U.S. House seat for Wisconsin's 4th congressional district. Representatives serve two-year terms.

8 candidates filed, 3 active for the 2026 House election in Wisconsin District 4. Party primary on Aug 11, 2026. General election on Nov 3, 2026.
| Year | Winner | Result | Runner-Up | Total Votes |
|---|---|---|---|---|
| 2024 | Gwen Moore D | 74.9% | 333,651 | |
| 2022 | Gwen Moore D | 75.3% | 254,779 | |
| 2020 | Gwen Moore D | 74.7% | 311,348 | |
| 2018 | Gwen S Moore D | 75.7% | 272,748 | |
| 2016 | Gwen Moore D | 77.0% | 285,858 | |
| 2014 | Gwen Moore D | 70.3% | 254,537 | |
| 2012 | Gwen Moore D | 72.3% | 325,321 | |
| 2010 | Gwen Moore D | 69.1% | 207,904 | |
| 2008 | Gwen Moore D | 88.4% | 252,010 | |
| 2006 | Gwen Moore D | 71.5% | 191,221 | |
| 2004 | Gwen Moore D | 69.7% | 304,801 | |
| 2002 | Gerald D Kleczka D | 86.9% | 140,355 | |
| 2000 | Gerald D Kleczka D | 60.8% | 269,138 | |
| 1998 | Gerald D Kleczka D | 58.0% | 182,507 | |
| 1996 | Gerlad D Kleczka D | 57.7% | 232,908 |