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United States · Election results history · 1974 Senate · Iowa
Election 1974 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.

1974 US Senate election in Iowa

John C. Culver (Democrat) beat David M. Stanley (Republican) in Iowa in 1974, 52.0% to 47.3%, a margin of 4.8 points and 42,401 votes.

The Democratic hold continued from 1968, when Harold E. Hughes won.

Republicans led in 52 of the 99 counties as they stood then and Democrats in 47. The largest, Polk, cast 89,549 votes and went to the Democrat by 18.0 points. The closest was Pottawattamie, where 7 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
John C. Culver won Democratic 462,947 52.0%
David M. Stanley Republican 420,546 47.3%
All other candidates 6,068 0.7%
Total889,561

Every county

CountyDemocratRepublicanOthersTotalMargin
Polk 52,487 58.6% 36,388 40.6% 674 89,549 D+18.0
Linn 32,193 63.3% 18,187 35.8% 461 50,841 D+27.5
Black Hawk 21,382 52.1% 19,453 47.4% 189 41,024 D+4.7
Scott 20,082 49.6% 19,923 49.2% 473 40,478 D+0.4
Woodbury 16,154 52.9% 14,143 46.3% 243 30,540 D+6.6
Dubuque 16,987 67.9% 7,685 30.7% 363 25,035 D+37.2
Story 12,661 55.0% 10,220 44.4% 140 23,021 D+10.6
Johnson 14,020 62.6% 8,240 36.8% 149 22,409 D+25.8
Pottawattamie 10,568 49.7% 10,561 49.7% 141 21,270 level
Clinton 9,516 58.2% 6,761 41.3% 87 16,364 D+16.8
Cerro Gordo 8,516 55.8% 6,654 43.6% 102 15,272 D+12.2
Webster 7,534 53.2% 6,574 46.4% 56 14,164 D+6.8
Des Moines 7,263 55.8% 5,683 43.7% 64 13,010 D+12.1
Marshall 6,122 48.6% 6,405 50.8% 75 12,602 R+2.2
Wapello 6,808 55.9% 5,292 43.4% 80 12,180 D+12.4
Lee 6,744 55.6% 5,319 43.9% 65 12,128 D+11.7
Jasper 6,356 54.1% 5,307 45.2% 86 11,749 D+8.9
Sioux 2,788 27.3% 7,412 72.5% 25 10,225 R+45.2
Fayette 4,901 51.2% 4,608 48.1% 65 9,574 D+3.1
Warren 5,018 53.5% 4,287 45.7% 82 9,387 D+7.8
Muscatine 3,611 38.6% 5,670 60.6% 68 9,349 R+22.0
Dallas 4,848 52.9% 4,265 46.5% 55 9,168 D+6.4
Marion 4,434 52.2% 3,966 46.7% 90 8,490 D+5.5
Boone 4,462 52.8% 3,940 46.6% 47 8,449 D+6.2
Kossuth 4,074 53.4% 3,521 46.1% 39 7,634 D+7.2
Benton 3,910 51.7% 3,605 47.7% 49 7,564 D+4.0
Bremer 2,899 38.5% 4,577 60.8% 53 7,529 R+22.3
Plymouth 3,420 46.2% 3,962 53.5% 25 7,407 R+7.3
Mahaska 3,387 46.0% 3,922 53.2% 60 7,369 R+7.3
Buena Vista 3,458 47.6% 3,770 51.9% 37 7,265 R+4.3
Carroll 4,551 63.9% 2,542 35.7% 26 7,119 D+28.2
Buchanan 3,816 53.6% 3,262 45.9% 36 7,114 D+7.8
Clayton 3,705 52.1% 3,357 47.2% 47 7,109 D+4.9
Jones 3,922 56.4% 2,977 42.8% 50 6,949 D+13.6
Poweshiek 3,401 51.0% 3,216 48.3% 47 6,664 D+2.8
Tama 3,237 49.2% 3,323 50.5% 23 6,583 R+1.3
Hardin 2,974 45.2% 3,438 52.2% 169 6,581 R+7.1
Winneshiek 3,288 51.3% 3,079 48.0% 46 6,413 D+3.3
Jackson 3,757 60.2% 2,460 39.4% 29 6,246 D+20.8
Page 2,222 36.2% 3,906 63.6% 15 6,143 R+27.4
Crawford 2,988 49.8% 2,996 49.9% 22 6,006 R+0.1
