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

10 candidates filed, 2 active for the 2026 House election in Pennsylvania District 1. Party primary on May 19, 2026. General election on Nov 3, 2026.
| Year | Winner | Result | Runner-Up | Total Votes |
|---|---|---|---|---|
| 2024 | Brian K. Fitzpatrick R | 56.4% | 463,432 | |
| 2022 | Brian K Fitzpatrick R | 54.9% | 367,380 | |
| 2020 | Brian K Fitzpatrick R | 56.6% | 441,679 | |
| 2018 | Brian K Fitzpatrick R | 51.3% | 329,798 | |
| 2016 | Robert A Brady D | 82.2% | 299,010 | |
| 2014 | Robert A Brady D | 82.8% | 158,441 | |
| 2012 | Robert A Brady D | 84.9% | 277,102 | |
| 2010 | Robert A Brady D | 100.0% | 149,944 | |
| 2008 | Robert A Brady D | 90.8% | 267,513 | |
| 2006 | Robert A Brady D | 100.0% | 137,987 | |
| 2004 | Robert A Brady D | 86.3% | 248,585 | |
| 2002 | Robert A Brady D | 86.4% | 140,090 | |
| 2000 | Robert A Brady D | 88.3% | 169,541 | |
| 1998 | Robert A Brady D | 81.2% | 95,848 | |
| 1996 | Thomas M Foglietta D | 87.5% | 165,944 |