U.S. House seat for Maryland's 3rd congressional district. Representatives serve two-year terms.

9 candidates filed, 2 active for the 2026 House election in Maryland District 3. Party primary on Jun 23, 2026. General election on Nov 3, 2026.
| Year | Winner | Result | Runner-Up | Total Votes |
|---|---|---|---|---|
| 2024 | Sarah Elfreth D | 59.3% | 399,200 | |
| 2022 | John P Sarbanes D | 60.2% | 291,315 | |
| 2020 | John P Sarbanes D | 69.9% | 372,475 | |
| 2018 | John Sarbanes D | 69.2% | 292,657 | |
| 2016 | John P Sarbanes D | 63.3% | 339,149 | |
| 2014 | John P Sarbanes D | 59.6% | 215,623 | |
| 2012 | John P Sarbanes D | 66.9% | 319,324 | |
| 2010 | John P Sarbanes D | 61.1% | 241,241 | |
| 2008 | John P Sarbanes D | 69.8% | 291,682 | |
| 2006 | John P Sarbanes D | 64.1% | 234,257 | |
| 2004 | Benjamin L Cardin D | 63.4% | 286,969 | |
| 2002 | Benjamin L Cardin D | 65.8% | 221,310 | |
| 2000 | Benjamin L Cardin D | 75.8% | 223,412 | |
| 1998 | Benjamin L Cardin D | 77.6% | 177,168 | |
| 1996 | Benjamin L Cardin D | 67.3% | 193,433 |