Iain Duncan Smith Elections won
Parliament Member page for Iain Duncan Smith
Elections listed as contested and won are those forming part of any general election or by-election contested since since the 2010 general election. A person may have contested an election outside of this grouping.
| Election | Constituency | Election type | Party | Vote count | Vote share | Majority |
| 12 December 2019 | Chingford and Woodford Green | General election | Con | 23,481 | 48.5% | 1,262 |
| 8 June 2017 | Chingford and Woodford Green | General election | Con | 23,076 | 49.1% | 2,438 |
| 7 May 2015 | Chingford and Woodford Green | General election | Con | 20,999 | 47.9% | 8,386 |
| 6 May 2010 | Chingford and Woodford Green | General election | Con | 22,743 | 52.8% | 12,963 |