | Bishop Auckland CC Blaydon and Consett CC City of Durham CC Darlington CC Easington CC Newton Aycliffe and Spennymoor CC North Durham CC Stockton West CC | Parliamentary constituencies in Durham (2024–present) |
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 the unitary authority of County Durham with the Tyne and Wear boroughs of Gateshead, South Tyneside and Sunderland as a sub-region of the North East Region, with the creation of a cross-county boundary constituency named Blaydon and Consett, resulting in the abolition of North West Durham. The reconfigured Sedgefield constituency was renamed Newton Aycliffe and Spennymoor. The Borough of Darlington was included in a Tees Valley sub-division.
The following seats resulted from the boundary review:
Containing electoral wards in Darlington
* Darlington
* Stockton West (part also in Stockton-on-Tees)
Containing electoral wards in County Durham
* Bishop Auckland
* Blaydon and Consett (part also in Gateshead in Tyne and Wear)
* City of Durham
* Easington
* Newton Aycliffe and Spennymoor
* North Durham

### 2010

Under the Fifth Periodic Review of Westminster constituencies, the Boundary Commission for England decided to retain Durham's constituencies for the 2010 election, making minor changes to realign constituency boundaries with the boundaries of current local government wards.
| Name | Boundaries 1997–2010 | Boundaries 2010–2024 |
| Bishop Auckland CC City of Durham CC Darlington BC Easington CC North Durham CC North West Durham CC Sedgefield CC | Parliamentary constituencies in Durham (1997–2010) | Parliamentary constituencies in Durham (2010–2024) |

## Results history

Primary data source: House of Commons research briefing – General election results from 1918 to 2019

### 2024

The number of votes cast for each political party who fielded candidates in constituencies comprising Durham in the 2024 general election were as follows:
| Party | Votes | % | Change from 2019 | Seats | Change from 2019 |
| Labour | 104,518 | 43.7% | 3.3% | 6 | 3 |
| Reform | 54,168 | 22.6% | 14.2% | 0 | 0 |
| Conservative | 48,348 | 20.2% | 20.4 | 0 | 4 |
| Liberal Democrats | 15,538 | 6.5% | 0.5% | 0 | 0 |
| Greens | 12,747 | 5.3% | 2.3% | 0 | 0 |
| Others | 3,848 | 1.6% | 0 | 0 | 0 |
| Total | 239,167 | 100.0 | | 6 | |

### 2019

The number of votes cast for each political party who fielded candidates in constituencies comprising Durham in the 2019 general election were as follows:
| Party | Votes | % | Change from 2017 | Seats | Change from 2017 |
| Conservative | 123,112 | 40.6% | 5.3% | 4 | 4 |
| Labour | 122,547 | 40.4% | 14.2% | 3 | 4 |
| Brexit | 25,444 | 8.4% | new | 0 | 0 |
| Liberal Democrats | 21,356 | 7.0% | 2.5% | 0 | 0 |
| Greens | 5,985 | 2.0% | 1.0% | 0 | 0 |
| Others | 4,725 | 1.6% | 3.0% | 0 | 0 |
| Total | 303,169 | 100.0 | | 7 | |

### Percentage votes

| Election year | 1983 | 1987 | 1992 | 1997 | 2001 | 2005 | 2010 | 2015 | 2017 | 2019 | 2024 |
| Labour | 45.5 | 52.0 | 57.1 | 68.5 | 62.7 | 56.3 | 45.3 | 48.5 | 54.6 | 40.4 | 43.7 |
| Reform UK$^1$ | – | – | – | – | – | – | – | – | – | 8.4 | 22.6 |
| Conservative | 30.4 | 28.3 | 28.4 | 17.6 | 20.6 | 16.6 | 21.4 | 25.4 | 35.3 | 40.6 | 20.2 |
| Liberal Democrat$^2$ | 23.9 | 19.7 | 14.2 | 9.7 | 14.2 | 21.3 | 24.1 | 6.0 | 4.5 | 7.0 | 6.5 |
| Green Party | – | * | * | * | * | * | – | 3.7 | 1.0 | 2.0 | 5.3 |
| UKIP | – | – | – | * | * | * | 3.1 | 15.7 | 3.4 | * | * |
| Other | 0.1 | – | 0.3 | 4.2 | 2.5 | 5.8 | 6.2 | 0.7 | 1.2 | 1.6 | 1.6 |
$^1$As the Brexit Party in 2019 $^2$1983 & 1987 – SDP–Liberal Alliance
* Included in Other

