House districts / Illinois
Illinois's 11th congressional district
IL-11. Same lines in 2026 as in 2022.
Fundraising
- G. William (Bill) Foster Das of Oct 14, 2026Raised $2.6mSpent $1.5m · Cash $2.6m
- Jeffrey D Walter Ras of Oct 14, 2026Raised $431kSpent $424k · Cash $8k
2 other 2026 candidates filed reports (primary candidates). 3 other candidates have not filed.
Federal Election Commission, candidate totals, public domain.
President in this district
PollCheck calculation from precinct returns on the 2026 lines (method).
| Year | Democrat | Republican | Other | Margin |
|---|---|---|---|---|
| 2024 | Harris 54.4% | Trump 43.1% | 2.6% | D+11.3 |
| 2020 | Biden 56.6% | Trump 41.3% | 2.1% | D+15.3 |
| 2016 | Clinton 51.7% | Trump 41.1% | 7.2% | D+10.7 |
Who lives here
| Measure | This district | US |
|---|---|---|
| People | ||
| Population | 754,751 | |
| Adults (18+) | 577,691 | |
| Citizens, % of adults | 90.7% | 92.1% |
| Age, % of adults | ||
| 18 to 29 | 19.0% | 20.3% |
| 30 to 44 | 25.4% | 25.9% |
| 45 to 64 | 34.6% | 31.8% |
| 65 and over | 20.9% | 22.0% |
| Race and Hispanic origin, % of residents | ||
| White | 62.5% | 57.4% |
| Black | 5.9% | 11.9% |
| Hispanic | 19.4% | 19.3% |
| Asian | 8.7% | 5.9% |
| Other or more than one | 3.6% | 5.5% |
| Education and income | ||
| Bachelor's degree or higher, % of 25+ | 45.7% | 35.7% |
| Median household income | $109,255 | $80,734 |
American Community Survey 2020-2024 5-year estimates for this district. The tick marks the US figure.
Winning margin
Results since 1976
| Year | Winner | Share | Runner-up | Share | Margin |
|---|---|---|---|---|---|
| Current lines (2022 on) seat count changed from 18 to 17 after the census | |||||
| 2024 | Bill Foster Democrat | 55.6% | Jerry Evans Republican others 0.1% | 44.4% | D+11.2 |
| 2022 | Bill Foster Democrat | 56.5% | Catalina Lauf Republican | 43.5% | D+12.9 |
| Earlier lines, elections 2012-2020 seat count changed from 19 to 18 after the census | |||||
| 2020 | Bill Foster Democrat | 63.3% | Rick Laib Republican | 36.7% | D+26.6 |
| 2018 | Bill Foster Democrat | 63.8% | Nick Stella Republican | 36.2% | D+27.7 |
| 2016 | Bill Foster Democrat | 60.5% | Tonia Khouri Republican | 39.5% | D+20.9 |
| 2014 | Bill Foster Democrat | 53.5% | Darlene Senger Republican | 46.5% | D+6.9 |
| 2012 | Bill Foster Democrat | 58.6% | Judy Biggert Republican | 41.4% | D+17.1 |
| Earlier lines, elections 2002-2010 seat count changed from 20 to 19 after the census | |||||
| 2010 | Adam Kinzinger Republican | 57.4% | Deborah L. Halvorson Democrat | 42.6% | R+14.7 |
| 2008 | Deborah "Debbie" Halvorson Democrat | 58.4% | Marty Ozinga Republican others 7.1% | 34.5% | D+23.9 |
| 2006 | Jerry Weller Republican | 55.1% | John Pavich Democrat | 44.9% | R+10.2 |
| 2004 | Jerry Weller Republican | 58.7% | Tari Renner Democrat | 41.3% | R+17.3 |
| 2002 | Jerry Weller Republican | 64.3% | Keith S. Van Duyne Democrat | 35.7% | R+28.6 |
| Earlier lines, elections 1992-2000 seat count changed from 22 to 20 after the census | |||||
| 2000 | Jerry Weller Republican | 56.4% | James P. Stevenson Democrat | 43.6% | R+12.7 |
| 1998 | Jerry Weller Republican | 58.8% | Gary S. Mueller Democrat | 41.2% | R+17.6 |
| 1996 | Jerry Weller Republican | 51.8% | Clem Balanoff Democrat | 48.2% | R+3.5 |
| 1994 | Jerry Weller Republican | 60.6% | Frank Giglio Democrat | 39.4% | R+21.3 |
