Thursday, October 15, 2026
B.C. votes in 9 days

Illinois’s 14th District

U.S. House · IL-14

Election day November 3, 2026 · forecast of October 15, 2026

Our forecast gives the Democrats a more than 99% chance of winning, with an average lead of 21.5 points.

Safe seat. Chance of a final gap under 5 points: 1%.

Projected vote share

Projection by party

  • Democrat 60.7%

    Lauren Underwood, incumbent

  • Republican 39.3%

    James T. "jim" Marter

Thin vertical mark: 2024 result.

Compared with the average

Democrat Republican
IL-14 60.7%39.3%
National averageUnited States 54.5%+6.2 44.2%−5.0

Simple average of the 435 districts, not weighted by population.

Projection track

How the projection has moved

Local profile

Latino citizens aged 18 and over17.8% (± 0.3)

Share of all citizens aged 18 and over (ACS 2020–2024 estimate). Not a share of registered or actual voters.

Source: U.S. Census Bureau, citizen voting-age population by race and ethnicity, ACS 2020–2024, 119th Congress districts

Current member

Lauren Underwood · Democrat

Primary results

Held March 17, 2026 · Official source

Democratic primary Lauren Underwood 100.0% 56,414 votes
Republican primary James T. "jim" Marter 74.9% 23,312 votes

Who's running

The candidates

Candidates for the upcoming election.

  • Democrat Incumbent

    Lauren Underwood

    source
  • Republican Challenger

    James T. "Jim" Marter

    source

Previous election (2024)

The Democrats won by 10.2 points.

Our current projection: the Democrats ahead by 21.5 points.

Nearby districts

Party ahead and how sure the projection is.

  • IL-11 Democrat, safe seat
  • IL-6 Democrat, safe seat
  • IL-1 Democrat, safe seat
  • IL-8 Democrat, safe seat
  • IL-7 Democrat, safe seat
  • IL-4 Democrat, safe seat

Watch list

The tightest races

The smallest projected gaps between the top two.

  1. AZ-2Republican52%5.7-point gap
  2. KY-6Republican53%5.8-point gap
  3. VA-1Republican58%5.8-point gap
Forecast updated