### Seats

| Election year | 1983 | 1987 | 1992 | 1997 | 2001 | 2005 | 2010 | 2015 | 2017 | 2019 | 2024 |
| Conservative | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 |
| Labour | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 3 | 6 |
| Total | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 6 |

### Maps
#### 1885–1910

* 1885
* 1886
* 1892
* 1895
* 1900
* 1906
* Jan 1910
* Dec 1910

#### 1918–1945

* 1918
* 1922
* 1923
* 1924
* 1929
* 1931
* 1935
* 1945

#### 1950–1979

* 1950
* 1951
* 1955
* 1959
* 1964
* 1966
* 1970
* Feb 1974
* Oct 1974
* 1979

#### 1983–2024

* 1983
* 1987
* 1992
* 1997
* 2001
* 2005
* 2010
* 2015
* 2017
* 2019

#### 2024–present (including constituencies partly in Cleveland and Tyne and Wear)

* 2024

## Historical results by party

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.

### 1885 to 1906

Conservative  Labour  Liberal  Liberal-Labour  Liberal Unionist
| Constituency | 1885 | 1886 | 88 | 90 | 91 | 1892 | 93 | 1895 | 98 | 1900 | 03 | 04 |
| Barnard Castle | J. Pease | J. Pease | J. Pease | J. Pease | J. Pease | J. Pease | J. Pease | J. Pease | J. Pease | J. Pease | Henderson | Henderson |
| Bishop Auckland | Paulton | Paulton | Paulton | Paulton | Paulton | Paulton | Paulton | Paulton | Paulton | Paulton | Paulton | Paulton |
| Chester-le-Street | Joicey | Joicey | Joicey | Joicey | Joicey | Joicey | Joicey | Joicey | Joicey | Joicey | Joicey | Joicey |
| Darlington | Fry | Fry | Fry | Fry | Fry | Fry | Fry | A. Pease | H. Pease | H. Pease | H. Pease | H. Pease |
| Durham | Milvain | Milvain | Milvain | Milvain | Milvain | Fowler | Fowler | Fowler | Elliot | Elliot | Elliot | Elliot |
| Durham Mid | Crawford | Crawford | Crawford | Wilson | Wilson | Wilson | Wilson | Wilson | Wilson | Wilson | Wilson | Wilson |
| Durham North West | Atherley-Jones | Atherley-Jones | Atherley-Jones | Atherley-Jones | Atherley-Jones | Atherley-Jones | Atherley-Jones | Atherley-Jones | Atherley-Jones | Atherley-Jones | Atherley-Jones | Atherley-Jones |
| Durham South East | Havelock-Allan | Havelock-Allan | Havelock-Allan | Havelock-Allan | Havelock-Allan | Richardson | Richardson | Havelock-Allan | Richardson | Lambton | Lambton | Lambton |
| Gateshead | James | James | James | James | James | James | Allan | Allan | Allan | Allan | Allan | Johnson |
| The Hartlepools | Richardson | Richardson | Richardson | Richardson | C. Furness | C. Furness | C. Furness | Richardson | Richardson | C. Furness | C. Furness | C. Furness |
| Houghton-le-Spring | Wilson | Wood | Wood | Wood | Wood | Fenwick | Fenwick | Cameron | Cameron | Cameron | Cameron | Cameron |
| Jarrow | C. Palmer | C. Palmer | C. Palmer | C. Palmer | C. Palmer | C. Palmer | C. Palmer | C. Palmer | C. Palmer | C. Palmer | C. Palmer | C. Palmer |
| South Shields | Stevenson | Stevenson | Stevenson | Stevenson | Stevenson | Stevenson | Stevenson | Robson | Robson | Robson | Robson | Robson |
| Stockton-on-Tees | Dodds | Dodds | Davey | Davey | Davey | Wrightson | Wrightson | Samuel | Samuel | Ropner | Ropner | Ropner |
| Sunderland | Gourley | Gourley | Gourley | Gourley | Gourley | Gourley | Gourley | Gourley | Gourley | Pemberton | Pemberton | Pemberton |
| Sunderland | Storey | Storey | Storey | Storey | Storey | Storey | Storey | Doxford | Doxford | Doxford | Doxford | Doxford |

