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.
In Bristol a new seat is created (Filton and Bradley Stoke) which is expected to be Conservative. A new seat is created in Wiltshire (Chippenham) which should be Lib Dem.
| New seat | Primary component | Secondary component | ||
| Bath | 90.1% of Bath | |||
| Bristol East | 72.7% of Bristol East | 20.5% of Kingswood | ||
| Bristol North West | 55.2% of Bristol North West | 33.9% of Bristol West | ||
| Bristol South | 100% of Bristol South | 3.7% of Bristol East | ||
| Bristol West | 66.1% of Bristol West | 23.5% of Bristol East | ||
| Filton and Bradley Stoke | 44.8% of Bristol North West | 21.1% of Northavon
16.8% of Kingswood | ||
| Kingswood | 62.8% of Kingswood | 17.0% of Wansdyke | ||
| Somerset North | 100% of Woodspring | 0.2% of Weston-Super-Mare | ||
| Somerset North East | 83.0% of Wansdyke | 9.9% of Bath | ||
| Thornbury and Yate | 78.9% of Northavon | |||
| Weston-Super-Mare | 99.8% of Weston-Super-Mare |
| New seat | Primary component | Secondary component | ||
| Cheltenham | 97.3% of Cheltenham | 9.5% of Tewkesbury | ||
| Cotswolds, The | 100% of Cotswold | 5.1% of Stroud | ||
| Forest of Dean | Unchanged | |||
| Gloucester | 91.2% of Gloucester | |||
| Stroud | 94.9% of Stroud | |||
| Tewkesbury | 90.5% of Tewkesbury | 8.8% of Gloucester
2.7% of Cheltenham |
| New seat | Primary component | Secondary component | ||
| Banbury | 95.6% of Banbury | |||
| Henley | 100% of Henley | 4.4% of Banbury
0.4% of Witney 0.0% of Oxford West and Abingdon | ||
| Oxford East | 100% of Oxford East | 8.9% of Oxford West and Abingdon | ||
| Oxford West and Abingdon | 90.1% of Oxford West and Abingdon | 3.4% of Witney
1.0% of Wantage | ||
| Wantage | 99.0% of Wantage | 1.1% of Oxford West and Abingdon | ||
| Witney | 96.2% of Witney |
| New seat | Primary component | Secondary component | ||
| Chippenham | 42.4% of Wiltshire North | 24.0% of Westbury
17.1% of Devizes | ||
| Devizes | 66.9% of Devizes | 9.3% of Salisbury | ||
| Salisbury | 82.1% of Salisbury | |||
| Swindon North | 94.7% of Swindon North | 1.6% of Swindon South | ||
| Swindon South | 98.4% of Swindon South | |||
| Wiltshire North | 57.6% of Wiltshire North | 15.9% of Devizes
5.3% of Swindon North | ||
| Wiltshire South West | 76.0% of Westbury | 8.6% of Salisbury |