U.S. House seat for Maryland's 1st congressional district. Representatives serve two-year terms.

7 candidates filed, 2 active for the 2026 House election in Maryland District 1. Party primary on Jun 23, 2026. General election on Nov 3, 2026.
| Year | Winner | Result | Runner-Up | Total Votes |
|---|---|---|---|---|
| 2024 | Andy Harris R | 59.4% | 414,680 | |
| 2022 | Andy Harris R | 54.5% | 293,108 | |
| 2020 | Andy Harris R | 63.6% | 394,778 | |
| 2018 | Andy Harris R | 60.0% | 306,037 | |
| 2016 | Andy Harris R | 67.1% | 361,566 | |
| 2014 | Andy Harris R | 70.5% | 250,185 | |
| 2012 | Andy Harris R | 67.0% | 319,873 | |
| 2010 | Andy Harris R | 54.2% | 286,394 | |
| 2008 | Frank M Kratovil Jr D | 49.2% | 360,151 | |
| 2006 | Wayne T Gilchrest R | 68.9% | 268,915 | |
| 2004 | Wayne T Gilchrest R | 75.9% | 323,021 | |
| 2002 | Wayne T Gilchrest R | 76.8% | 249,990 | |
| 2000 | Wayne T Gilchrest R | 64.5% | 256,388 | |
| 1998 | Wayne T Gilchrest R | 69.2% | 196,221 | |
| 1996 | Wayne T Gilchrest R | 61.6% | 212,858 |