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IL U.S. Senate 2026

U.S. Senate · IL · upcoming · 2026

Candidates

Campaign finance

Total receipts through 2026-03-31. Source: FEC (public domain).

Demographics

Illinois · 2022 ACS 5-year. Source: Census ACS.

Population
12,757,634
Median income
$80,331

Forecast

As of 2026-06-29T03:43:04.719070+00:00. Heuristic + Monte Carlo — methodology.

96%
Democratic win probability
D+12.5
predicted margin (range D+3.6 to D+21.5)

Current officeholders

Sitting members for this seat.