CONSTITUENCY RESULT : South Northamptonshire
| Candidate name | Party | Gender | Number of votes | Share (%) | Change vs. 2017 for party (percentage points) | ||
| Andrea Leadsom | Conservative | Female | 41,755 | 62.4% | -0.1 | ||
| Gen Kitchen | Labour | Female | 13,994 | 20.9% | -6.4 | ||
| Chris Lofts | Liberal Democrat | Male | 7,891 | 11.8% | +6.2 | ||
| Denise Donaldson | Green | Female | 2,634 | 3.9% | +1.8 | ||
| Josh Phillips | Independent | Male | 463 | 0.7% | 0.0 | ||
| Stuart McCutcheon | Independent | Male | 171 | 0.3% | 0.0 |
| Election statistics | ||
| Majority | ||
| Votes | 27,761 | |
| Percent | 41.5% | |
| Rank (1 = highest %) | 105 | |
| Turnout | ||
| Constituency | 73.7% | |
| Region | 67.2% | |
| UK | 67.3% | |
| Constituency in 2017 | 75.8% | |
| Size of electorate | 90,842 | |
| Valid votes cast | 66,908 |