Constituency
Swindon South
At a glance
The MP for Swindon South is Heidi Alexander (Labour), who has held the seat since 2024. At the 2024 general election the seat was a Lab gain from Con: she took 48.4% of the vote for a majority of 9,606, on a 61.7% turnout. The seat was first contested on its current boundaries at the 2024 general election, so there are no earlier results in our data.
2024 general election result
Majority 9,606 · Turnout 61.7% · Electorate 72,575
| Candidate | Party | Votes | Share |
|---|---|---|---|
| Heidi Alexander | Labour | 21,676 | 48.4% |
| Robert Buckland | Conservative | 12,070 | 26.9% |
| Catherine Kosidowski | Reform UK | 6,194 | 13.8% |
| Roderick Hebden | Green Party | 2,539 | 5.7% |
| Matthew McCabe | Liberal Democrat | 1,843 | 4.1% |
| Martin Costello | Independent | 472 | 1.1% |
Past election results
Every General Election and by-election in this seat, newest first. Open one for the full candidate list.
| Election | Winner | Result | Majority |
|---|---|---|---|
| 2024 | Heidi Alexander (Lab) | Lab gain from Con | 9,606 |
Source: 2024 general election result from the official Parliament constituency profile.