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United States · Election results history · 2010 House · Illinois
Election 2010 Results

Each election opens in its own mode: the forecast before the votes are counted, the live count while races are still too close to call, and the results once every race is decided.

2010 US House elections in Illinois

Illinois elected 19 members of the House in 2010: Democrats won 8 seats and Republicans 11.

The closest was the 8th district, decided by 0.1 points: Joe Walsh (Republican) beat Melissa L. Bean (Democrat), 48.5% to 48.3%, a margin of 0.1 points and 290 votes.

In the House vote by county, Republicans led in 88 of the 102 counties and Democrats in 14. The largest, Cook, cast 1,378,312 votes and went to the Democrat by 43.1 points. The closest was Calhoun, where 62 votes separated the two parties.

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Early projection, based on early and incomplete polling: the likely matchups, each weighted by the betting markets' odds of both nominations, not a result. Each county is its 2024 presidential margin moved by its state's projected swing; set a national vote and every state, district and county moves by the same amount from our projection. Colours run in 100 steps from a safe Republican to a safe Democratic margin. Boundaries: US Census Bureau.

Every district

DistrictDemocratVotesRepublicanVotesOthersMargin
1 Bobby L. Rush148,170 (80.4%) Raymond G. Wardingley29,253 (15.9%) 6,963 D+64.5
2 Jesse L. Jackson, Jr.150,666 (80.5%) Isaac C. Hayes25,883 (13.8%) 10,564 D+66.7
3 Daniel Lipinski116,120 (69.7%) Michael A. Bendas40,479 (24.3%) 10,028 D+45.4
4 Luis V. Gutierrez63,273 (77.4%) Israel Vasquez11,711 (14.3%) 6,808 D+63.0
5 Mike Quigley108,360 (70.6%) David Ratowitz38,935 (25.4%) 6,140 D+45.3
6 Benjamin S. Lowe65,379 (36.4%) Peter J. Roskam114,456 (63.6%) R+27.3
7 Danny K. Davis149,846 (81.5%) Mark M. Weiman29,575 (16.1%) 4,428 D+65.4
8 Melissa L. Bean97,825 (48.3%) Joe Walsh98,115 (48.5%) 6,495 R+0.1
9 Janice D. Scakowsky117,553 (66.3%) Joel Barry Pollak55,182 (31.1%) 4,472 D+35.2
10 Daniel J. Seals105,290 (48.9%) Robert Dold109,941 (51.1%) 1 R+2.2
11 Deborah L. Halvorson96,019 (42.7%) Adam Kinzinger129,108 (57.3%) R+14.7
12 Jerry F. Costello121,272 (59.8%) Teri Newman74,046 (36.5%) 7,387 D+23.3
13 Scott Harper86,281 (36.2%) Judy Biggert152,132 (63.8%) R+27.6
14 Bill Foster98,645 (45.0%) Randall M. "Randy" Hultgren112,369 (51.3%) 7,999 R+6.3
15 David Gill75,948 (35.7%) Timothy V. Johnson136,915 (64.3%) R+28.6
16 George W. Gaulrapp66,037 (31.0%) Donald A. Manzullo138,299 (65.0%) 8,425 R+34.0
17 Phil Hare85,454 (43.0%) Bobby Schilling104,583 (52.6%) 8,861 R+9.6
18 Deirdre "D. K." Hirner57,046 (25.8%) Aaron Schock152,868 (69.1%) 11,256 R+43.3
19 Tim Bagwell67,132 (28.8%) John Shimkus166,166 (71.2%) R+42.5

