U.S. House seat for Illinois's 16th congressional district. Representatives serve two-year terms.

7 candidates filed, 2 active for the 2026 House election in Illinois District 16. Party primary on Mar 17, 2026. General election on Nov 3, 2026.
| Year | Winner | Result | Runner-Up | Total Votes |
|---|---|---|---|---|
| 2024 | Darin Lahood R | 100.0% | 310,925 | |
| 2022 | Darin Lahood R | 66.3% | 297,946 | |
| 2020 | Adam Kinzinger R | 64.7% | 338,159 | |
| 2018 | Adam Kinzinger R | 59.1% | 255,823 | |
| 2016 | Adam Kinzinger R | 100.0% | 259,722 | |
| 2014 | Adam Kinzinger R | 70.6% | 217,198 | |
| 2012 | Adam Kinzinger R | 61.8% | 294,090 | |
| 2010 | Donald A Manzullo R | 65.0% | 212,761 | |
| 2008 | Donald A Manzullo R | 60.9% | 312,220 | |
| 2006 | Donald A Manzullo R | 66.4% | 188,970 | |
| 2004 | Donald A Manzullo R | 69.1% | 295,802 | |
| 2002 | Donald A Manzullo R | 70.6% | 188,827 | |
| 2000 | Donald A Manzullo R | 66.7% | 266,955 | |
| 1998 | Donald A Manzullo R | 100.0% | 143,686 | |
| 1996 | Donald A Manzullo R | 60.3% | 228,098 |