CONSTITUENCY RESULT : South Down
| Candidate name | Party | Gender | Number of votes | Share (%) | Change vs. 2017 for party (percentage points) | ||
| Chris Hazzard | Sinn Fein | Male | 16,137 | 32.4% | -7.5 | ||
| Michael Savage | Social Democratic and Labour Party | Male | 14,517 | 29.2% | -6.0 | ||
| Glyn Hanna | Democratic Unionist Party | Male | 7,619 | 15.3% | -2.1 | ||
| Patrick Brown | Alliance | Male | 6,916 | 13.9% | +10.3 | ||
| Jill Macauley | Ulster Unionist Party | Female | 3,307 | 6.6% | +2.7 | ||
| Paul Brady | Aontú | Male | 1,266 | 2.5% | 0.0 |
| Election statistics | ||
| Majority | ||
| Votes | 1,620 | |
| Percent | 3.3% | |
| Rank (1 = highest %) | 605 | |
| Turnout | ||
| Constituency | 62.9% | |
| Region | 61.8% | |
| UK | 67.3% | |
| Constituency in 2017 | 67.2% | |
| Size of electorate | 79,175 | |
| Valid votes cast | 49,762 |