Presidential elections · 2000–2024
Grundy County, IL — Presidential Election Results (2000–2024)
In 2024, Grundy County, Illinois voted for Donald J. Trump (Republican) by R+29.5 — 9,143 Democratic to 16,997 Republican of 26,589 votes cast. From 2020 to 2024 it shifted 3.7 points toward Republicans. That makes it 40.4 points more Republican than Illinois overall (D+10.9).
Data: MIT Election Data & Science Lab, Harvard Dataverse.
Margin by election, 2000–2024
Democratic minus Republican, in points of all votes cast — blue bars Democratic, red Republican.
Every election in Grundy County
| Year | Democratic | Republican | Other | Dem share | Rep share | Margin |
|---|---|---|---|---|---|---|
| 2024 | 9,143 | 16,997 | 449 | 34.4% | 63.9% | R+29.5 |
| 2020 | 9,626 | 16,523 | 542 | 36.1% | 61.9% | R+25.8 |
| 2016 | 8,065 | 13,454 | 1,718 | 34.7% | 57.9% | R+23.2 |
| 2012 | 9,451 | 11,343 | 450 | 44.5% | 53.4% | R+8.9 |
| 2008 | 11,063 | 10,687 | 421 | 49.9% | 48.2% | D+1.7 |
| 2004 | 8,463 | 11,198 | 170 | 42.7% | 56.5% | R+13.8 |
| 2000 | 7,516 | 8,709 | 359 | 45.3% | 52.5% | R+7.2 |
Grundy County presidential elections — FAQ
Who carried Grundy County in the 2024 presidential election?+
Donald J. Trump (Republican) carried Grundy County, Illinois in 2024 by R+29.5, with 26,589 votes cast. Data: MIT Election Data & Science Lab.
How did Grundy County shift between 2020 and 2024?+
Grundy County shifted 3.7 points toward Republicans between 2020 (R+25.8) and 2024 (R+29.5).
Is Grundy County more Democratic or Republican than Illinois overall?+
In 2024, Grundy County went R+29.5 while Illinois overall went D+10.9 — 40.4 points more Republican than the state.
Where does this election data come from?+
County-level presidential returns (2000–2024) come from the MIT Election Data and Science Lab (MEDSL), published on the Harvard Dataverse. pumsdata is an independent product that makes the data easy to map and compare, and is not affiliated with MEDSL or Harvard.