The 2008 congressional elections in Illinois were held on November 4, 2008, to determine who would represent the State of Illinois in the United States House of Representatives, coinciding with the presidential and U.S. Senate elections. Representatives are elected for two-year terms; those elected served in the 111th Congress from January 3, 2009, until January 3, 2011.

Illinois had nineteen seats in the House, apportioned according to the 2000 United States census. Its 2007–2008 congressional delegation consisted of eleven Democrats and eight Republicans. It became, following the election, twelve Democrats and seven Republicans. District 11 was the only seat which changed party (from open Republican to Democratic), although CQ Politics had forecast districts 6, 8, 10, 11, 13, 14 and 18 to be at some risk for the incumbent party.

Statewide By district Results of the 2008 United States House of Representatives elections in Illinois by district:

DistrictDemocraticRepublicanOthersTotalResult Votes % Votes % Votes % Votes %District 1 233,036 85.87% 38,361 14.13% 0 0.00% 271,397 100.0% Democratic holdDistrict 2 251,052 89.41% 29,721 10.59% 3 0.00% 280,776 100.0% Democratic holdDistrict 3 172,581 73.28% 50,336 21.37% 12,607 5.35% 235,524 100.0% Democratic holdDistrict 4 112,529 80.60% 16,024 11.48% 11,053 7.92% 139,606 100.0% Democratic holdDistrict 5 170,728 73.94% 50,881 22.04% 9,283 4.02% 230,892 100.0% Democratic holdDistrict 6 109,007 42.43% 147,906 57.57% 0 0.00% 256,913 100.0% Republican holdDistrict 7 235,343 85.02% 41,474 14.98% 0 0.00% 276,817 100.0% Democratic holdDistrict 8 179,444 60.72% 116,081 39.28% 0 0.00% 295,525 100.0% Democratic holdDistrict 9 181,948 74.66% 53,593 21.99% 8,153 3.35% 243,694 100.0% Democratic holdDistrict 10 138,176 47.44% 153,082 52.56% 0 0.00% 291,258 100.0% Republican holdDistrict 10 185,652 58.40% 109,608 34.48% 22,635 7.12% 317,895 100.0% Democratic gainDistrict 12 212,891 71.40% 74,382 24.95% 10,908 3.67% 298,181 100.0% Democratic holdDistrict 13 147,430 43.65% 180,888 53.55% 9,453 2.80% 337,771 100.0% Republican holdDistrict 14 185,404 57.75% 135,653 42.25% 0 0.00% 321,057 100.0% Democratic holdDistrict 15 104,393 35.81% 187,121 64.19% 0 0.00% 291,514 100.0% Republican holdDistrict 16 112,648 36.08% 190,039 60.87% 9,533 3.05% 312,220 100.0% Republican holdDistrict 17 220,961 99.77% 0 0.00% 517 0.23% 221,478 100.0% Democratic holdDistrict 18 117,642 37.94% 182,589 58.88% 9,857 3.18% 310,088 100.0% Republican holdDistrict 19 105,338 33.38% 203,434 64.46% 6,817 2.16% 315,589 100.0% Republican holdTotal 3,176,203 60.52% 1,961,173 37.37% 110,819 2.11% 5,248,195 100.0%

District 1

This district includes part of Cook County. Democratic incumbent Bobby Rush, who has held the seat since 1993, ran against Republican nominee Antoine Members.

Predictions SourceRankingAs of The Cook Political Report November 6, 2008 Rothenberg November 2, 2008 Sabato's Crystal Ball November 6, 2008 Real Clear Politics November 7, 2008 CQ Politics November 6, 2008

District 2

This district includes parts of Cook County and Will County. Democratic nominee Jesse Jackson, Jr., who has held the seat winning a special election in December 1995, ran against Republican nominee Anthony Williams.

Predictions SourceRankingAs of The Cook Political Report November 6, 2008 Rothenberg November 2, 2008 Sabato's Crystal Ball November 6, 2008 Real Clear Politics November 7, 2008 CQ Politics November 6, 2008

District 3

This district includes part of Cook County. Democratic incumbent Dan Lipinski, who has held the seat since 2005, ran against Republican nominee Michael Hawkins and Green Party nominee Jerome Pohlen. Perennial candidate and alleged white supremacist Richard Mayers had attempted to run in the Green Party primary.

