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

9 candidates filed, 2 active for the 2026 House election in Connecticut District 1. Party primary on Aug 11, 2026. General election on Nov 3, 2026.
| Year | Winner | Result | Runner-Up | Total Votes |
|---|---|---|---|---|
| 2024 | John B. Larson D | 59.8% | 330,482 | |
| 2022 | John B Larson D | 59.4% | 243,913 | |
| 2020 | John B Larson D | 62.7% | 339,570 | |
| 2018 | John B Larson D | 62.7% | 265,208 | |
| 2016 | John B Larson D | 62.5% | 299,258 | |
| 2014 | John B Larson D | 60.8% | 209,486 | |
| 2012 | John B Larson D | 68.2% | 282,928 | |
| 2010 | John B Larson D | 59.8% | 218,133 | |
| 2008 | John B Larson D | 69.8% | 278,554 | |
| 2006 | John B Larson D | 74.5% | 207,549 | |
| 2004 | John B Larson D | 73.0% | 272,403 | |
| 2002 | John B Larson D | 66.8% | 201,666 | |
| 2000 | John B Larson D | 71.9% | 211,263 | |
| 1998 | John B Larson D | 58.1% | 168,264 | |
| 1996 | Barbara B Kennelly D | 71.8% | 202,083 |