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 | 38 | 39 | 1 | 0 | 0 | 0 | 1 |
| LAB | 8 | 8 | 0 | 0 | 0 | 0 | 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 | 46 | 47 | 1 | 0 | 0 | 0 | 1 |
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 new seats which are freshly created are: Melton and Syston.
| New seat | Primary component | Secondary component(s) |
|---|---|---|
| Amber Valley | 100% of Amber Valley | 0.1% of Derbyshire Mid |
| Bolsover | 99.7% of Bolsover | 0.5% of Derbyshire North East |
| Chesterfield | Unchanged | |
| Derby North | Unchanged | |
| Derby South | Unchanged | |
| Derbyshire Dales | 95.2% of Derbyshire Dales | 11.6% of Derbyshire South |
| Derbyshire Mid | 99.9% of Derbyshire Mid | 4.8% of Derbyshire Dales |
| Derbyshire North East | 99.5% of Derbyshire North East | 0.3% of Bolsover |
| Derbyshire South | 88.4% of Derbyshire South | |
| Erewash | Unchanged | |
| High Peak | Unchanged |
| New seat | Primary component | Secondary component(s) |
|---|---|---|
| Harborough, Oadby and Wigston | 92.4% of Harborough | 0.4% of Rutland and Melton |
| Hinckley and Bosworth | 87.1% of Bosworth | 5.3% of Leicestershire North West |
| Leicester East | 97.1% of Leicester East | |
| Leicester South | 89.2% of Leicester South | 2.9% of Leicester East |
| Leicester West | 100% of Leicester West | 10.8% of Leicester South |
| Leicestershire Mid | 67.4% of Charnwood | 14.2% of Leicestershire South
12.9% of Bosworth
|
| Leicestershire North West | 94.7% of Leicestershire North West | |
| Leicestershire South | 85.8% of Leicestershire South | 7.6% of Harborough |
| Loughborough | 92.3% of Loughborough | |
| Melton and Syston | 48.6% of Rutland and Melton | 32.6% of Charnwood
7.7% of Loughborough
|
| Rutland and Stamford | 51.0% of Rutland and Melton | 36.3% of Grantham and Stamford |
| New seat | Primary component | Secondary component(s) |
|---|---|---|
| Boston and Skegness | 99.4% of Boston and Skegness | 7.6% of Louth and Horncastle |
| Gainsborough | 97.3% of Gainsborough | |
| Grantham and Bourne | 63.7% of Grantham and Stamford | 21.3% of Sleaford and North Hykeham |
| Lincoln | Unchanged | |
| Louth and Horncastle | 92.4% of Louth and Horncastle | 2.7% of Gainsborough
0.6% of Boston and Skegness
|
| Sleaford and North Hykeham | 78.7% of Sleaford and North Hykeham | |
| South Holland and The Deepings | Unchanged |
| New seat | Primary component | Secondary component(s) |
|---|---|---|
| Corby and East Northamptonshire | 89.3% of Corby | |
| Daventry | 90.4% of Daventry | 5.4% of Wellingborough
1.9% of Northamptonshire South
|
| Kettering | 100% of Kettering | 3.9% of Corby |
| Northampton North | 97.0% of Northampton North | 29.4% of Northampton South |
| Northampton South | 70.6% of Northampton South | 28.0% of Northamptonshire South
3.0% of Northampton North
|
| Northamptonshire South | 70.1% of Northamptonshire South | 9.6% of Daventry
6.2% of Wellingborough
|
| Wellingborough and Rushden | 88.4% of Wellingborough | 6.8% of Corby |
| New seat | Primary component | Secondary component(s) |
|---|---|---|
| Ashfield | 85.5% of Ashfield | 3.5% of Mansfield |
| Bassetlaw | 95.7% of Bassetlaw | |
| Broxtowe | 82.4% of Broxtowe | 14.5% of Ashfield |
| Gedling | 100% of Gedling | 6.3% of Sherwood |
| Mansfield | 96.5% of Mansfield | |
| Newark | 93.8% of Newark | 4.3% of Bassetlaw
1.5% of Rushcliffe
1.2% of Sherwood
|
| Nottingham East | 100% of Nottingham East | 11.3% of Nottingham South
0.0% of Nottingham North
|
| Nottingham North and Kimberley | 82.1% of Nottingham North | 17.6% of Broxtowe
8.2% of Nottingham South
|
| Nottingham South | 80.5% of Nottingham South | 17.8% of Nottingham North |
| Rushcliffe | 98.5% of Rushcliffe | |
| Sherwood Forest | 92.4% of Sherwood | 6.2% of Newark |