### 1906 to 1918

Conservative  Independent Conservative  Independent Labour  Labour  Liberal  Liberal-Labour  Liberal Unionist
| Constituency | 1906 | 07 | Jan 10 | 10 | Dec 10 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
| Barnard Castle | Henderson | Henderson | Henderson | Henderson | Henderson | Henderson | Henderson | Henderson | Henderson | Henderson | Henderson | Henderson |
| Bishop Auckland | Paulton | Paulton | Havelock-Allan | Havelock-Allan | Havelock-Allan | Havelock-Allan | Havelock-Allan | Havelock-Allan | Havelock-Allan | Havelock-Allan | Havelock-Allan | Havelock-Allan |
| Chester-le-Street | Taylor | Taylor | → | → | → | → | → | → | → | → | → | → |
| Darlington | H. Pease | H. Pease | Lincoln | Lincoln | H. Pease | → | → | → | → | → | → | → |
| Durham | Hills | Hills | Hills | Hills | Hills | → | → | → | → | → | → | → |
| Durham Mid | Wilson | Wilson | Wilson | Wilson | Wilson | Wilson | Wilson | Wilson | Galbraith | Galbraith | Galbraith | Galbraith |
| Durham North West | Atherley-Jones | Atherley-Jones | Atherley-Jones | Atherley-Jones | Atherley-Jones | Atherley-Jones | Atherley-Jones | Williams | Williams | Williams | Williams | Williams |
| Durham South East | Lambton | Lambton | Hayward | Hayward | Hayward | Hayward | Hayward | Hayward | Hayward | Hayward | Hayward | Hayward |
| Gateshead | Johnson | Johnson | Elverston | Elverston | Elverston | Elverston | Elverston | Elverston | Elverston | Elverston | Elverston | Elverston |
| The Hartlepools | C. Furness | C. Furness | S. Furness$^1$ | S. Furness$^1$ | S. Furness$^1$ | S. Furness$^1$ | S. Furness$^1$ | Runciman | Runciman | Runciman | Runciman | Runciman |
| Houghton-le-Spring | Cameron | Cameron | Cameron | Cameron | Cameron | Cameron | Wing | Wing | Wing | Wing | Wing | Wing |
| Jarrow | C. Palmer | Curran | G. Palmer | G. Palmer | G. Palmer | G. Palmer | G. Palmer | G. Palmer | G. Palmer | G. Palmer | G. Palmer | G. Palmer |
| South Shields | Robson | Robson | Robson | Rea | Rea | Rea | Rea | Rea | Rea | Cochrane | Cochrane | Wilson |
| Stockton-on-Tees | Ropner | Ropner | Samuel | Samuel | Samuel | Samuel | Samuel | Samuel | Samuel | Samuel | Watson | Watson |
| Sunderland | Stuart | Stuart | Storey | Storey | Greenwood | Greenwood | Greenwood | Greenwood | Greenwood | Greenwood | Greenwood | Greenwood |
| Sunderland | Summerbell | Summerbell | Knott | Knott | Goldstone | Goldstone | Goldstone | Goldstone | Goldstone | Goldstone | Goldstone | Goldstone |
$^1$victor in January 1910, Christopher Furness, declared void. Fresh by-election held June 1910, won by Stephen Furness.