The House vote in every county

CountyDemocratRepublicanOthersTotalMargin
Cook 960,654 69.7% 367,024 26.6% 50,634 1,378,312 D+43.1
DuPage 102,638 36.2% 180,242 63.6% 546 283,426 R+27.4
Lake 101,430 49.8% 98,882 48.5% 3,508 203,820 D+1.3
Will 84,038 43.7% 108,154 56.2% 184 192,376 R+12.5
Kane 58,026 45.7% 64,331 50.7% 4,574 126,931 R+5.0
McHenry 31,369 33.5% 58,346 62.3% 3,984 93,699 R+28.8
Winnebago 28,294 34.4% 50,943 62.0% 2,913 82,150 R+27.6
Madison 37,022 45.3% 43,533 53.3% 1,173 81,728 R+8.0
St. Clair 50,361 62.3% 28,183 34.9% 2,259 80,803 D+27.4
Sangamon 22,317 31.1% 47,511 66.1% 2,038 71,866 R+35.1
Champaign 23,774 44.1% 30,133 55.9% 53,907 R+11.8
Peoria 16,166 30.7% 32,812 62.3% 3,663 52,641 R+31.6
McLean 18,990 36.6% 32,856 63.4% 51,846 R+26.7
Rock Island 22,060 47.3% 23,054 49.4% 1,541 46,655 R+2.1
Tazewell 11,091 24.3% 32,393 70.9% 2,205 45,689 R+46.6
Macon 13,338 36.7% 21,718 59.7% 1,332 36,388 R+23.0
LaSalle 14,259 42.4% 19,339 57.6% 33,598 R+15.1
Kankakee 13,743 42.3% 18,749 57.7% 32,492 R+15.4
Kendall 13,508 43.5% 16,352 52.7% 1,169 31,029 R+9.2
DeKalb 12,726 44.4% 14,567 50.9% 1,347 28,640 R+6.4
Adams 5,189 21.9% 17,696 74.6% 847 23,732 R+52.7
Vermilion 8,758 39.1% 13,635 60.9% 22,393 R+21.8
Williamson 10,626 48.3% 10,478 47.6% 891 21,995 D+0.7
Whiteside 8,326 44.2% 9,770 51.8% 751 18,847 R+7.7
Henry 7,170 39.7% 10,274 56.9% 606 18,050 R+17.2
Ogle 4,532 26.3% 12,023 69.7% 683 17,238 R+43.5
Knox 7,597 45.4% 8,477 50.7% 656 16,730 R+5.3
Grundy 6,996 42.1% 9,630 57.9% 16,626 R+15.8
Jackson 9,538 58.3% 5,643 34.5% 1,170 16,351 D+23.8
Macoupin 7,147 43.8% 8,400 51.5% 779 16,326 R+7.7
Boone 4,195 28.1% 10,038 67.3% 680 14,913 R+39.2
Coles 5,150 34.7% 9,681 65.3% 14,831 R+30.6
Stephenson 5,250 35.5% 8,987 60.7% 567 14,804 R+25.2
Woodford 2,344 16.9% 10,881 78.3% 672 13,897 R+61.4
Franklin 7,486 57.5% 4,958 38.1% 575 13,019 D+19.4
Clinton 3,152 24.5% 9,733 75.5% 12,885 R+51.1
Effingham 2,716 21.2% 10,119 78.8% 12,835 R+57.7
Bureau 4,399 35.1% 7,994 63.9% 123 12,516 R+28.7
Livingston 3,682 29.6% 8,744 70.4% 12,426 R+40.7
Christian 3,882 31.5% 8,299 67.3% 142 12,323 R+35.8
Jefferson 3,641 29.7% 8,598 70.3% 12,239 R+40.5
Monroe 5,904 49.8% 5,721 48.2% 235 11,860 D+1.5
Marion 3,679 31.1% 8,143 68.9% 11,822 R+37.8
Randolph 6,955 59.8% 4,319 37.1% 352 11,626 D+22.7
Fulton 6,146 53.0% 4,787 41.3% 668 11,601 D+11.7
Lee 4,150 38.1% 6,336 58.1% 419 10,905 R+20.0
Morgan 2,552 23.7% 7,665 71.3% 533 10,750 R+47.6
Iroquois 1,885 18.0% 8,580 82.0% 10,465 R+64.0
Montgomery 3,552 37.3% 5,722 60.1% 248 9,522 R+22.8
McDonough 3,266 35.4% 5,494 59.6% 453 9,213 R+24.2
Logan 1,449 16.6% 6,940 79.5% 340 8,729 R+62.9
Shelby 2,202 27.2% 5,858 72.3% 37 8,097 R+45.2
Jo Daviess 2,652 33.2% 4,995 62.5% 349 7,996 R+29.3
