Presidential elections · 2000–2024
Mason County, WA — Presidential Election Results (2000–2024)
In 2024, Mason County, Washington voted for Donald J. Trump (Republican) by R+2.5 — 17,215 Democratic to 18,127 Republican of 36,689 votes cast. From 2020 to 2024 it shifted 1.4 points toward Democrats. That makes it 20.7 points more Republican than Washington overall (D+18.2).
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 Mason County
| Year | Democratic | Republican | Other | Dem share | Rep share | Margin |
|---|---|---|---|---|---|---|
| 2024 | 17,215 | 18,127 | 1,347 | 46.9% | 49.4% | R+2.5 |
| 2020 | 17,269 | 18,710 | 1,324 | 46.3% | 50.2% | R+3.9 |
| 2016 | 11,993 | 13,677 | 2,403 | 42.7% | 48.7% | R+6.0 |
| 2012 | 14,764 | 12,761 | 710 | 52.3% | 45.2% | D+7.1 |
| 2008 | 15,050 | 12,600 | 656 | 53.2% | 44.5% | D+8.7 |
| 2004 | 12,894 | 11,987 | 513 | 50.8% | 47.2% | D+3.6 |
| 2000 | 10,876 | 10,257 | 1,346 | 48.4% | 45.6% | D+2.8 |
Mason County presidential elections — FAQ
Who carried Mason County in the 2024 presidential election?+
Donald J. Trump (Republican) carried Mason County, Washington in 2024 by R+2.5, with 36,689 votes cast. Data: MIT Election Data & Science Lab.
How did Mason County shift between 2020 and 2024?+
Mason County shifted 1.4 points toward Democrats between 2020 (R+3.9) and 2024 (R+2.5).
Is Mason County more Democratic or Republican than Washington overall?+
In 2024, Mason County went R+2.5 while Washington overall went D+18.2 — 20.7 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.