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 2019 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.
| Party | Old Seats | New Seats | Change | Disappear | Switch Out | Switch In | Fresh |
|---|---|---|---|---|---|---|---|
| CON | 44 | 41 | -3 | -5 | -2 | 4 | 0 |
| LAB | 15 | 12 | -3 | -1 | -4 | 2 | 0 |
| LIB | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Brexit | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Green | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| MIN | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Total | 59 | 53 | -6 | -6 | -6 | 6 | 0 |
The table shows how the various changes affect each party in this area. 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: Birmingham Perry Barr; Dudley North; Herefordshire North; Kenilworth and Southam; Stone; Walsall North.
The old seats which are lost to another party are: Coventry South; Walsall South; Warwick and Leamington; West Bromwich East; West Bromwich West; Wolverhampton South East.
The new seats which are gained from another party are: Coventry South and Kenilworth; Walsall and Oscott; Warwick and Leamington; West Bromwich; Darlaston and Tipton; Wolverhampton South and Coseley.
| New seat | Primary component | Secondary component(s) |
|---|---|---|
| Birmingham Edgbaston and Selly Oak | 100% of Birmingham Edgbaston | 20.5% of Birmingham Selly Oak |
| Birmingham Erdington and Perry Barr | 100% of Birmingham Erdington | 22.7% of Birmingham Perry Barr |
| Birmingham Hall Green | 76.2% of Birmingham Hall Green | 26.2% of Birmingham Yardley |
| Birmingham Hodge Hill | 73.9% of Birmingham Hodge Hill | 24.4% of Birmingham Yardley |
| Birmingham Kings Heath | 79.5% of Birmingham Selly Oak | 23.8% of Birmingham Hall Green |
| Birmingham Ladywood | 73.0% of Birmingham Ladywood | 25.9% of Birmingham Perry Barr
14.2% of Warley
|
| Birmingham Northfield | 100% of Birmingham Northfield | 7.0% of Bromsgrove |
| Birmingham Yardley | 49.4% of Birmingham Yardley | 26.1% of Birmingham Hodge Hill
27.0% of Birmingham Ladywood
|
| Sutton Coldfield | Unchanged |
| New seat | Primary component | Secondary component(s) |
|---|---|---|
| Aldridge, Brownhills and Bloxwich | 100% of Aldridge-Brownhills | 28.4% of Walsall North |
| Darlaston and Tipton | 71.8% of West Bromwich West | 42.1% of Walsall South
6.2% of West Bromwich East
|
| Dudley | 72.8% of Dudley South | 51.4% of Dudley North |
| Halesowen and Rowley Regis | 100% of Halesowen and Rowley Regis | 17.2% of Dudley South |
| Stourbridge | 100% of Stourbridge | 10.0% of Dudley South |
| Walsall and Oscott | 57.9% of Walsall South | 27.3% of Walsall North
25.8% of Birmingham Perry Barr
|
| Warley | 81.3% of Warley | 28.2% of West Bromwich West
16.0% of Dudley North
|
| West Bromwich | 93.8% of West Bromwich East | 25.6% of Birmingham Perry Barr
4.5% of Warley
|
| Wolverhampton East and Willenhall | 70.7% of Wolverhampton North East | 44.3% of Walsall North
10.9% of Wolverhampton South West
|
| Wolverhampton South and Coseley | 87.2% of Wolverhampton South East | 32.6% of Dudley North |
| Wolverhampton West | 89.1% of Wolverhampton South West | 29.3% of Wolverhampton North East
12.8% of Wolverhampton South East
|
| New seat | Primary component | Secondary component(s) |
|---|---|---|
| Coventry East | 85.6% of Coventry North East | 17.2% of Coventry South |
| Coventry North West | 81.4% of Coventry North West | 14.4% of Coventry North East
14.5% of Coventry South
|
| Coventry South and Kenilworth | 68.2% of Coventry South | 29.1% of Kenilworth and Southam
18.6% of Coventry North West
|
| Meriden | 87.6% of Meriden | 12.3% of Solihull |
| Solihull | 87.7% of Solihull | 12.4% of Meriden |
| New seat | Primary component | Secondary component(s) |
|---|---|---|
| Bromsgrove and Droitwich | 67.7% of Bromsgrove | 38.7% of Worcestershire Mid |
| Evesham | 58.0% of Worcestershire Mid | 34.8% of Worcestershire West
7.1% of Redditch
|
| Hereford and South Herefordshire | 100% of Hereford and South Herefordshire | 13.9% of Herefordshire North |
| Malvern and Ledbury | 65.2% of Worcestershire West | 38.8% of Herefordshire North |
| Redditch | 92.9% of Redditch | 25.3% of Bromsgrove |
| Worcester | 100% of Worcester | 3.2% of Worcestershire Mid |
| Wyre Forest | Unchanged |
| New seat | Primary component | Secondary component(s) |
|---|---|---|
| Bridgnorth and The Wrekin | 81.7% of Wrekin, The | 31.3% of Ludlow |
| Ludlow and Leominster | 65.2% of Ludlow | 47.4% of Herefordshire North |
| Shrewsbury | 100% of Shrewsbury and Atcham | 3.5% of Ludlow |
| Shropshire North | Unchanged | |
| Telford | 100% of Telford | 18.3% of Wrekin, The |
| New seat | Primary component | Secondary component(s) |
|---|---|---|
| Burton | Unchanged | |
| Cannock Chase | Unchanged | |
| Lichfield | 96.1% of Lichfield | 7.4% of Stafford
0.4% of Tamworth
|
| Newcastle-under-Lyme | 100% of Newcastle-under-Lyme | 13.1% of Stone |
| Stafford | 92.6% of Stafford | 22.9% of Stone |
| Staffordshire Moorlands | 95.7% of Staffordshire Moorlands | 28.0% of Stone |
| Staffordshire South | Unchanged | |
| Stoke-on-Trent Central | 92.5% of Stoke-on-Trent Central | 25.2% of Stoke-on-Trent South
1.9% of Stoke-on-Trent North
|
| Stoke-on-Trent North and Kidsgrove | 98.1% of Stoke-on-Trent North | 7.5% of Stoke-on-Trent Central
4.3% of Staffordshire Moorlands
|
| Stoke-on-Trent South and Stone | 74.8% of Stoke-on-Trent South | 36.0% of Stone
0.0% of Stoke-on-Trent Central
|
| Tamworth | 99.6% of Tamworth | 3.9% of Lichfield |
| New seat | Primary component | Secondary component(s) |
|---|---|---|
| Nuneaton | 89.5% of Nuneaton | 25.5% of Rugby |
| Rugby and Southam | 74.5% of Rugby | 40.6% of Kenilworth and Southam |
| Stratford-on-Avon | 100% of Stratford-on-Avon | 14.6% of Kenilworth and Southam |
| Warwick and Leamington | 100% of Warwick and Leamington | 15.8% of Kenilworth and Southam |
| Warwickshire North | 100% of Warwickshire North | 10.5% of Nuneaton |