Each new seat can be described as a combination of parts of old seats. These table show this decomposition. The winner of the old seat at the 2010 election is shown by party colour, as is the implied winner of the new seat.
<The implied results are now calculated using the local election results for the wards which make up each old seat. This should be more accurate than the earlier implied results which assumed each constituency was homogeneous.
| New seat | Primary component | Secondary component(s) |
|---|---|---|
| Chester | 79.3% of Chester, City of | 36.8% of Ellesmere Port and Neston
2.3% of Eddisbury
|
| Congleton | Unchanged | |
| Crewe and Nantwich | Unchanged | |
| Eddisbury | 90.9% of Eddisbury | 20.7% of Chester, City of |
| Macclesfield | 81.3% of Macclesfield | 31.3% of Tatton |
| Mersey Banks and Weaver | 45.8% of Ellesmere Port and Neston | 38.6% of Wirral South
31.8% of Weaver Vale
6.6% of Halton
|
| Tatton | 68.7% of Tatton | 39.6% of Weaver Vale
6.8% of Eddisbury
2.7% of Macclesfield
|
| Warrington North | 100% of Warrington North | 9.9% of Warrington South |
| Warrington South | 90.1% of Warrington South | 7.4% of Halton |
| Widnes and Runcorn | 86.0% of Halton | 28.6% of Weaver Vale |
| New seat | Primary component | Secondary component(s) |
|---|---|---|
| Bromsgrove and Droitwich | 79.8% of Bromsgrove | 27.9% of Worcestershire Mid |
| Evesham | 72.1% of Worcestershire Mid | 30.1% of Worcestershire West
6.9% of Redditch
|
| Hereford and South Herefordshire | 100% of Hereford and South Herefordshire | 3.8% of Herefordshire North |
| Malvern and Ledbury | 69.9% of Worcestershire West | 40.2% of Herefordshire North |
| Redditch | 93.1% of Redditch | 20.2% of Bromsgrove |
| Worcester | Unchanged | |
| Wyre Forest | Unchanged |
| New seat | Primary component | Secondary component(s) |
|---|---|---|
| Bridgnorth, Wellington and The Wrekin | 81.5% of Wrekin, the | 36.2% of Ludlow |
| Ludlow and Leominster | 63.8% of Ludlow | 56.0% of Herefordshire North |
| Shrewsbury | 100% of Shrewsbury and Atcham | |
| Shropshire North | Unchanged | |
| Telford | 100% of Telford | 18.5% of Wrekin, the |
| New seat | Primary component | Secondary component(s) |
|---|---|---|
| Burton | Unchanged | |
| Cannock Chase | Unchanged | |
| Lichfield | 96.1% of Lichfield | 7.4% of Stafford |
| Newcastle-under-Lyme | 88.7% of Newcastle-under-Lyme | 22.4% of Stoke-on-Trent North
4.5% of Staffordshire Moorlands
|
| Stafford | 87.8% of Stafford | 23.0% of Stone |
| Staffordshire Moorlands | 95.5% of Staffordshire Moorlands | 27.5% of Stone |
| Staffordshire South | 100% of Staffordshire South | 4.8% of Stafford |
| Staffordshire West | 56.1% of Stoke-on-Trent South | 49.5% of Stone
11.3% of Newcastle-under-Lyme
|
| Stoke-on-Trent North | 77.6% of Stoke-on-Trent North | 29.0% of Stoke-on-Trent Central |
| Stoke-on-Trent South | 71.0% of Stoke-on-Trent Central | 43.9% of Stoke-on-Trent South |
| Tamworth | 100% of Tamworth | 3.9% of Lichfield |