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.
The main change is that South Yorkshire loses one (Labour) seat. The disappearing old seat, which most fragments, is Barnsley West and Penistone.
| New seat | Primary component | Secondary component | ||
| Beverley and Holderness | 98.1% of Beverley and Holderness | 1.1% of Haltemprice and Howden
0.9% of Yorkshire East | ||
| Brigg and Goole | 96.9% of Brigg and Goole | |||
| Cleethorpes | Unchanged | |||
| Great Grimsby | Unchanged | |||
| Haltemprice and Howden | 98.9% of Haltemprice and Howden | 0.5% of Beverley and Holderness | ||
| Hull East | 98.4% of Hull East | 5.7% of Hull North | ||
| Hull North | 94.3% of Hull North | 1.6% of Hull East
0.4% of Hull West and Hessle | ||
| Hull West and Hessle | 99.6% of Hull West and Hessle | |||
| Scunthorpe | 100% of Scunthorpe | 3.1% of Brigg and Goole | ||
| Yorkshire East | 99.1% of Yorkshire East | 1.4% of Beverley and Holderness |
| New seat | Primary component | Secondary component | ||
| Boston and Skegness | 100% of Boston and Skegness | 2.8% of Louth and Horncastle | ||
| Gainsborough | 97.5% of Gainsborough | |||
| Grantham and Stamford | 94.7% of Grantham and Stamford | 3.3% of South Holland and The Deepings | ||
| Lincoln | 99.6% of Lincoln | 6.1% of Sleaford and North Hykeham | ||
| Louth and Horncastle | 97.2% of Louth and Horncastle | 2.5% of Gainsborough | ||
| Sleaford and North Hykeham | 93.9% of Sleaford and North Hykeham | 5.3% of Grantham and Stamford
0.4% of Lincoln | ||
| South Holland and The Deepings | 96.7% of South Holland and The Deepings |
| New seat | Primary component | Secondary component | ||
| Barnsley Central | 72.8% of Barnsley Central | 30.7% of Barnsley West and Penistone | ||
| Barnsley East | 42.2% of Barnsley East and Mexborough | 35.0% of Barnsley West and Penistone
23.3% of Barnsley Central | ||
| Don Valley | 94.2% of Don Valley | 14.2% of Doncaster North | ||
| Doncaster Central | 100% of Doncaster Central | 11.1% of Doncaster North | ||
| Doncaster North | 74.7% of Doncaster North | 32.4% of Barnsley East and Mexborough
5.8% of Don Valley | ||
| Penistone and Stocksbridge | 53.0% of Sheffield Hillsborough | 34.3% of Barnsley West and Penistone
5.7% of Sheffield Brightside 3.9% of Barnsley Central | ||
| Rother Valley | 87.8% of Rother Valley | 9.9% of Rotherham
8.3% of Wentworth | ||
| Rotherham | 90.1% of Rotherham | 12.2% of Rother Valley
7.2% of Wentworth | ||
| Sheffield Brightside and Hillsborough | 93.4% of Sheffield Brightside | 14.5% of Sheffield Hillsborough
13.9% of Sheffield Central | ||
| Sheffield Central | 72.9% of Sheffield Central | 13.7% of Sheffield Hallam
12.5% of Sheffield Hillsborough 0.9% of Sheffield Brightside 0.1% of Sheffield Heeley | ||
| Sheffield Hallam | 81.8% of Sheffield Hallam | 20.1% of Sheffield Hillsborough
7.5% of Sheffield Central 0.2% of Sheffield Heeley | ||
| Sheffield Heeley | 99.7% of Sheffield Heeley | 5.5% of Sheffield Attercliffe
4.5% of Sheffield Hallam 0.2% of Sheffield Central | ||
| Sheffield South East | 94.5% of Sheffield Attercliffe | 5.5% of Sheffield Central | ||
| Wentworth and Dearne | 84.6% of Wentworth | 25.4% of Barnsley East and Mexborough |