Predictions SourceRankingAs of The Cook Political Report November 6, 2008 Rothenberg November 2, 2008 Sabato's Crystal Ball November 6, 2008 Real Clear Politics November 7, 2008 CQ Politics November 6, 2008

District 4

This district includes part of Cook County. Democratic incumbent Luis Gutierrez, who has held the seat since January 1993, ran against Republican nominee Daniel Cunninghan and Green Party nominee Omar López.

Earlier in 2007, Cook County Commissioner Roberto Maldonado and Chicago aldermen Manny Flores, Ricardo Muñoz and George Cardenas had announced their intentions to run for the seat in 2008, as Gutierrez had said he planned to retire. However, Gutierrez later changed his mind and announced he would seek re-election in 2008.Rep. Gutierrez scraps plans to retire, will run in 2008 Yahoo News

Predictions SourceRankingAs of The Cook Political Report November 6, 2008 Rothenberg November 2, 2008 Sabato's Crystal Ball November 6, 2008 Real Clear Politics November 7, 2008 CQ Politics November 6, 2008

District 5

This district includes part of Cook County. Democratic incumbent Rahm Emanuel, who has held the seat since 2003, ran against Republican nominee Tom Hanson and Green Party nominee Alan Augustson.

Although Emanuel won re-election, he resigned from the congress on January 2, 2009, on the eve of the 111th Congress after being nominated to become White House Chief of Staff under Barack Obama. A special election was held on April 7, 2009, to replace Emanuel.

Predictions SourceRankingAs of The Cook Political Report November 6, 2008 Rothenberg November 2, 2008 Sabato's Crystal Ball November 6, 2008 Real Clear Politics November 7, 2008 CQ Politics November 6, 2008

District 6

This district includes parts of DuPage County and Cook County. Freshman Republican incumbent Peter Roskam, who won the then-open seat in a close election in 2006, ran against Democratic nominee Jill Morgenthaler, an Iraq War veteran.

Predictions SourceRankingAs of The Cook Political Report November 6, 2008 Rothenberg November 2, 2008 Sabato's Crystal Ball November 6, 2008 Real Clear Politics November 7, 2008 CQ Politics November 6, 2008

District 7

This district lies entirely within Cook County. Democratic incumbent Danny K. Davis, who has held the seat since 1997, ran against Republican nominee Steve Miller, a United States Navy veteran.

Predictions SourceRankingAs of The Cook Political Report November 6, 2008 Rothenberg November 2, 2008 Sabato's Crystal Ball November 6, 2008 Real Clear Politics November 7, 2008 CQ Politics November 6, 2008

District 8

This district includes parts of Lake County, McHenry County and Cook County. Democratic incumbent Melissa Bean, who has held the seat since 2005, ran against Republican nominee Steve Greenberg.

Predictions SourceRankingAs of The Cook Political Report November 6, 2008 Rothenberg November 2, 2008 Sabato's Crystal Ball November 6, 2008 Real Clear Politics November 7, 2008 CQ Politics November 6, 2008

District 9

This district includes all of Evanston, Skokie, Niles, Morton Grove, Park Ridge and Norridge, parts of Wilmette, Northfield, Glenview, Golf, Rosemont and Des Plaines, as well as much of the North Side of Chicago. Democratic incumbent Jan Schakowsky, who has held the seat since 1999, ran against Republican nominee Michael B. Younan and Green Party nominee Morris Shanfield.

Predictions SourceRankingAs of The Cook Political Report November 6, 2008 Rothenberg November 2, 2008 Sabato's Crystal Ball November 6, 2008 Real Clear Politics November 7, 2008 CQ Politics November 6, 2008

District 10

This district includes parts of Lake County and Cook County. Republican incumbent Mark Kirk, who has held the seat since 2001, ran against Democratic nominee Dan Seals, who also ran against Kirk in the 2006 election.

