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Illinois's 12th Congressional District
Presidential Election Results: –
IL-12 (Illinois) voted R+43.5 for Donald Trump in 2024, with Trump receiving 264,569 votes (70.99%). This represented a R+0.7% swing toward Republicans compared to 2020.
Interactive map with district profile in split-screen view
Top reported ancestry groups (compared to national average).
IL-12 • 2008–2024
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2024 | 27.5%(102,544) | 71.0%(264,569) | R+43.5 | R+0.7% |
| 2020 | 27.7%(106,204) | 70.5%(270,198) | R+42.8 | R+0.2% |
| 2016 | 26.0%(95,310) | 68.5%(251,552) | R+42.6 | R+16.2% |
| 2012 | 36.8%(125,178) | 63.2%(214,703) | R+26.3 | R+16.3% |
| 2008 | 43.7%(161,070) | 53.7%(198,053) | R+10.0 | 0% |
| Year | Winner | Democrat | Republican | Other | Margin | Swing |
|---|---|---|---|---|---|---|
| 2024 | Mike BostInc | 25.8%(94,875) | 74.2%(272,754) | — | R+48.4 | 0.0 |
| 2022 | Mike BostInc | 25.0%(72,791) | 75.0%(218,379) | — | R+50.0 | 0.0 |
Source: Official state election returns via FEC and state Secretaries of State