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United States · Election results history · 2014 Senate · Iowa
Election 2014 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.

2014 US Senate election in Iowa

Joni Ernst (Republican) beat Bruce Braley (Democrat) in Iowa in 2014, 52.1% to 43.8%, a margin of 8.3 points and 94,205 votes.

Iowa changed party: in 2008 it went Democratic, for Tom Harkin.

Republicans led in 85 of the 99 counties and Democrats in 14. The largest, Polk, cast 164,432 votes and went to the Democrat by 4.4 points. The closest was Winneshiek, where 25 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.

Senate

CandidatePartyVotesShare
Joni Ernst won Republican 588,575 52.1%
Bruce Braley Democratic 494,370 43.8%
All other candidates 46,755 4.1%
Total1,129,700

Every county

CountyDemocratRepublicanOthersTotalMargin
Polk 82,720 50.3% 75,545 45.9% 6,167 164,432 D+4.4
Linn 44,186 51.1% 39,116 45.2% 3,180 86,482 D+5.9
Scott 29,091 47.3% 30,518 49.6% 1,939 61,548 R+2.3
Johnson 34,103 65.0% 16,749 31.9% 1,595 52,447 D+33.1
Black Hawk 24,311 52.0% 21,007 44.9% 1,428 46,746 D+7.1
Dubuque 18,439 50.6% 16,517 45.4% 1,449 36,405 D+5.3
Story 16,376 49.7% 15,272 46.3% 1,311 32,959 D+3.3
Woodbury 11,625 38.4% 17,022 56.2% 1,626 30,273 R+17.8
Dallas 10,763 37.2% 17,205 59.5% 952 28,920 R+22.3
Pottawattamie 9,692 37.0% 15,118 57.7% 1,406 26,216 R+20.7
Warren 7,784 39.9% 10,861 55.7% 852 19,497 R+15.8
Clinton 8,339 48.5% 8,054 46.8% 799 17,192 D+1.7
Cerro Gordo 8,894 52.1% 7,600 44.6% 562 17,056 D+7.6
Jasper 6,350 42.5% 7,779 52.0% 827 14,956 R+9.6
Marshall 6,041 44.2% 7,049 51.6% 569 13,659 R+7.4
Des Moines 6,795 49.9% 6,317 46.4% 500 13,612 D+3.5
Sioux 1,475 11.0% 11,611 86.9% 277 13,363 R+75.9
Marion 4,401 33.0% 8,387 62.9% 551 13,339 R+29.9
Muscatine 5,685 43.5% 6,767 51.8% 623 13,075 R+8.3
Webster 5,374 41.3% 6,991 53.7% 653 13,018 R+12.4
Wapello 4,993 45.7% 5,326 48.8% 599 10,918 R+3.1
Lee 5,274 49.5% 4,924 46.2% 457 10,655 D+3.3
Boone 4,430 42.0% 5,639 53.5% 473 10,542 R+11.5
Benton 3,933 38.4% 5,883 57.5% 421 10,237 R+19.0
Bremer 4,207 41.9% 5,487 54.6% 355 10,049 R+12.7
Plymouth 2,182 23.7% 6,678 72.6% 342 9,202 R+48.9
Winneshiek 3,933 47.7% 3,958 48.0% 352 8,243 R+0.3
Washington 3,098 37.6% 4,781 58.1% 354 8,233 R+20.4
Carroll 2,907 36.2% 4,728 58.8% 400 8,035 R+22.7
Buchanan 3,538 44.9% 3,945 50.1% 398 7,881 R+5.2
Fayette 3,455 44.1% 4,054 51.8% 319 7,828 R+7.7
Mahaska 2,091 26.9% 5,334 68.5% 362 7,787 R+41.6
Jones 3,323 42.9% 4,092 52.8% 331 7,746 R+9.9
Jackson 3,382 44.4% 3,771 49.5% 471 7,624 R+5.1
Poweshiek 3,455 46.2% 3,696 49.4% 324 7,475 R+3.2
Cedar 2,986 40.7% 4,017 54.8% 330 7,333 R+14.1
Dickinson 2,431 33.5% 4,558 62.9% 261 7,250 R+29.3
Clayton 2,893 41.3% 3,810 54.4% 305 7,008 R+13.1
Delaware 2,620 37.9% 4,052 58.6% 244 6,916 R+20.7
Hardin 2,364 34.9% 4,082 60.3% 328 6,774 R+25.4
Iowa 2,530 37.5% 3,933 58.3% 287 6,750 R+20.8
Henry 2,320 34.9% 4,012 60.4% 308 6,640 R+25.5
Tama 2,819 42.6% 3,495 52.9% 299 6,613 R+10.2
Kossuth 2,279 34.5% 4,013 60.8% 311 6,603 R+26.3
Madison 2,226 34.1% 3,967 60.7% 338 6,531 R+26.7
Jefferson 3,237 51.4% 2,761 43.8% 304 6,302 D+7.6
Floyd 3,013 50.1% 2,727 45.4% 269 6,009 D+4.8
Clay 1,906 31.8% 3,793 63.2% 301 6,000 R+31.5
Buena Vista 2,037 34.8% 3,522 60.2% 287 5,846 R+25.4
Butler 1,944 33.6% 3,630 62.7% 214 5,788 R+29.1
Hamilton 2,035 35.8% 3,379 59.4% 275 5,689 R+23.6
O'Brien 1,093 20.1% 4,151 76.5% 185 5,429 R+56.3
Grundy 1,516 28.5% 3,626 68.2% 171 5,313 R+39.7
Allamakee 2,177 41.6% 2,762 52.8% 296 5,235 R+11.2
Cass 1,528 30.5% 3,292 65.7% 191 5,011 R+35.2
Harrison 1,650 33.2% 3,074 61.9% 244 4,968 R+28.7
Chickasaw 2,036 41.3% 2,623 53.2% 272 4,931 R+11.9
Mills 1,376 28.0% 3,281 66.9% 249 4,906 R+38.8
Cherokee 1,512 31.3% 3,036 62.9% 280 4,828 R+31.6
Page 1,270 26.3% 3,416 70.8% 137 4,823 R+44.5
Crawford 1,548 32.9% 2,889 61.3% 273 4,710 R+28.5
Wright 1,507 33.0% 2,855 62.5% 205 4,567 R+29.5
Appanoose 1,595 36.3% 2,531 57.7% 262 4,388 R+21.3
Hancock 1,530 34.9% 2,652 60.5% 198 4,380 R+25.6
Guthrie 1,367 31.4% 2,739 63.0% 245 4,351 R+31.5
Lyon 588 13.6% 3,647 84.1% 100 4,335 R+70.6
Union 1,504 35.1% 2,554 59.7% 221 4,279 R+24.5
Shelby 1,173 27.6% 2,922 68.7% 160 4,255 R+41.1
Winnebago 1,766 42.1% 2,231 53.1% 201 4,198 R+11.1
Mitchell 1,865 45.2% 2,117 51.3% 145 4,127 R+6.1
Calhoun 1,257 31.5% 2,543 63.6% 196 3,996 R+32.2
Franklin 1,221 31.3% 2,470 63.2% 216 3,907 R+32.0
Humboldt 1,137 29.3% 2,575 66.3% 170 3,882 R+37.0
Sac 1,103 29.0% 2,508 65.8% 199 3,810 R+36.9
Montgomery 892 23.5% 2,803 73.7% 107 3,802 R+50.3
Monona 1,272 34.1% 2,172 58.2% 289 3,733 R+24.1
Keokuk 1,161 31.3% 2,388 64.4% 159 3,708 R+33.1
Greene 1,370 37.7% 2,068 56.9% 195 3,633 R+19.2
Palo Alto 1,362 37.6% 2,050 56.6% 213 3,625 R+19.0
Emmet 1,234 35.2% 1,988 56.7% 286 3,508 R+21.5
Louisa 1,207 35.7% 2,019 59.7% 155 3,381 R+24.0
Howard 1,709 50.7% 1,503 44.6% 161 3,373 D+6.1
Clarke 1,198 36.6% 1,865 57.1% 206 3,269 R+20.4
Lucas 1,029 32.3% 1,944 61.1% 210 3,183 R+28.7
Adair 989 31.5% 1,967 62.6% 186 3,142 R+31.1
Worth 1,555 50.5% 1,382 44.9% 144 3,081 D+5.6
Davis 1,031 35.3% 1,727 59.2% 161 2,919 R+23.8
Monroe 970 33.5% 1,749 60.4% 177 2,896 R+26.9
Pocahontas 828 29.1% 1,877 65.9% 145 2,850 R+36.8
Van Buren 944 33.2% 1,758 61.9% 139 2,841 R+28.7
Ida 714 26.3% 1,881 69.2% 123 2,718 R+42.9
Decatur 857 33.1% 1,496 57.7% 238 2,591 R+24.7
Fremont 799 32.9% 1,513 62.3% 115 2,427 R+29.4
Audubon 851 35.1% 1,461 60.3% 111 2,423 R+25.2
Taylor 584 26.8% 1,508 69.1% 89 2,181 R+42.4
Osceola 399 18.4% 1,682 77.7% 84 2,165 R+59.3
Wayne 704 32.6% 1,343 62.1% 115 2,162 R+29.6
Ringgold 613 29.6% 1,294 62.5% 164 2,071 R+32.9
Adams 494 29.3% 1,111 65.9% 82 1,687 R+36.6