Saline 2,618 33.7% 5,152 66.3% 7,770 R+32.6
Jersey 2,472 32.8% 5,018 66.5% 51 7,541 R+33.8
Perry 4,586 61.4% 2,567 34.4% 315 7,468 D+27.0
Crawford 2,160 31.3% 4,748 68.7% 6,908 R+37.5
Edgar 2,131 30.9% 4,755 69.1% 6,886 R+38.1
Mercer 2,804 41.3% 3,670 54.1% 314 6,788 R+12.8
Hancock 1,853 27.3% 4,588 67.6% 341 6,782 R+40.3
Piatt 2,044 30.2% 4,715 69.8% 6,759 R+39.5
Fayette 1,831 27.2% 4,863 72.2% 38 6,732 R+45.0
Wayne 1,118 16.8% 5,537 83.2% 6,655 R+66.4
Union 3,573 54.6% 2,659 40.7% 306 6,538 D+14.0
Douglas 1,560 24.3% 4,870 75.7% 6,430 R+51.5
Pike 1,591 25.4% 4,412 70.5% 259 6,262 R+45.0
Clark 2,043 33.5% 4,058 66.5% 6,101 R+33.0
Warren 2,375 39.4% 3,414 56.7% 237 6,026 R+17.2
Washington 1,455 25.3% 4,288 74.7% 5,743 R+49.3
De Witt 2,172 38.0% 3,546 62.0% 5,718 R+24.0
Bond 1,770 32.2% 3,723 67.8% 5,493 R+35.6
White 1,440 27.7% 3,761 72.3% 5,201 R+44.6
Carroll 1,676 32.7% 3,236 63.1% 218 5,130 R+30.4
Richland 1,359 26.7% 3,722 73.3% 5,081 R+46.5
Lawrence 1,725 34.3% 3,305 65.7% 5,030 R+31.4
Mason 1,383 28.3% 3,298 67.5% 205 4,886 R+39.2
Moultrie 1,638 34.0% 3,178 66.0% 4,816 R+32.0
Menard 1,036 21.6% 3,522 73.4% 241 4,799 R+51.8
Massac 1,353 28.4% 3,419 71.6% 4,772 R+43.3
Clay 1,105 23.2% 3,652 76.8% 4,757 R+53.5
Ford 1,148 24.9% 3,466 75.1% 4,614 R+50.2
Johnson 1,124 24.7% 3,432 75.3% 4,556 R+50.7
Greene 1,427 32.9% 2,764 63.7% 146 4,337 R+30.8
Marshall 915 21.3% 3,086 71.8% 296 4,297 R+50.5
Cumberland 1,420 33.5% 2,816 66.5% 4,236 R+33.0
Jasper 1,050 26.5% 2,905 73.5% 3,955 R+46.9
Wabash 1,152 29.3% 2,774 70.7% 3,926 R+41.3
Cass 947 24.8% 2,709 71.1% 155 3,811 R+46.2
Henderson 1,590 46.3% 1,671 48.6% 174 3,435 R+2.4
Hamilton 1,041 31.1% 2,302 68.9% 3,343 R+37.7
Schuyler 713 24.5% 2,063 70.7% 140 2,916 R+46.3
Pulaski 1,700 62.2% 970 35.5% 65 2,735 D+26.7
Alexander 1,776 65.3% 877 32.2% 67 2,720 D+33.1
Putnam 721 31.0% 1,534 65.9% 72 2,327 R+34.9
Calhoun 1,126 49.6% 1,064 46.9% 78 2,268 D+2.7
Edwards 348 15.7% 1,872 84.3% 2,220 R+68.6
Brown 399 19.1% 1,619 77.4% 73 2,091 R+58.3
Gallatin 902 43.5% 1,171 56.5% 2,073 R+13.0
Hardin 667 33.0% 1,352 67.0% 2,019 R+33.9
Pope 550 28.0% 1,416 72.0% 1,966 R+44.0
Stark 386 20.1% 1,414 73.5% 124 1,924 R+53.4
Scott 371 21.1% 1,323 75.2% 66 1,760 R+54.1

Margin: the Democrat's share of all votes minus the Republican's. Sources and how the results were checked.

Illinois in every House election we hold

YearSeatsHouse vote
2024 D 14, R 3 D+5.8
2022 D 14, R 3 D+12.4
2020 D 13, R 5 D+16.0
2018 D 13, R 5 D+22.1
2016 D 11, R 7 D+7.9
2014 D 10, R 8 D+2.8
2012 D 12, R 6 D+10.6
2010 D 8, R 11 D+4.2
2008 D 12, R 7 D+23.2
2006 D 10, R 9 D+15.8
2004 D 10, R 9 D+8.1
2002 D 9, R 10 D+2.4
2000 D 10, R 10 D+12.4
1998 D 10, R 10 R+1.8
1996 D 10, R 10 D+11.0
1994 D 10, R 10 R+3.8
1992 D 12, R 8 D+12.0
1990 D 15, R 7 D+9.7