Voting & Elections in San Diego, CA
Presidential election results and party lean trends
County-level data: Election results are reported at the county level. San Diego is located in San Diego County, CA. Results reflect all voters in the county, not just those in San Diego.
Election Overview
Source: San Diego County (2024)2024 Winner
Democrat
Dem Votes
841,372
56.9%
GOP Votes
593,270
40.2%
Total Votes
1,477,786
Margin
D+16.8%
Shift from 2020
R+6.0pp
vs prior election
📊Election Results by Year
2016–2024📈Partisan Lean Trend
D+16.8%Election History
Source: County-Level Election Results| Year | Dem Votes | GOP Votes | Total | Dem % | GOP % | Margin |
|---|---|---|---|---|---|---|
| 2024 | 841,372 | 593,270 | 1,477,786 | 56.9% | 40.2% | D+16.8 |
| 2020 | 964,650 | 600,094 | 1,601,722 | 60.2% | 37.5% | D+22.8 |
| 2016 | 567,243 | 386,807 | 1,011,651 | 56.1% | 38.2% | D+17.8 |
In the 2024 presidential election, San Diego County recorded 1,477,786 total votes. Democrats won the county with 56.9% of the vote compared to 40.2% for Republicans, a margin of D+16.8%. Compared to 2020, the margin shifted R+6.0pp from the previous election. Since 2016, San Diego County has shifted 1.1 percentage points toward Republicans.