Bill Foster*
DEMOCRATIC
US House of Representatives (D-IL)
2008 – 2011, 2013 – Present
Illinois11th District2026 HOUSE FORECAST
Jeff Walter
REPUBLICAN
Mayor of Elburn
2026 Illinois 11th District House Forecast:
Proprietary forecast for Illinois's 11th congressional district House election between Democrat Bill Foster and Republican Jeff Walter. This page will update with a daily set of 100,000 new simulations as race fundamentals change in order to produce race odds, projected margin, and forecasted vote share. This page also includes polling averages when available.
The 2026 Illinois 11th District House election features Democrat Bill Foster and Republican Jeff Walter. Incumbent Representative Bill Foster is seeking reelection to a tenth term. In 2024, Kamala Harris won Illinois' 11th congressional district by 7.5%, and the election for the district's House seat is rated as solid Democratic in 2026.
- Year
- 2026
- Race
- House
- District
- IL-11
- Democratic candidate
- Bill Foster
- Republican candidate
- Jeff Walter
- Incumbent / open seat
- Bill Foster
- Forecast rating
- Solid D
- Projected vote
- 59.2% D / 40.8% R
- Projected margin
- D +18.4
- Forecast odds
- 97.0% D / 3.0% R
- Forecast last updated
- 12:00 AM on July 2, 2026
- Polling average
- —
- Polling average margin
- —
- Polling last updated
- —
- Polls included
- 0
- Latest poll
- —