Presidential elections · 2000–2024
Winnebago County, IL — Presidential Election Results (2000–2024)
In 2024, Winnebago County, Illinois voted for Kamala D. Harris (Democratic) by D+0.6 — 59,942 Democratic to 59,257 Republican of 121,347 votes cast. From 2020 to 2024 it shifted 1.9 points toward Republicans. That makes it 10.3 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 Winnebago County
| Year | Democratic | Republican | Other | Dem share | Rep share | Margin |
|---|---|---|---|---|---|---|
| 2024 | 59,942 | 59,257 | 2,148 | 49.4% | 48.8% | D+0.6 |
| 2020 | 64,056 | 60,861 | 2,792 | 50.2% | 47.7% | D+2.5 |
| 2016 | 55,713 | 55,624 | 7,039 | 47.1% | 47.0% | D+0.1 |
| 2012 | 61,732 | 55,138 | 2,114 | 51.9% | 46.3% | D+5.5 |
| 2008 | 70,034 | 53,886 | 2,111 | 55.6% | 42.8% | D+12.8 |
| 2004 | 59,740 | 60,782 | 903 | 49.2% | 50.1% | R+0.9 |
| 2000 | 51,981 | 53,816 | 3,500 | 47.6% | 49.2% | R+1.7 |
Winnebago County presidential elections — FAQ
Who carried Winnebago County in the 2024 presidential election?+
Kamala D. Harris (Democratic) carried Winnebago County, Illinois in 2024 by D+0.6, with 121,347 votes cast. Data: MIT Election Data & Science Lab.
How did Winnebago County shift between 2020 and 2024?+
Winnebago County shifted 1.9 points toward Republicans between 2020 (D+2.5) and 2024 (D+0.6).
Is Winnebago County more Democratic or Republican than Illinois overall?+
In 2024, Winnebago County went D+0.6 while Illinois overall went D+10.9 — 10.3 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.