Presidential elections · 2000–2024
Fairfax County, VA — Presidential Election Results (2000–2024)
In 2024, Fairfax County, Virginia voted for Kamala D. Harris (Democratic) by D+35.0 — 386,438 Democratic to 181,895 Republican of 584,387 votes cast. From 2020 to 2024 it shifted 6.8 points toward Republicans. That makes it 29.2 points more Democratic than Virginia overall (D+5.8).
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 Fairfax County
| Year | Democratic | Republican | Other | Dem share | Rep share | Margin |
|---|---|---|---|---|---|---|
| 2024 | 386,438 | 181,895 | 16,054 | 66.1% | 31.1% | D+35.0 |
| 2020 | 419,943 | 168,401 | 12,899 | 69.8% | 28.0% | D+41.8 |
| 2016 | 355,133 | 157,710 | 38,340 | 64.4% | 28.6% | D+35.8 |
| 2012 | 315,273 | 206,773 | 7,241 | 59.6% | 39.1% | D+20.5 |
| 2008 | 310,359 | 200,994 | 4,901 | 60.1% | 38.9% | D+21.2 |
| 2004 | 245,671 | 211,980 | 3,728 | 53.2% | 45.9% | D+7.3 |
| 2000 | 196,501 | 202,181 | 15,093 | 47.5% | 48.9% | R+1.4 |
Similar-sized counties in Virginia
Fairfax County presidential elections — FAQ
Who carried Fairfax County in the 2024 presidential election?+
Kamala D. Harris (Democratic) carried Fairfax County, Virginia in 2024 by D+35.0, with 584,387 votes cast. Data: MIT Election Data & Science Lab.
How did Fairfax County shift between 2020 and 2024?+
Fairfax County shifted 6.8 points toward Republicans between 2020 (D+41.8) and 2024 (D+35.0).
Is Fairfax County more Democratic or Republican than Virginia overall?+
In 2024, Fairfax County went D+35.0 while Virginia overall went D+5.8 — 29.2 points more Democratic 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.