Predictions SourceRankingAs of The Cook Political Report November 6, 2008 Rothenberg November 2, 2008 Sabato's Crystal Ball November 6, 2008 Real Clear Politics November 7, 2008 CQ Politics November 6, 2008

District 11

This district includes the towns of Joliet, Kankakee, LaSalle, Ottawa and Streator, as well as all or parts of Will County, Kankakee County, Grundy County, LaSalle County, Bureau County, Woodford County and McLean County. An open seat, Democratic State Senate Majority Leader Debbie Halvorson ran against Republican nominee Marty Ozinga (a local businessman) and Green Party nominee Jason Wallace.

Republican incumbent Jerry Weller, who had held the seat since 1995, decided not to seek re-election, leaving this an open seat. Tim Baldermann, mayor of New Lenox and police chief of Chicago Ridge, won the Republican nomination but withdrew on February 23.Hal Dardick and Erika Slife Republican quits District 11 race, Mayor of New Lenox throws wrench into key national contest Chicago Tribune, February 23, 2008 Martin Ozinga was chosen to replace Baldermann on April 30.

Predictions SourceRankingAs of The Cook Political Report November 6, 2008 Rothenberg November 2, 2008 Sabato's Crystal Ball November 6, 2008 Real Clear Politics November 7, 2008 CQ Politics November 6, 2008

District 12

This district is in the southwest part of the state and includes the cities of Alton, Carbondale and East St. Louis. Democratic incumbent Jerry Costello, who has held the seat since August 1988, ran against Republican nominee Tim Richardson and Chairman of the Metro East Green Party Rodger Jennings.

Predictions SourceRankingAs of The Cook Political Report November 6, 2008 Rothenberg November 2, 2008 Sabato's Crystal Ball November 6, 2008 Real Clear Politics November 7, 2008 CQ Politics November 6, 2008

District 13

This district includes parts of the Cook County, DuPage County and Will County. Republican incumbent Judy Biggert, who has held the seat since January 1999, ran against Democratic nominee Scott Harper and Green Party nominee Steve Alesch. CQ Politics initially forecast the race as 'Safe Republican', but changed the forecast to 'Republican Favored' after Harper had raised more money than the 2006 Democratic nominee for this seat by mid-July.

Predictions SourceRankingAs of The Cook Political Report November 6, 2008 Rothenberg November 2, 2008 Sabato's Crystal Ball November 6, 2008 Real Clear Politics November 7, 2008 CQ Politics November 6, 2008

District 14

This district includes the cities of Aurora, Elgin, DeKalb and Dixon, as well as parts of Henry County, Whiteside County, Lee County, DeKalb County, Kane County, Kendall County and DuPage County. Democratic nominee Bill Foster, who had held the seat since March 2008, won against Republican nominee Jim Oberweis, who also lost to Foster in the special election. CQ Politics forecast the race as 'Leans Democratic'.

The district was previously represented by former Speaker of the House Dennis Hastert from 1987 to 2007. He resigned in November 2007; Bill Foster won the special election held on March 8, 2008.

Predictions SourceRankingAs of The Cook Political Report November 6, 2008 Rothenberg November 2, 2008 Sabato's Crystal Ball November 6, 2008 Real Clear Politics November 7, 2008 CQ Politics November 6, 2008

District 15

This district includes the cities of Charleston, Urbana, Danville and Champaign, as well as all or parts of Livingston County, Iroquois County, Ford County, McLean County, DeWitt County, Champaign County, Vermillion County, Macon County, Piatt County, Douglas County, Edgar County, Moultrie County, Coles County, Cumberland County, Clark County, Crawford County, Lawrence County, Wabash County, Edwards County, White County, Saline County and Gallatin County. Republican incumbent Timothy V. Johnson, who has held the seat since January 2001, won against Democratic nominee Steve Cox.

Predictions SourceRankingAs of The Cook Political Report November 6, 2008 Rothenberg November 2, 2008 Sabato's Crystal Ball November 6, 2008 Real Clear Politics November 7, 2008 CQ Politics November 6, 2008

District 16