House districts / Illinois
Illinois's 8th congressional district
IL-8. Same lines in 2026 as in 2022.
Fundraising
- Melissa Luburich Bean Das of Oct 14, 2026Raised $2.5mSpent $2.2m · Cash $302k
- Jennifer Davis Ras of Oct 14, 2026Raised $1.8mSpent $1.5m · Cash $280k
10 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 52.3% | Trump 45.4% | 2.3% | D+6.8 |
| 2020 | Biden 56.8% | Trump 41.4% | 1.9% | D+15.4 |
| 2016 | Clinton 54.6% | Trump 38.9% | 6.5% | D+15.7 |
Who lives here
| Measure | This district | US |
|---|---|---|
| People | ||
| Population | 746,772 | |
| Adults (18+) | 580,324 | |
| Citizens, % of adults | 85.4% | 92.1% |
| Age, % of adults | ||
| 18 to 29 | 18.1% | 20.3% |
| 30 to 44 | 27.0% | 25.9% |
| 45 to 64 | 34.1% | 31.8% |
| 65 and over | 20.8% | 22.0% |
| Race and Hispanic origin, % of residents | ||
| White | 52.5% | 57.4% |
| Black | 4.6% | 11.9% |
| Hispanic | 25.1% | 19.3% |
| Asian | 13.8% | 5.9% |
| Other or more than one | 3.9% | 5.5% |
| Education and income | ||
| Bachelor's degree or higher, % of 25+ | 40.0% | 35.7% |
| Median household income | $99,637 | $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 | Raja Krishnamoorthi Democrat | 57.1% | Mark Rice Republican | 42.9% | D+14.1 |
| 2022 | Raja Krishnamoorthi Democrat | 56.9% | Chris Dargis Republican | 43.1% | D+13.8 |
| Earlier lines, elections 2012-2020 seat count changed from 19 to 18 after the census | |||||
| 2020 | Raja Krishnamoorthi Democrat | 73.2% | Preston Gabriel Nelson Libertarian | 26.8% | D+46.3 |
| 2018 | Raja Krishnamoorthi Democrat | 66.0% | Jitendra “JD” Diganvker Republican | 34.0% | D+31.9 |
| 2016 | Raja Krishnamoorthi Democrat | 58.3% | Peter "Pete" DiCianni Republican | 41.7% | D+16.6 |
| 2014 | Tammy Duckworth Democrat | 55.7% | Larry Kaifesh Republican | 44.3% | D+11.5 |
| 2012 | Tammy Duckworth Democrat | 54.7% | Joe Walsh Republican | 45.3% | D+9.5 |
| Earlier lines, elections 2002-2010 seat count changed from 20 to 19 after the census | |||||
| 2010 | Joe Walsh Republican | 48.5% | Melissa L. Bean Democrat others 3.2% | 48.3% | R+0.1 |
| 2008 | Melissa L. Bean Democrat | 60.7% | Steve Greenberg Republican | 39.3% | D+21.4 |
| 2006 | Melissa L. Bean Democrat | 50.9% | David McSweeney Republican others 5.1% | 44.0% | D+6.9 |
| 2004 | Melissa Bean Democrat | 51.7% | Philip M. Crane Republican | 48.3% | D+3.4 |
| 2002 | Philip M. Crane Republican | 57.4% | Melissa L. Bean Democrat | 42.6% | R+14.9 |
| Earlier lines, elections 1992-2000 seat count changed from 22 to 20 after the census | |||||
| 2000 | Philip M. Crane Republican | 61.0% | Lance Pressl Democrat | 39.0% | R+22.0 |
| 1998 | Philip M. Crane Republican | 68.7% | Mike Rothman Democrat | 31.4% | R+37.3 |
| 1996 | Philip M. Crane Republican | 62.2% | Elizabeth Anne (Betty) Hull Democrat others 1.7% | 36.1% | R+26.1 |
| 1994 | Philip M. Crane Republican | 64.9% | Robert C. Walberg Democrat | 35.1% | R+29.9 |
| 1992 | Philip M. Crane Republican | 55.7% | Sheila A. Smith Democrat others 3.9% | 40.4% | R+15.3 |
| Earlier lines, elections 1982-1990 seat count changed from 24 to 22 after the census | |||||
| 1990 | Dan Rostenkowski Democrat | 79.1% | Robert Marshall Libertarian | 20.9% | D+58.2 |
| 1988 | Dan Rostenkowski Democrat | 74.6% | V. Stephen Vetter Republican others 1.3% | 24.0% | D+50.6 |
| 1986 | Dan Rostenkowski Democrat | 78.7% | Thomas J. DeFazio Republican | 21.3% | D+57.5 |
| 1984 | Dan Rostenkowski Democrat | 71.3% | Spiro F. Georgeson Republican | 28.7% | D+42.6 |
| 1982 | Dan Rostenkowski Democrat | 83.4% | Bonnie Hickey Republican | 16.6% | D+66.9 |
| Earlier lines, elections 1976-1980 | |||||
| 1980 | Dan Rostenkowski Democrat | 84.7% | Walter F. Zilke Republican | 15.3% | D+69.3 |
| 1978 | Dan Rostenkowski Democrat | 86.0% | Carl C. LoDico Republican | 14.0% | D+71.9 |
| 1976 | Daniel D. Rostenkowski Democrat | 80.5% | John F. Urbaszewski Republican | 19.5% | D+61.1 |
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