Presidential elections · 2000–2024
Cass County, IA — Presidential Election Results (2000–2024)
In 2024, Cass County, Iowa voted for Donald J. Trump (Republican) by R+40.6 — 2,077 Democratic to 5,007 Republican of 7,217 votes cast. From 2020 to 2024 it shifted 2.4 points toward Republicans. That makes it 27.4 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 Cass County
| Year | Democratic | Republican | Other | Dem share | Rep share | Margin |
|---|---|---|---|---|---|---|
| 2024 | 2,077 | 5,007 | 133 | 28.8% | 69.4% | R+40.6 |
| 2020 | 2,201 | 4,979 | 96 | 30.3% | 68.4% | R+38.2 |
| 2016 | 1,951 | 4,761 | 413 | 27.4% | 66.8% | R+39.4 |
| 2012 | 2,858 | 4,217 | 130 | 39.7% | 58.5% | R+18.9 |
| 2008 | 3,211 | 4,006 | 133 | 43.7% | 54.5% | R+10.8 |
| 2004 | 2,679 | 4,796 | 68 | 35.5% | 63.6% | R+28.1 |
| 2000 | 2,481 | 4,206 | 193 | 36.1% | 61.1% | R+25.1 |
Cass County presidential elections — FAQ
Who carried Cass County in the 2024 presidential election?+
Donald J. Trump (Republican) carried Cass County, Iowa in 2024 by R+40.6, with 7,217 votes cast. Data: MIT Election Data & Science Lab.
How did Cass County shift between 2020 and 2024?+
Cass County shifted 2.4 points toward Republicans between 2020 (R+38.2) and 2024 (R+40.6).
Is Cass County more Democratic or Republican than Iowa overall?+
In 2024, Cass County went R+40.6 while Iowa overall went R+13.2 — 27.4 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.