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

Iowa Senate elections we hold

YearWinnerMargin
2022 Chuck Grassley (R) R+12.2
2020 Joni Ernst (R) R+6.6
2016 Chuck Grassley (R) R+24.4
2014 Joni Ernst (R) R+8.3
2010 Chuck Grassley (R) R+31.0
2008 Tom Harkin (D) D+25.4
2004 Charles E. Grassley (R) R+42.3
2002 Tom Harkin (D) D+10.4
1998 Charles E. Grassley (R) R+37.9
1996 Tom Harkin (D) D+5.1
1992 Chuck Grassley (R) R+42.4
1990 Tom Harkin (D) D+9.1
1986 Charles E. Grassley (R) R+32.5
1984 Tom Harkin (D) D+11.8
1980 Charles E. Grassley (R) R+7.9
1978 Roger W. Jepsen (R) R+3.2
1974 John C. Culver (D) D+4.8
1972 Dick Clark (D) D+11.0
1968 Harold E. Hughes (D) D+0.6
1966 Jack Miller (R) R+23.1
1962 Bourke Hickenlooper (R) R+6.8
1960 Jack Miller (R) R+3.8
1956 Bourke Hickenlooper (R) R+7.8
1954 Thomas E. Martin (R) R+4.7
1950 Bourke Hickenlooper (R) R+10.1
1948 Guy M. Gillette (D) D+16.2
1944 Bourke Hickenlooper (R) R+2.9
1942 George A. Wilson (R) R+16.3
1938 Guy M. Gillette (D) D+0.3
1936 Clyde L. Herring (D) D+3.4
1932 Richard L. Murphy (D) D+13.9
1930 Lester Dickinson (R) R+13.3
1926 Smith W. Brookhart (R) R+13.2
1924 Smith W. Brookhart (R) R+0.1
1920 Albert B. Cummins (R) R+24.0
1918 William S. Kenyon (R) R+30.8
1914 Albert B. Cummins (R) R+9.0