Greater Manchester: New Constituency Boundaries 2018

Each new seat can be described as a combination of parts of old seats. These tables show this decomposition. The winner of the old seat at the 2015 election is shown by party colour, as is the implied winner of the new seat.

The implied results are calculated using the local election results for the wards which make up each old seat. This should give the most accurate projection, since it reflects varying political behaviour across the seat.

Greater Manchester Change Table

  Old SeatsNew SeatsChangeDisappearSwitch OutSwitch InFresh
Con54-10-201
Lab22220-2020
Lib0000000
Ukip0000000
Green0000000
Nat0000000
Min0000000
Total2726-1-2-221

The table shows how the various changes affect each party in this region. The total old and new seats are shown for each party, as well as their difference ('Change'). The change in seats is also explained through the four explanations:

The old seats which are disappearing are: Oldham East and Saddleworth; Stockport.

The old seats which are lost to another party are: Bolton West; Bury North.

The new seats which are gained from another party are: Bolton West; Bury.

The new seats which are freshly created are: Bramhall and Poynton.

Central Manchester

New seatPrimary componentSecondary component(s)
Altrincham and Tatton Park 78.2% of Altrincham and Sale West 26.2% of Tatton
9.7% of Stretford and Urmston
Blackley and Broughton Unchanged
Manchester Central 87.2% of Manchester Central
Manchester Gorton Unchanged
Manchester Withington Unchanged
Salford and Eccles Unchanged
Stretford and Urmston 90.3% of Stretford and Urmston 21.8% of Altrincham and Sale West
Worsley and Eccles South Unchanged
Wythenshawe and Sale East Unchanged

Eastern Manchester

New seatPrimary componentSecondary component(s)
Ashton under Lyne 49.8% of Stalybridge and Hyde 50.6% of Ashton under Lyne
14.2% of Denton and Reddish
Bramhall and Poynton 41.8% of Cheadle 33.8% of Hazel Grove
23.1% of Macclesfield
15.8% of Tatton
Failsworth and Droylsden 49.4% of Ashton under Lyne 32.1% of Oldham West and Royton
20.9% of Oldham East and Saddleworth
14.3% of Denton and Reddish
Littleborough and Saddleworth 50.1% of Rochdale 45.0% of Oldham East and Saddleworth
11.1% of Oldham West and Royton
Marple and Hyde 66.2% of Hazel Grove 50.2% of Stalybridge and Hyde
Oldham 56.8% of Oldham West and Royton 34.1% of Oldham East and Saddleworth
12.8% of Manchester Central
Rochdale 49.5% of Heywood and Middleton 49.9% of Rochdale
Stockport North and Denton 71.5% of Denton and Reddish 49.2% of Stockport
Stockport South and Cheadle 58.2% of Cheadle 50.8% of Stockport

Western Manchester

New seatPrimary componentSecondary component(s)
Bolton North East 87.4% of Bolton North East 27.1% of Bolton South East
Bolton West 100% of Bolton West 12.6% of Bolton North East
Bury 100% of Bury North 11.7% of Bury South
Farnworth 72.9% of Bolton South East 33.3% of Bury South
Leigh Unchanged
Makerfield Unchanged
Prestwich and Middleton 55.0% of Bury South 50.5% of Heywood and Middleton
Wigan Unchanged