A general election to the 57th Parliament of the United Kingdom with an electorate of 46,836,533, having 32,204,184 valid votes and 74,188 invalid votes.
Read the House of Commons Library briefing.
By area - By majority - By vote share of winning candidate - By turnout - By declaration time - By party - Non-party candidates
| Ranking | Constituency | Winning candidate | Winning party | Valid vote count | Electorate | Turnout (valid vote count / electorate) |
| 1 | Fermanagh and South Tyrone | GILDERNEW, Michelle | SF | 53,481 | 70,601 | 75.8% |
| 2 | Newry and Armagh | BRADY, Mickey | SF | 53,579 | 78,266 | 68.5% |
| 3 | Mid Ulster | MOLLOY, Francie | SF | 46,694 | 68,485 | 68.2% |
| 4 | West Tyrone | MCELDUFF, Barry | SF | 43,486 | 64,009 | 67.9% |
| 5 | Belfast East | ROBINSON, Gavin | DUP | 42,890 | 63,495 | 67.5% |
| 6 | Belfast North | DODDS, Nigel | DUP | 45,936 | 68,249 | 67.3% |
| 7 | South Down | HAZZARD, Chris | SF | 50,893 | 75,685 | 67.2% |
| 8 | Belfast South | LITTLE PENGELLY, Emma | DUP | 43,705 | 66,105 | 66.1% |
| 9 | Foyle | MCCALLION, Elisha | SF | 45,965 | 70,324 | 65.4% |
| 10 | Belfast West | MASKEY, Paul | SF | 40,633 | 62,423 | 65.1% |
| 11 | North Antrim | PAISLEY, Ian | DUP | 48,460 | 75,657 | 64.1% |
| 12 | Upper Bann | SIMPSON, David | DUP | 51,258 | 80,168 | 63.9% |
| 13 | South Antrim | GIRVAN, Paul | DUP | 43,170 | 68,244 | 63.3% |
| 14 | Lagan Valley | DONALDSON, Jeffrey M. | DUP | 44,926 | 72,380 | 62.1% |
| 15 | East Londonderry | CAMPBELL, Gregory | DUP | 41,030 | 67,038 | 61.2% |
| 16 | North Down | HERMON, Sylvia | Ind | 39,185 | 64,334 | 60.9% |
| 17 | East Antrim | WILSON, Sammy | DUP | 38,143 | 62,908 | 60.6% |
| 18 | Strangford | SHANNON, Jim | DUP | 38,749 | 64,327 | 60.2% |