| 1992 | George E. Sangmeister Democrat | 55.7% | Robert T. Herbolsheimer Republican | 44.3% | D+11.3 |
| Earlier lines, elections 1982-1990 seat count changed from 24 to 22 after the census | |||||
| 1990 | Frank Annunzio Democrat | 53.6% | Walter W. Dudycz Republican others 1.8% | 44.6% | D+9.0 |
| 1988 | Frank Annunzio Democrat | 64.5% | George S. Gottlieb Republican | 35.5% | D+29.0 |
| 1986 | Frank Annunzio Democrat | 70.7% | George S. Gottlieb Republican | 29.3% | D+41.4 |
| 1984 | Frank Annunzio Democrat | 62.6% | Charles J. Theusch Republican | 37.4% | D+25.2 |
| 1982 | Frank Annunzio Democrat | 72.6% | James F. Moynihan Republican | 27.4% | D+45.1 |
| Earlier lines, elections 1976-1980 | |||||
| 1980 | Frank Annunzio Democrat | 69.8% | Michael R. Zanillo Republican | 30.2% | D+39.6 |
| 1978 | Frank Annunzio Democrat | 73.7% | John Hoeger Republican | 26.3% | D+47.5 |
| 1976 | Frank Annunzio Democrat | 67.4% | Daniel C. Reber Republican | 32.6% | D+34.8 |
More on Illinois
Other Illinois districts
About these results
Shares count all candidate votes, including write-ins, with a candidate's votes on several party lines added together. Each result is on the lines in force at the time. Mid-decade redraws before 2016 may be unmarked.
President in this district: 2016 and 2020 are estimates: precinct votes are split between districts by census block.
Counties only partly inside the district show the 2024 result for that part; estimates are labelled.
Margin chart: winner minus runner-up. Gaps are unopposed races; dashed lines are new district lines.
Sources
Results: MIT Election Data and Science Lab, U.S. House 1976-2016 (doi:10.7910/DVN/IG0UN2, CC0; via MEDSL/constituency-returns), and Clerk of the US House, Statistics of the Presidential and Congressional Election 2018-2024 (public domain).
Presidential results: PollCheck calculation from MIT Election Data and Science Lab 2024 precinct returns (doi:10.7910/DVN/XDJYKC, doi:10.7910/DVN/USBYR4, CC0; state totals doi:10.7910/DVN/42MVDX, CC0) and Voting and Election Science Team 2016 and 2020 precinct results and shapes (doi:10.7910/DVN/NH5S2I, doi:10.7910/DVN/K7760H, CC BY 4.0), with US Census Bureau 2020 block populations and block equivalency files (public domain). Official figures: Texas Legislative Council (2024 on the 2026 lines); Louisiana, New Jersey, California and Washington election offices (county totals). Certified results transcribed by Wikipedia (CC BY-SA 4.0): Maine 2024 by district: 2024 United States presidential election in Maine (revision 1382530995); Indiana county totals: 2024 United States presidential election in Indiana (revision 1382505975); Oregon county totals: 2024 United States presidential election in Oregon (revision 1382605746).
District lines: US Census Bureau TIGER/Line 2026 (120th Congress) and 2025 cartographic boundary files (119th Congress), public domain.
Members: unitedstates/congress-legislators (CC0).
Counties: US Census Bureau 2024 cartographic boundary file (public domain); 2024 county results summed from the same MEDSL precinct returns, with the official county totals above.
Demographics: US Census Bureau, American Community Survey 5-year estimates 2020-2024 (public domain).
2028 candidates: Federal Election Commission (public domain).
Photos: official portraits, public domain (US government); see Photo credits.
PollCheck US. Data through November 5, 2026. Photo credits