### 1918 to 1931

Coalition Liberal (1918–22) / National Liberal (1922–23)  Conservative  Labour  Liberal  National Labour
| Constituency | 1918 | 19 | 1922 | 23 | 1923 | 1924 | 26 | 29 | 1929 | 31 |
| Barnard Castle | Swan | Swan | Rogerson | Rogerson | Turner-Samuels | Headlam | Headlam | Headlam | Lawther | Lawther |
| Bishop Auckland | Spoor | Spoor | Spoor | Spoor | Spoor | Spoor | Spoor | F. Dalton | H. Dalton | H. Dalton |
| Blaydon | Waring | Waring | Whiteley | Whiteley | Whiteley | Whiteley | Whiteley | Whiteley | Whiteley | Whiteley |
| Chester-le-Street | Taylor | Lawson | Lawson | Lawson | Lawson | Lawson | Lawson | Lawson | Lawson | Lawson |
| Consett | Williams | Williams | Dunnico | Dunnico | Dunnico | Dunnico | Dunnico | Dunnico | Dunnico | Dunnico |
| Darlington | H. Pease | H. Pease | H. Pease | W. Pease | W. Pease | W. Pease | Shepherd | Shepherd | Shepherd | Shepherd |
| Durham | Hills | Hills | Ritson | Ritson | Ritson | Ritson | Ritson | Ritson | Ritson | Ritson |
| Gateshead | Surtees | Surtees | Brotherton | Brotherton | Dickie | Beckett | Beckett | Beckett | Melville | Evans |
| The Hartlepools | Gritten | Gritten | Jowitt | Jowitt | Jowitt | Sugden | Sugden | Sugden | Gritten | Gritten |
| Houghton-le-Spring | Richardson | Richardson | Richardson | Richardson | Richardson | Richardson | Richardson | Richardson | Richardson | Richardson |
| Jarrow | Palmer | Palmer | Wilson | Wilson | Wilson | Wilson | Wilson | Wilson | Wilson | Wilson |
| Seaham | Hayward | Hayward | Webb | Webb | Webb | Webb | Webb | Webb | MacDonald | → |
| Sedgefield | Burdon | Burdon | Herriotts | Herriotts | Ropner | Ropner | Ropner | Ropner | Herriotts | Herriotts |
| South Shields | Wilson | Wilson | Harney | Harney | Harney | Harney | Harney | Harney | Chuter Ede | Chuter Ede |
| Spennymoor | Galbraith | Galbraith | Batey | Batey | Batey | Batey | Batey | Batey | Batey | Batey |
| Stockton-on-Tees | Watson | Watson | Watson | Watson | Stewart | Macmillan | Macmillan | Macmillan | Riley | Riley |
| Sunderland | Greenwood | Greenwood | Thompson | Thompson | Thompson | Thompson | Thompson | Thompson | Smith | Thompson |
| Sunderland | Hudson | Hudson | Raine | Raine | Raine | Raine | Raine | Raine | Phillips | Phillips |

