November 3, 2026 · U.S. House
Illinois
IL · U.S. House
Full contest · Nov 3, 2026
Vote counts: Associated Press, via NBC News. Winner projections: NBC News Decision Desk. These returns are not certified.
The election, place by place
Choose a race, then select a state or county to see its votes. A lead in the count is different from a projected win.
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U.S. Census Bureau · 2025 reference boundaries. County colors describe this contest’s reported county votes, not every voter or precinct in the county.
Choose a county to see every candidate’s votes. These are county leaders, not race calls. Unlisted counties have no reviewed return in this snapshot.
| County | Leading choice | Votes for leader | Share |
|---|---|---|---|
| Cook County | Sean Casten | 77,129 | 60.0% |
| DuPage County | Sean Casten | 80,469 | 65.0% |