U.S. House seat for California's 13th congressional district. Representatives serve two-year terms.

7 candidates filed, 2 active for the 2026 House election in California District 13. General election on Nov 3, 2026.
| Year | Winner | Result | Runner-Up | Total Votes |
|---|---|---|---|---|
| 2024 | Adam Gray D | 50.0% | 210,921 | |
| 2022 | John Duarte R | 50.2% | 133,556 | |
| 2020 | Barbara Lee D | 90.4% | 362,818 | |
| 2018 | Barbara Lee D | 88.4% | 294,837 | |
| 2016 | Barbara Lee D | 90.8% | 322,871 | |
| 2014 | Barbara Lee D | 88.5% | 190,431 | |
| 2012 | Barbara Lee D | 86.8% | 288,582 | |
| 2010 | Fortney Pete Stark D | 72.2% | 163,853 | |
| 2008 | Fortney Pete Stark D | 76.4% | 218,276 | |
| 2006 | Fortney Pete Stark D | 74.9% | 147,897 | |
| 2004 | Fortney Pete Stark D | 71.6% | 201,921 | |
| 2002 | Fortney Pete Stark D | 71.1% | 121,723 | |
| 2000 | Fortney Pete Stark D | 70.4% | 183,146 | |
| 1998 | Fortney Pete Stark D | 71.2% | 142,787 | |
| 1996 | Fortney Pete Stark D | 65.2% | 175,539 |