Presidential elections · 2000–2024
Mason County, IL — Presidential Election Results (2000–2024)
In 2024, Mason County, Illinois voted for Donald J. Trump (Republican) by R+42.2 — 1,773 Democratic to 4,464 Republican of 6,374 votes cast. From 2020 to 2024 it shifted 2.8 points toward Republicans. That makes it 53.1 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 Mason County
| Year | Democratic | Republican | Other | Dem share | Rep share | Margin |
|---|---|---|---|---|---|---|
| 2024 | 1,773 | 4,464 | 137 | 27.8% | 70.0% | R+42.2 |
| 2020 | 1,985 | 4,654 | 127 | 29.3% | 68.8% | R+39.4 |
| 2016 | 2,014 | 4,058 | 414 | 31.1% | 62.6% | R+31.5 |
| 2012 | 2,867 | 3,265 | 140 | 45.7% | 52.1% | R+6.3 |
| 2008 | 3,542 | 3,141 | 125 | 52.0% | 46.1% | D+5.9 |
| 2004 | 3,215 | 3,907 | 61 | 44.8% | 54.4% | R+9.6 |
| 2000 | 3,192 | 3,411 | 169 | 47.1% | 50.4% | R+3.2 |
Mason County presidential elections — FAQ
Who carried Mason County in the 2024 presidential election?+
Donald J. Trump (Republican) carried Mason County, Illinois in 2024 by R+42.2, with 6,374 votes cast. Data: MIT Election Data & Science Lab.
How did Mason County shift between 2020 and 2024?+
Mason County shifted 2.8 points toward Republicans between 2020 (R+39.4) and 2024 (R+42.2).
Is Mason County more Democratic or Republican than Illinois overall?+
In 2024, Mason County went R+42.2 while Illinois overall went D+10.9 — 53.1 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.