Riding profile

IL-11

US House district — IL · Mixed · us il

The question

IL-11: a safe seat for the Democrats?

Editorial read

IL-11, a mixed riding in IL, elected a member with the Democrats in the previous cycle, with a 11-point margin. The Vote-Scope model projects the Democrats ahead at 59% vote share, against 41% for the Republicans, and the probability of a close race is negligible.

Sitting member

FOSTER, G. WILLIAM (BILL)

Sits with Democrat

Who's running

The candidates

Declared and on-ballot candidates for the upcoming election.

  • Democrat Incumbent

    Foster, G. William (Bill)

  • Republican Challenger

    Kim, Charles

  • Republican Challenger

    Pierce, Michael David Ltc (Ret.)

  • Republican Challenger

    Walter, Jeffrey D

Current forecast

Democrat

Safe

Probability
100%
Mean margin (pts)
17.6
P(close race)
0%

Projected vote share

Projection by party

  • Democrat 58.8%
  • Republican 41.2%

In context

How this riding stacks up

Democrat Republican
HereIL-11 58.8%41.2%
National averageUnited States 51.9% +6.9 46.6% −5.4

Nationwide averages computed across the 435 riding-level projections (unweighted mean).

Projection track

How the projection has moved

Previous election · US HOUSE_2024

Won by
Democrat
Margin
11.2 pts
Margin shift vs current projection
+6.4 pts

Around the region

Nearby ridings

Tone only — pick a riding to see the numbers.

Last model run
Cycle
us_house_2026