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United States · Election results history · 2016 House · Iowa
Election 2016 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.

2016 US House elections in Iowa

Iowa elected 4 members of the House in 2016: Democrats won 1 seats and Republicans 3.

The closest was the 2nd district, decided by 7.5 points: David Loebsack (Democrat) beat Christopher Peters (Republican), 53.7% to 46.2%, a margin of 7.5 points and 27,638 votes.

In the House vote by county, Republicans led in 86 of the 99 counties and Democrats in 13. The largest, Polk, cast 225,233 votes and went to the Democrat by 0.1 points. The closest was Cedar, where 109 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 Monica Vernon177,403 (46.1%) Rod Blum206,903 (53.7%) 671 R+7.7
2 David Loebsack198,571 (53.7%) Christopher Peters170,933 (46.2%) 528 D+7.5
3 Jim Mowrer155,002 (39.7%) David Young208,598 (53.4%) 26,687 R+13.7
4 Kim Weaver142,993 (38.6%) Steve King226,719 (61.2%) 547 R+22.6

The House vote in every county

CountyDemocratRepublicanOthersTotalMargin
Polk 105,062 46.6% 104,791 46.5% 15,380 225,233 D+0.1
Linn 58,744 51.3% 55,383 48.4% 274 114,401 D+2.9
Scott 44,445 53.2% 38,997 46.7% 108 83,550 D+6.5
Johnson 50,691 68.3% 23,386 31.5% 112 74,189 D+36.8
Black Hawk 31,948 50.8% 30,853 49.1% 91 62,892 D+1.7
Dubuque 22,025 45.3% 26,515 54.6% 63 48,603 R+9.2
Story 26,405 54.9% 21,590 44.9% 112 48,107 D+10.0
Woodbury 18,567 43.7% 23,877 56.1% 90 42,534 R+12.5
Pottawattamie 13,062 31.9% 23,975 58.6% 3,890 40,927 R+26.7
Dallas 12,663 34.0% 22,491 60.5% 2,050 37,204 R+26.4
Warren 9,471 35.7% 15,393 58.1% 1,632 26,496 R+22.4
Clinton 12,185 54.3% 10,214 45.5% 34 22,433 D+8.8
Cerro Gordo 10,450 47.4% 11,563 52.5% 25 22,038 R+5.1
Muscatine 9,946 53.1% 8,780 46.8% 18 18,744 D+6.2
Des Moines 10,190 55.7% 8,089 44.2% 25 18,304 D+11.5
Jasper 8,809 48.2% 9,455 51.7% 25 18,289 R+3.5
Sioux 2,928 16.5% 14,774 83.3% 27 17,729 R+66.8
Marshall 7,558 44.0% 9,587 55.8% 25 17,170 R+11.8
Marion 6,611 39.1% 10,276 60.8% 20 16,907 R+21.7
Webster 6,929 41.3% 9,809 58.5% 27 16,765 R+17.2
Lee 8,543 54.3% 7,152 45.5% 27 15,722 D+8.8
Wapello 7,574 52.2% 6,912 47.6% 32 14,518 D+4.6
Boone 6,292 45.8% 7,421 54.0% 17 13,730 R+8.2
Benton 5,001 37.3% 8,394 62.6% 23 13,418 R+25.3
Bremer 5,301 40.0% 7,943 59.9% 21 13,265 R+19.9
Plymouth 3,575 27.9% 9,207 71.9% 18 12,800 R+44.0
Winneshiek 5,168 47.1% 5,793 52.8% 9 10,970 R+5.7
Washington 4,905 46.5% 5,621 53.3% 13 10,539 R+6.8
Dickinson 3,619 35.7% 6,503 64.2% 11 10,133 R+28.5
Carroll 3,800 37.6% 6,305 62.3% 11 10,116 R+24.8
Buchanan 4,250 42.5% 5,739 57.4% 14 10,003 R+14.9
Mahaska 3,384 33.9% 6,585 66.0% 11 9,980 R+32.1
Jones 3,959 39.9% 5,941 59.9% 23 9,923 R+20.0
Fayette 3,910 40.0% 5,854 59.8% 19 9,783 R+19.9
Jackson 4,158 43.0% 5,493 56.9% 11 9,662 R+13.8
Poweshiek 4,322 46.0% 5,069 53.9% 14 9,405 R+7.9
Cedar 4,658 50.5% 4,549 49.3% 13 9,220 D+1.2
Delaware 3,062 33.7% 6,010 66.2% 13 9,085 R+32.4
Henry 4,141 45.9% 4,861 53.9% 13 9,015 R+8.0
Clayton 3,504 39.3% 5,393 60.5% 11 8,908 R+21.2
Iowa 3,172 36.9% 5,412 62.9% 18 8,602 R+26.0
Tama 3,489 40.8% 5,058 59.1% 14 8,561 R+18.3