### 1931 to 1950

Conservative  Labour Independent Group (1949) / Independent Labour (1949–50)  Labour  Liberal  National Labour  National Liberal (1931–68)
| Constituency | 1931 | 1935 | 42 | 43 | 1945 | 47 | 49 |
| Barnard Castle | Headlam | Sexton | Sexton | Sexton | Lavers | Lavers | Lavers |
| Bishop Auckland | Curry | H. Dalton | H. Dalton | H. Dalton | H. Dalton | H. Dalton | H. Dalton |
| Blaydon | Martin | Whiteley | Whiteley | Whiteley | Whiteley | Whiteley | Whiteley |
| Chester-le-Street | Lawson | Lawson | Lawson | Lawson | Lawson | Lawson | Lawson |
| Consett | Dickie | Adams | Adams | Glanville | Glanville | Glanville | Glanville |
| Darlington | Peat | Peat | Peat | Peat | Hardman | Hardman | Hardman |
| Durham | McKeag | Ritson | Ritson | Ritson | Ritson | Ritson | Ritson |
| Gateshead | Magnay | Magnay | Magnay | Magnay | Zilliacus | Zilliacus | → |
| The Hartlepools | Gritten | Gritten | Gritten | Greenwell | Jones | Jones | Jones |
| Houghton-le-Spring | Chapman | Stewart | Stewart | Stewart | Blyton | Blyton | Blyton |
| Jarrow | Pearson | Wilkinson | Wilkinson | Wilkinson | Wilkinson | Fernyhough | Fernyhough |
| Seaham | MacDonald | Shinwell | Shinwell | Shinwell | Shinwell | Shinwell | Shinwell |
| Sedgefield | Jennings | Leslie | Leslie | Leslie | Leslie | Leslie | Leslie |
| South Shields | Johnstone | Chuter Ede | Chuter Ede | Chuter Ede | Chuter Ede | Chuter Ede | Chuter Ede |
| Spennymoor | Batey | Batey | Murray | Murray | Murray | Murray | Murray |
| Stockton-on-Tees | Macmillan | Macmillan | Macmillan | Macmillan | Chetwynd | Chetwynd | Chetwynd |
| Sunderland | Thompson | Furness | Furness | Furness | Ewart | Ewart | Ewart |
| Sunderland | Storey jr. | Storey jr. | Storey jr. | Storey jr. | Willey | Willey | Willey |

### 1950 to 1983

Conservative  Labour  Social Democratic
| Constituency | 1950 | 1951 | 53 | 1955 | 55 | 56 | 1959 | 62 | 1964 | 1966 | 1970 | 73 | Feb 74 | Oct 74 | 1979 | 1981 | 83 |
| Bishop Auckland | Dalton | Dalton | Dalton | Dalton | Dalton | Dalton | Boyden | Boyden | Boyden | Boyden | Boyden | Boyden | Boyden | Boyden | Foster | Foster | Foster |
| Blaydon | Whiteley | Whiteley | Whiteley | Whiteley | Whiteley | Woof | Woof | Woof | Woof | Woof | Woof | Woof | Woof | Woof | McWilliam | McWilliam | McWilliam |
| Chester-le-Street | Bartley | Bartley | Bartley | Bartley | Bartley | Pentland | Pentland | Pentland | Pentland | Pentland | Pentland | Radice | Radice | Radice | Radice | Radice | Radice |
| Consett | Glanville | Glanville | Glanville | Stones | Stones | Stones | Stones | Stones | Stones | Watkins | Watkins | Watkins | Watkins | Watkins | Watkins | Watkins | Watkins |
| Darlington | Hardman | Graham | Graham | Graham | Graham | Graham | Bourne-Arton | Bourne-Arton | Fletcher | Fletcher | Fletcher | Fletcher | Fletcher | Fletcher | Fletcher | Fletcher | O'Brien |
| Durham | Grey | Grey | Grey | Grey | Grey | Grey | Grey | Grey | Grey | Grey | Hughes | Hughes | Hughes | Hughes | Hughes | Hughes | Hughes |
| Durham North West | Murray | Murray | Murray | Ainsley | Ainsley | Ainsley | Ainsley | Ainsley | E. Armstrong | E. Armstrong | E. Armstrong | E. Armstrong | E. Armstrong | E. Armstrong | E. Armstrong | E. Armstrong | E. Armstrong |
| Easington | Shinwell | Shinwell | Shinwell | Shinwell | Shinwell | Shinwell | Shinwell | Shinwell | Shinwell | Shinwell | Dormand | Dormand | Dormand | Dormand | Dormand | Dormand | Dormand |
| Gateshead East | Moody | Moody | Moody | Moody | Moody | Moody | Moody | Moody | Conlan | Conlan | Conlan | Conlan | Conlan | Conlan | Conlan | Conlan | Conlan |
| Gateshead West | Hall | Hall | Hall | Hall | Randall | Randall | Randall | Randall | Randall | Randall | Horam | Horam | Horam | Horam | Horam | → | → |
| The Hartlepools | Jones | Jones | Jones | Jones | Jones | Jones | Kerans | Kerans | Leadbitter | Leadbitter | Leadbitter | Leadbitter | Leadbitter | Leadbitter | Leadbitter | Leadbitter | Leadbitter |
| Houghton-le-Spring | Blyton | Blyton | Blyton | Blyton | Blyton | Blyton | Blyton | Blyton | Urwin | Urwin | Urwin | Urwin | Urwin | Urwin | Urwin | Urwin | Urwin |
| Jarrow | Fernyhough | Fernyhough | Fernyhough | Fernyhough | Fernyhough | Fernyhough | Fernyhough | Fernyhough | Fernyhough | Fernyhough | Fernyhough | Fernyhough | Fernyhough | Fernyhough | Dixon | Dixon | Dixon |
| Stockton-on-Tees | Chetwynd | Chetwynd | Chetwynd | Chetwynd | Chetwynd | Chetwynd | Chetwynd | Rodgers | Rodgers | Rodgers | Rodgers | Rodgers | Rodgers | Rodgers | Rodgers | → | → |
| South Shields | Chuter Ede | Chuter Ede | Chuter Ede | Chuter Ede | Chuter Ede | Chuter Ede | Chuter Ede | Chuter Ede | Blenkinsop | Blenkinsop | Blenkinsop | Blenkinsop | Blenkinsop | Blenkinsop | Clark | Clark | Clark |
| Sunderland North | Willey | Willey | Willey | Willey | Willey | Willey | Willey | Willey | Willey | Willey | Willey | Willey | Willey | Willey | Willey | Willey | Willey |
| Sunderland South | Ewart | Ewart | Williams | Williams | Williams | Williams | Williams | Williams | Bagier | Bagier | Bagier | Bagier | Bagier | Bagier | Bagier | Bagier | Bagier |
| Sedgefield | Slater | Slater | Slater | Slater | Slater | Slater | Slater | Slater | Slater | Slater | Reed | Reed | | | | | |

