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

7 candidates filed, 2 active for the 2026 House election in Maine District 1. Party primary on Jun 9, 2026. General election on Nov 3, 2026.
| Year | Winner | Result | Runner-Up | Total Votes |
|---|---|---|---|---|
| 2024 | Chellie Pingree D | 58.7% | 425,530 | |
| 2022 | Chellie Pingree D | 63.0% | 349,016 | |
| 2020 | Chellie Pingree D | 62.2% | 436,012 | |
| 2018 | Chellie Pingree D | 58.8% | 342,053 | |
| 2016 | Chellie Pingree D | 58.0% | 392,115 | |
| 2014 | Chellie Pingree D | 60.4% | 308,835 | |
| 2012 | Chellie Pingree D | 64.8% | 364,803 | |
| 2010 | Chellie Pingree D | 56.8% | 297,615 | |
| 2008 | Chellie Pingree D | 54.9% | 374,559 | |
| 2006 | Thomas H Allen D | 60.8% | 280,987 | |
| 2004 | Thomas H Allen D | 59.7% | 366,740 | |
| 2002 | Thomas H Allen D | 63.8% | 270,577 | |
| 2000 | Thomas H Allen D | 59.8% | 339,094 | |
| 1998 | Thomas H Allen D | 60.3% | 222,677 | |
| 1996 | Thomas H Allen D | 55.3% | 314,099 |