Kossuth 3,232 38.1% 5,238 61.8% 5 8,475 R+23.7
Madison 2,281 26.9% 5,653 66.8% 530 8,464 R+39.8
Clay 3,015 36.1% 5,331 63.8% 9 8,355 R+27.7
Hardin 3,056 36.8% 5,252 63.2% 4 8,312 R+26.4
Buena Vista 3,322 41.6% 4,655 58.3% 4 7,981 R+16.7
Jefferson 4,572 58.7% 3,194 41.0% 18 7,784 D+17.7
Floyd 3,446 44.4% 4,314 55.5% 7 7,767 R+11.2
Hamilton 2,913 39.2% 4,513 60.7% 13 7,439 R+21.5
Mills 1,751 23.9% 5,050 68.9% 525 7,326 R+45.0
O'Brien 1,819 25.2% 5,398 74.7% 10 7,227 R+49.5
Harrison 2,361 32.9% 4,811 66.9% 15 7,187 R+34.1
Butler 2,235 31.3% 4,898 68.6% 12 7,145 R+37.3
Page 1,471 21.4% 5,069 73.8% 324 6,864 R+52.4
Cass 1,570 23.0% 4,875 71.3% 395 6,840 R+48.3
Crawford 2,368 35.4% 4,315 64.5% 6 6,689 R+29.1
Allamakee 2,573 38.7% 4,067 61.1% 13 6,653 R+22.5
Grundy 1,823 27.4% 4,823 72.5% 5 6,651 R+45.1
Lyon 1,099 17.8% 5,066 82.0% 10 6,175 R+64.2
Cherokee 2,226 36.4% 3,888 63.5% 9 6,123 R+27.1
Chickasaw 2,446 40.0% 3,664 59.9% 5 6,115 R+19.9
Shelby 1,809 30.2% 4,185 69.8% 3 5,997 R+39.6
Appanoose 2,590 44.3% 3,253 55.6% 6 5,849 R+11.3
Wright 2,102 36.1% 3,716 63.8% 3 5,821 R+27.7
Hancock 1,877 32.9% 3,826 67.0% 5 5,708 R+34.1
Union 1,723 30.4% 3,588 63.3% 354 5,665 R+32.9
Guthrie 1,473 26.1% 3,751 66.6% 411 5,635 R+40.4
Winnebago 2,201 39.2% 3,405 60.7% 7 5,613 R+21.5
Mitchell 1,864 35.7% 3,357 64.3% 3 5,224 R+28.6
Sac 1,585 31.2% 3,490 68.6% 12 5,087 R+37.4
Calhoun 1,586 32.1% 3,339 67.6% 11 4,936 R+35.5
Montgomery 1,069 21.8% 3,553 72.4% 285 4,907 R+50.6
Humboldt 1,344 27.6% 3,522 72.2% 10 4,876 R+44.7
Louisa 2,179 45.2% 2,639 54.7% 8 4,826 R+9.5
Franklin 1,653 34.6% 3,118 65.3% 7 4,778 R+30.7
Keokuk 1,945 41.4% 2,754 58.6% 4 4,703 R+17.2
Emmet 1,671 36.1% 2,955 63.8% 6 4,632 R+27.7
Greene 1,902 41.2% 2,707 58.7% 3 4,612 R+17.5
Palo Alto 1,703 37.1% 2,875 62.7% 7 4,585 R+25.6
Monona 1,571 35.0% 2,914 64.9% 8 4,493 R+29.9
Howard 1,845 42.1% 2,532 57.8% 3 4,380 R+15.7
Clarke 1,925 46.1% 2,246 53.8% 5 4,176 R+7.7
Lucas 1,585 38.7% 2,511 61.3% 2 4,098 R+22.6
Worth 1,550 38.1% 2,510 61.7% 9 4,069 R+23.6
Davis 1,795 47.7% 1,959 52.0% 11 3,765 R+4.4
Pocahontas 1,096 29.3% 2,642 70.6% 4 3,742 R+41.3
Adair 951 25.5% 2,563 68.6% 221 3,735 R+43.2
Monroe 1,731 47.6% 1,898 52.2% 5 3,634 R+4.6
Ida 1,106 31.3% 2,424 68.6% 5 3,535 R+37.3
Decatur 1,577 45.1% 1,914 54.7% 8 3,499 R+9.6
Fremont 714 20.6% 2,477 71.4% 276 3,467 R+50.9
Van Buren 1,455 42.0% 2,001 57.8% 7 3,463 R+15.8
Audubon 1,167 36.7% 2,011 63.2% 2 3,180 R+26.5
Osceola 694 22.6% 2,375 77.3% 2 3,071 R+54.7
Taylor 612 21.2% 2,101 72.9% 171 2,884 R+51.6
Wayne 1,135 40.2% 1,687 59.7% 3 2,825 R+19.5
Ringgold 653 25.1% 1,820 69.9% 129 2,602 R+44.9
Adams 476 23.4% 1,448 71.1% 114 2,038 R+47.7

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

Iowa in every House election we hold

YearSeatsHouse vote
2024 D 0, R 4 R+13.0
2022 D 0, R 4 R+12.5
2020 D 1, R 3 R+5.9
2018 D 3, R 1 D+4.0
2016 D 1, R 3 R+9.2
2014 D 1, R 3 R+7.7
2012 D 2, R 2 D+3.0
2010 D 3, R 2 R+10.6
2008 D 3, R 2 D+4.1
2006 D 3, R 2 R+2.9
2004 D 1, R 4 R+13.6
2002 D 1, R 4 R+9.2
2000 D 1, R 4 R+14.6
1998 D 1, R 4 R+23.7
1996 D 1, R 4 R+9.8
1994 D 0, R 5 R+15.6
1992 D 1, R 4 R+19.0
1990 D 2, R 4 D+2.0