O'Brien 2,461 41.1% 3,489 58.3% 32 5,982 R+17.2
Clay 2,717 45.4% 3,093 51.7% 169 5,979 R+6.3
Henry 2,552 43.0% 3,364 56.6% 25 5,941 R+13.7
Floyd 3,154 53.2% 2,744 46.3% 33 5,931 D+6.9
Cass 2,084 35.9% 3,705 63.8% 17 5,806 R+27.9
Delaware 2,828 48.8% 2,923 50.4% 48 5,799 R+1.6
Hamilton 2,544 44.5% 3,152 55.1% 27 5,723 R+10.6
Cherokee 2,841 50.3% 2,782 49.3% 24 5,647 D+1.0
Harrison 2,912 51.7% 2,713 48.1% 11 5,636 D+3.5
Appanoose 2,732 49.1% 2,826 50.7% 11 5,569 R+1.7
Cedar 2,499 46.2% 2,846 52.6% 68 5,413 R+6.4
Washington 2,238 41.9% 3,050 57.1% 55 5,343 R+15.2
Iowa 2,508 47.1% 2,788 52.3% 31 5,327 R+5.3
Shelby 2,657 50.4% 2,592 49.1% 27 5,276 D+1.2
Sac 2,432 46.5% 2,795 53.4% 8 5,235 R+6.9
Wright 2,662 50.9% 2,551 48.8% 18 5,231 D+2.1
Dickinson 2,494 47.7% 2,701 51.7% 33 5,228 R+4.0
Keokuk 2,443 48.3% 2,593 51.2% 24 5,060 R+3.0
Allamakee 2,272 44.9% 2,758 54.5% 29 5,059 R+9.6
Butler 1,750 35.0% 3,237 64.7% 19 5,006 R+29.7
Chickasaw 2,641 53.1% 2,322 46.7% 9 4,972 D+6.4
Winnebago 2,173 44.6% 2,682 55.1% 13 4,868 R+10.5
Madison 2,406 49.7% 2,396 49.5% 35 4,837 D+0.2
Grundy 1,721 36.1% 3,027 63.5% 17 4,765 R+27.4
Calhoun 2,172 46.4% 2,489 53.2% 17 4,678 R+6.8
Jefferson 1,767 39.1% 2,730 60.5% 18 4,515 R+21.3
Hancock 2,054 45.9% 2,399 53.6% 21 4,474 R+7.7
Howard 2,408 54.1% 2,031 45.6% 11 4,450 D+8.5
Palo Alto 2,433 56.0% 1,902 43.7% 13 4,348 D+12.2
Montgomery 1,498 34.5% 2,836 65.3% 12 4,346 R+30.8
Greene 2,082 47.9% 2,196 50.5% 67 4,345 R+2.6
Mitchell 2,125 49.1% 2,178 50.4% 22 4,325 R+1.2
Monona 2,189 51.0% 2,088 48.6% 17 4,294 D+2.4
Guthrie 2,002 46.7% 2,259 52.7% 26 4,287 R+6.0
Humboldt 1,908 45.2% 2,298 54.4% 15 4,221 R+9.2
Union 1,976 47.2% 2,175 52.0% 34 4,185 R+4.8
Emmet 1,953 47.6% 2,132 52.0% 17 4,102 R+4.4
Franklin 1,814 44.4% 2,233 54.6% 41 4,088 R+10.2
Lyon 1,490 36.8% 2,531 62.5% 28 4,049 R+25.7
Pocahontas 2,025 50.2% 1,989 49.3% 17 4,031 D+0.9
Decatur 1,983 51.1% 1,874 48.3% 22 3,879 D+2.8
Ida 1,739 45.6% 2,071 54.3% 5 3,815 R+8.7
Adair 1,749 46.7% 1,963 52.4% 31 3,743 R+5.7
Lucas 1,817 50.3% 1,783 49.3% 14 3,614 D+0.9
Worth 1,915 55.3% 1,540 44.5% 7 3,462 D+10.8
Clarke 1,754 52.0% 1,612 47.8% 5 3,371 D+4.2
Wayne 1,442 42.8% 1,911 56.7% 16 3,369 R+13.9
Mills 1,307 40.0% 1,935 59.2% 25 3,267 R+19.2
Louisa 1,320 40.9% 1,896 58.7% 12 3,228 R+17.8
Davis 1,713 53.6% 1,469 46.0% 13 3,195 D+7.6
Audubon 1,545 49.0% 1,591 50.5% 14 3,150 R+1.5
Fremont 1,459 47.3% 1,612 52.2% 16 3,087 R+5.0
Monroe 1,568 52.3% 1,410 47.1% 18 2,996 D+5.3
Taylor 1,276 42.7% 1,699 56.9% 13 2,988 R+14.2
Van Buren 1,060 39.8% 1,591 59.8% 10 2,661 R+20.0
Osceola 1,108 43.6% 1,404 55.3% 27 2,539 R+11.7
Adams 1,193 48.7% 1,253 51.1% 4 2,450 R+2.4
Ringgold 918 38.2% 1,481 61.6% 4 2,403 R+23.4

Counties as they stood in 1974; some have since been split, merged or renamed. 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