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United States · Election results history · 1954 Senate · Iowa
Election 1954 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.

1954 US Senate election in Iowa

Thomas E. Martin (Republican) beat Guy M. Gillette (Democrat) in Iowa in 1954, 52.2% to 47.5%, a margin of 4.7 points and 39,697 votes.

Iowa changed party: in 1948 it went Democratic, for Guy M. Gillette.

Republicans led in 75 of the 99 counties as they stood then and Democrats in 23. The largest, Polk, cast 74,701 votes and went to the Democrat by 10.4 points. The closest was Johnson, where 2 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
Thomas E. Martin won Republican 442,409 52.2%
Guy M. Gillette Democratic 402,712 47.5%
All other candidates 2,234 0.3%
Total847,355

Every county

CountyDemocratRepublicanOthersTotalMargin
Polk 41,147 55.1% 33,391 44.7% 163 74,701 D+10.4
Linn 16,448 48.1% 17,623 51.6% 108 34,179 R+3.4
Woodbury 17,696 54.2% 14,879 45.6% 81 32,656 D+8.6
Scott 15,270 47.6% 16,776 52.3% 33 32,079 R+4.7
Black Hawk 13,947 47.7% 14,913 51.0% 378 29,238 R+3.3
Dubuque 13,241 61.2% 8,294 38.3% 113 21,648 D+22.9
Pottawattamie 8,402 45.5% 10,063 54.4% 17 18,482 R+9.0
Wapello 9,307 58.2% 6,649 41.6% 37 15,993 D+16.6
Clinton 6,956 44.1% 8,720 55.3% 93 15,769 R+11.2
Lee 7,796 50.6% 7,588 49.2% 31 15,415 D+1.3
Cerro Gordo 6,987 47.3% 7,692 52.1% 98 14,777 R+4.8
Des Moines 6,954 48.9% 7,223 50.8% 34 14,211 R+1.9
Webster 7,591 53.9% 6,473 46.0% 23 14,087 D+7.9
Johnson 6,520 50.0% 6,518 50.0% 2 13,040 level
Story 4,775 41.4% 6,746 58.5% 19 11,540 R+17.1
Jasper 6,105 53.2% 5,356 46.7% 20 11,481 D+6.5
Marshall 4,868 45.8% 5,744 54.1% 14 10,626 R+8.2
Muscatine 4,494 44.5% 5,592 55.4% 6 10,092 R+10.9
Marion 4,974 55.7% 3,944 44.1% 20 8,938 D+11.5
Fayette 3,712 43.2% 4,863 56.5% 26 8,601 R+13.4
Kossuth 4,566 53.5% 3,959 46.4% 14 8,539 D+7.1
Dallas 4,156 49.4% 4,238 50.4% 14 8,408 R+1.0
Clayton 4,138 49.3% 4,245 50.6% 14 8,397 R+1.3
Winneshiek 3,790 46.3% 4,383 53.6% 10 8,183 R+7.2
Carroll 4,838 59.6% 3,264 40.2% 22 8,124 D+19.4
Boone 4,180 52.3% 3,792 47.5% 16 7,988 D+4.9
Sioux 2,112 27.4% 5,574 72.3% 20 7,706 R+44.9
Appanoose 3,732 50.2% 3,694 49.7% 11 7,437 D+0.5
Page 2,266 31.1% 5,002 68.6% 24 7,292 R+37.5
Tama 3,210 45.9% 3,767 53.9% 9 6,986 R+8.0
Mahaska 3,126 45.5% 3,730 54.3% 15 6,871 R+8.8
Hardin 2,912 42.8% 3,867 56.8% 25 6,804 R+14.0
Plymouth 2,644 39.0% 4,125 60.8% 14 6,783 R+21.8
Henry 2,444 36.2% 4,279 63.4% 24 6,747 R+27.2
Keokuk 3,138 47.6% 3,441 52.2% 10 6,589 R+4.6
Jackson 2,920 44.6% 3,619 55.2% 15 6,554 R+10.7
Poweshiek 3,175 48.5% 3,359 51.3% 15 6,549 R+2.8
Buena Vista 2,880 44.0% 3,652 55.8% 16 6,548 R+11.8
Benton 3,143 48.1% 3,378 51.7% 11 6,532 R+3.6
Harrison 3,051 46.7% 3,481 53.3% 6,532 R+6.6
