Iain Duncan Smith Elections won
Parliament Member page for Iain Duncan Smith
Elections listed as contested and won are those forming part of the general elections in 2010, 2015, 2017, 2019 or 2024 and any by-election contested during the 56th, 57th, 58th and 59th Parliaments. A person may have contested and won an election outside this grouping.
| Election | Constituency | Election type | Party | Vote count | Vote share | Majority |
| 4 July 2024 | Chingford and Woodford Green | General election | Con | 17,281 | 35.6% | 4,757 |
| 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 |