Presidential elections · 2000–2024
Alameda County, CA — Presidential Election Results (2000–2024)
In 2024, Alameda County, California voted for Kamala D. Harris (Democratic) by D+53.6 — 499,551 Democratic to 140,789 Republican of 669,907 votes cast. From 2020 to 2024 it shifted 8.9 points toward Republicans. That makes it 33.5 points more Democratic than California overall (D+20.1).
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 Alameda County
| Year | Democratic | Republican | Other | Dem share | Rep share | Margin |
|---|---|---|---|---|---|---|
| 2024 | 499,551 | 140,789 | 29,567 | 74.6% | 21.0% | D+53.6 |
| 2020 | 617,659 | 136,309 | 16,102 | 80.2% | 17.7% | D+62.5 |
| 2016 | 514,842 | 95,922 | 43,502 | 78.7% | 14.7% | D+64.0 |
| 2012 | 469,684 | 108,182 | 17,776 | 78.9% | 18.2% | D+60.7 |
| 2008 | 489,106 | 119,555 | 12,368 | 78.8% | 19.3% | D+59.5 |
| 2004 | 422,585 | 130,911 | 7,246 | 75.4% | 23.3% | D+52.0 |
| 2000 | 342,889 | 119,279 | 32,168 | 69.4% | 24.1% | D+45.2 |
Alameda County presidential elections — FAQ
Who carried Alameda County in the 2024 presidential election?+
Kamala D. Harris (Democratic) carried Alameda County, California in 2024 by D+53.6, with 669,907 votes cast. Data: MIT Election Data & Science Lab.
How did Alameda County shift between 2020 and 2024?+
Alameda County shifted 8.9 points toward Republicans between 2020 (D+62.5) and 2024 (D+53.6).
Is Alameda County more Democratic or Republican than California overall?+
In 2024, Alameda County went D+53.6 while California overall went D+20.1 — 33.5 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.