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

10 candidates filed, 3 active for the 2026 House election in Missouri District 1. Party primary on Aug 4, 2026. General election on Nov 3, 2026.
| Year | Winner | Result | Runner-Up | Total Votes |
|---|---|---|---|---|
| 2024 | Wesley Bell D | 75.9% | 307,265 | |
| 2022 | Cori Bush D | 72.9% | 220,958 | |
| 2020 | Cori Bush D | 78.8% | 316,171 | |
| 2018 | Lacy Clay D | 80.1% | 274,375 | |
| 2016 | Wm Lacy Clay D | 75.5% | 314,024 | |
| 2014 | Wm Lacy Clay D | 73.0% | 163,494 | |
| 2012 | Wm Lacy Clay D | 78.7% | 340,583 | |
| 2010 | Wm Lacy Clay D | 73.6% | 184,779 | |
| 2008 | Wm Lacy Clay D | 86.9% | 279,270 | |
| 2006 | Wm Lacy Clay D | 72.9% | 194,235 | |
| 2004 | Wm Lacy Clay D | 75.3% | 283,771 | |
| 2002 | Wm Lacy Clay D | 70.1% | 191,055 | |
| 2000 | William Lacy Clay D | 75.2% | 198,347 | |
| 1998 | William \"Bill\" Clay D | 72.6% | 125,051 | |
| 1996 | William \"Bill\" Clay D | 70.2% | 187,653 |