San Bernardino County, California
Votes
Percentages
| Year | Democrat | Republican | Other | Total | |||
|---|---|---|---|---|---|---|---|
| 2000 | 214,749 | 47.2% | 221,757 | 48.7% | 18,387 | 4.0% | 454,893 |
| 2004 | 227,789 | 43.6% | 289,306 | 55.3% | 5,682 | 1.1% | 522,777 |
| 2008 | 315,720 | 52.1% | 277,408 | 45.8% | 13,206 | 2.2% | 606,334 |
| 2012 | 305,109 | 52.5% | 262,358 | 45.1% | 14,050 | 2.4% | 581,517 |
| 2016 | 340,833 | 52.1% | 271,240 | 41.5% | 41,910 | 6.4% | 653,983 |
| 2020 | 455,859 | 54.2% | 366,257 | 43.5% | 19,014 | 2.3% | 841,130 |