Washington 2,232 34.5% 4,221 65.3% 11 6,464 R+30.8
Cass 2,301 35.9% 4,084 63.8% 17 6,402 R+27.9
Warren 2,988 46.7% 3,402 53.1% 12 6,402 R+6.5
Allamakee 2,442 38.8% 3,831 60.9% 16 6,289 R+22.1
Delaware 2,488 39.7% 3,770 60.2% 9 6,267 R+20.5
Floyd 2,519 40.3% 3,710 59.4% 20 6,249 R+19.1
Chickasaw 3,085 50.0% 3,085 50.0% 4 6,174 level
Wright 2,808 46.1% 3,269 53.7% 12 6,089 R+7.6
Union 2,643 44.3% 3,295 55.2% 28 5,966 R+10.9
Cedar 2,006 33.7% 3,937 66.2% 8 5,951 R+32.4
Hamilton 2,489 41.9% 3,440 58.0% 7 5,936 R+16.0
Buchanan 2,417 40.9% 3,488 59.0% 9 5,914 R+18.1
Jefferson 2,411 40.9% 3,481 59.0% 9 5,901 R+18.1
Shelby 2,841 48.4% 3,008 51.3% 18 5,867 R+2.8
Bremer 2,467 42.8% 3,280 56.9% 13 5,760 R+14.1
Jones 2,390 41.9% 3,299 57.9% 12 5,701 R+15.9
Crawford 3,115 54.7% 2,546 44.7% 35 5,696 D+10.0
Iowa 2,253 40.1% 3,341 59.5% 21 5,615 R+19.4
Cherokee 2,782 49.8% 2,801 50.1% 8 5,591 R+0.3
O'Brien 2,037 37.2% 3,422 62.5% 15 5,474 R+25.3
Clay 2,183 40.5% 3,205 59.4% 7 5,395 R+18.9
Palo Alto 2,856 53.5% 2,474 46.4% 7 5,337 D+7.2
Guthrie 2,468 46.3% 2,858 53.6% 9 5,335 R+7.3
Monona 2,812 52.8% 2,501 47.0% 13 5,326 D+5.8
Montgomery 1,867 35.1% 3,437 64.7% 8 5,312 R+29.6
Sac 2,305 43.8% 2,946 56.0% 12 5,263 R+12.2
Emmet 2,067 39.7% 3,132 60.2% 5 5,204 R+20.5
Howard 2,622 50.7% 2,542 49.1% 12 5,176 D+1.5
Wayne 2,496 48.9% 2,607 51.0% 5 5,108 R+2.2
Lucas 2,495 49.4% 2,545 50.4% 8 5,048 R+1.0
Madison 2,258 45.3% 2,716 54.5% 6 4,980 R+9.2
Decatur 2,615 53.1% 2,307 46.8% 4 4,926 D+6.3
Hancock 1,966 40.4% 2,881 59.2% 17 4,864 R+18.8
Greene 2,116 44.6% 2,619 55.2% 10 4,745 R+10.6
Butler 1,600 34.2% 3,072 65.6% 13 4,685 R+31.4
Humboldt 2,167 46.9% 2,452 53.0% 4 4,623 R+6.2
Monroe 2,326 50.5% 2,278 49.4% 3 4,607 D+1.0
Pocahontas 2,369 51.4% 2,216 48.1% 22 4,607 D+3.3
Mitchell 1,887 41.1% 2,695 58.7% 10 4,592 R+17.6
Franklin 1,905 41.8% 2,634 57.8% 15 4,554 R+16.0
Audubon 2,386 52.5% 2,153 47.4% 5 4,544 D+5.1
Calhoun 2,010 44.6% 2,476 54.9% 21 4,507 R+10.3
Davis 2,514 56.7% 1,920 43.3% 4,434 D+13.4
Fremont 2,021 45.7% 2,396 54.2% 6 4,423 R+8.5
Dickinson 2,062 46.8% 2,334 53.0% 6 4,402 R+6.2
Winnebago 1,684 38.9% 2,628 60.7% 14 4,326 R+21.8
Grundy 1,517 35.2% 2,789 64.7% 6 4,312 R+29.5
Taylor 1,831 42.8% 2,440 57.0% 9 4,280 R+14.2
Adair 1,769 42.9% 2,342 56.8% 9 4,120 R+13.9
Mills 1,636 40.2% 2,430 59.6% 8 4,074 R+19.5
Worth 2,057 52.1% 1,885 47.7% 9 3,951 D+4.4
Ida 1,769 47.1% 1,979 52.7% 5 3,753 R+5.6
Van Buren 1,323 36.8% 2,271 63.1% 5 3,599 R+26.3
Lyon 1,242 34.9% 2,296 64.6% 16 3,554 R+29.7
Louisa 1,231 34.7% 2,312 65.2% 4 3,547 R+30.5
Clarke 1,687 49.6% 1,709 50.2% 8 3,404 R+0.6
Ringgold 1,431 43.0% 1,891 56.9% 4 3,326 R+13.8
Adams 1,413 43.5% 1,829 56.3% 4 3,246 R+12.8
Osceola 1,424 46.9% 1,606 52.9% 6 3,036 R+6.0

Counties as they stood in 1954; 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