### 1983 to 2024

Conservative  Labour
| Constituency | 1983 | 1987 | 1992 | 1997 | 2001 | 2005 | 07 | 2010 | 2015 | 2017 | 2019 |
| Bishop Auckland | Foster | Foster | Foster | Foster | Foster | Goodman | Goodman | Goodman | Goodman | Goodman | Davison |
| City of Durham | Hughes | Steinberg | Steinberg | Steinberg | Steinberg | Blackman-Woods | Blackman-Woods | Blackman-Woods | Blackman-Woods | Blackman-Woods | Foy |
| Darlington | Fallon | Fallon | Milburn | Milburn | Milburn | Milburn | Milburn | Chapman | Chapman | Chapman | Gibson |
| Easington | Dormand | Cummings | Cummings | Cummings | Cummings | Cummings | Cummings | Morris | Morris | Morris | Morris |
| North Durham | Radice | Radice | Radice | Radice | Jones | Jones | Jones | Jones | Jones | Jones | Jones |
| North West Durham$^1$ | E. Armstrong | H. Armstrong | H. Armstrong | H. Armstrong | H. Armstrong | H. Armstrong | H. Armstrong | Glass | Glass | Pidcock | Holden |
| Sedgefield | Blair | Blair | Blair | Blair | Blair | Blair | Wilson | Wilson | Wilson | Wilson | Howell |
$^1$abolished in 2024, with some areas going to the Blaydon and Consett seat which is mostly in Tyne and Wear

### 2024 to present

| Constituency | 2024 |
| Bishop Auckland | Rushworth |
| Darlington | McEvoy |
| City of Durham | Foy |
| Easington | Morris |
| Newton Aycliffe & Spennymoor | Strickland |
| North Durham | Akehurst |