Presidential elections · 2000–2024
Marshall County, IA — Presidential Election Results (2000–2024)
In 2024, Marshall County, Iowa voted for Donald J. Trump (Republican) by R+15.5 — 7,134 Democratic to 9,815 Republican of 17,270 votes cast. From 2020 to 2024 it shifted 7.6 points toward Republicans. That makes it 2.3 points more Republican than Iowa overall (R+13.2).
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 Marshall County
| Year | Democratic | Republican | Other | Dem share | Rep share | Margin |
|---|---|---|---|---|---|---|
| 2024 | 7,134 | 9,815 | 321 | 41.3% | 56.8% | R+15.5 |
| 2020 | 8,176 | 9,610 | 350 | 45.1% | 53.0% | R+7.9 |
| 2016 | 7,652 | 9,146 | 1,182 | 42.6% | 50.9% | R+8.3 |
| 2012 | 10,257 | 8,472 | 335 | 53.8% | 44.4% | D+9.4 |
| 2008 | 10,023 | 8,278 | 356 | 53.7% | 44.4% | D+9.4 |
| 2004 | 9,443 | 9,557 | 164 | 49.3% | 49.9% | R+0.6 |
| 2000 | 8,322 | 8,785 | 517 | 47.2% | 49.8% | R+2.6 |
Marshall County presidential elections — FAQ
Who carried Marshall County in the 2024 presidential election?+
Donald J. Trump (Republican) carried Marshall County, Iowa in 2024 by R+15.5, with 17,270 votes cast. Data: MIT Election Data & Science Lab.
How did Marshall County shift between 2020 and 2024?+
Marshall County shifted 7.6 points toward Republicans between 2020 (R+7.9) and 2024 (R+15.5).
Is Marshall County more Democratic or Republican than Iowa overall?+
In 2024, Marshall County went R+15.5 while Iowa overall went R+13.2 — 2.3 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.