United States · Election results history · 2008 Senate · Iowa

Election 2008 Results

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2008 US Senate election in Iowa

Tom Harkin (Democrat) beat Christopher Reed (Republican) in Iowa in 2008, 62.7% to 37.3%, a margin of 25.4 points and 381,659 votes.

The Democratic hold continued from 2002, when Tom Harkin also won.

Democrats led in 94 of the 99 counties and Republicans in 5. The largest, Polk, cast 211,235 votes and went to the Democrat by 24.1 points. The closest was Page, where 53 votes separated the two parties.

United States

Results

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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

Candidate	Party	Votes	Share
Tom Harkin won	Democratic	941,665	62.7%
Christopher Reed	Republican	560,006	37.3%
All other candidates		1,247	0.1%
Total		1,502,918

Every county

County	Democrat	Republican	Others	Total	Margin
Polk	130,928 62.0%	80,051 37.9%	256	211,235	D+24.1
Linn	74,373 66.9%	36,662 33.0%	141	111,176	D+33.9
Scott	55,129 65.7%	28,642 34.2%	76	83,847	D+31.6
Johnson	52,741 74.9%	17,537 24.9%	135	70,413	D+50.0
Black Hawk	42,681 68.0%	20,043 31.9%	46	62,770	D+36.1
Dubuque	32,086 68.9%	14,482 31.1%	27	46,595	D+37.8
Story	28,351 62.7%	16,802 37.2%	46	45,199	D+25.6
Woodbury	26,038 60.0%	17,358 40.0%	27	43,423	D+20.0
Pottawattamie	23,980 58.4%	17,017 41.5%	34	41,031	D+17.0
Dallas	16,765 52.3%	15,248 47.6%	17	32,030	D+4.7
Warren	13,979 57.1%	10,471 42.8%	17	24,467	D+14.3
Clinton	17,238 71.0%	7,025 28.9%	9	24,272	D+42.1
Cerro Gordo	16,314 68.6%	7,449 31.3%	13	23,776	D+37.3
Des Moines	13,721 68.3%	6,343 31.6%	24	20,088	D+36.7
Jasper	11,368 59.4%	7,759 40.5%	11	19,138	D+18.9
Muscatine	12,348 66.4%	6,242 33.5%	17	18,607	D+32.8
Marshall	11,023 60.0%	7,327 39.9%	10	18,360	D+20.1
Webster	11,773 64.5%	6,460 35.4%	11	18,244	D+29.1
Lee	11,473 68.2%	5,327 31.7%	13	16,813	D+36.6
Marion	8,609 51.3%	8,168 48.7%	10	16,787	D+2.6
Sioux	4,291 26.4%	11,945 73.6%	4	16,240	R+47.1
Wapello	10,184 65.6%	5,336 34.3%	16	15,536	D+31.2
Boone	8,365 60.9%	5,361 39.0%	8	13,734	D+21.9
Benton	8,519 63.0%	4,985 36.9%	8	13,512	D+26.2
Bremer	7,778 61.6%	4,835 38.3%	4	12,617	D+23.3
Plymouth	6,240 51.5%	5,886 48.5%		12,126	D+2.9
Winneshiek	7,612 69.7%	3,303 30.2%	6	10,921	D+39.5
Mahaska	5,490 51.1%	5,248 48.9%	5	10,743	D+2.3
Washington	6,122 59.2%	4,209 40.7%	6	10,337	D+18.5
Buchanan	6,952 68.3%	3,226 31.7%	2	10,180	D+36.6
Fayette	6,810 67.2%	3,326 32.8%	3	10,139	D+34.4
Carroll	5,905 58.4%	4,194 41.5%	5	10,104	D+16.9
Jones	6,306 64.0%	3,543 35.9%	7	9,856	D+28.0
Poweshiek	6,196 62.9%	3,647 37.0%	8	9,851	D+25.9
Dickinson	5,843 60.3%	3,846 39.7%	3	9,692	D+20.6
Jackson	6,871 70.9%	2,813 29.0%	2	9,686	D+41.9
Cedar	6,123 64.7%	3,343 35.3%	4	9,470	D+29.4
Henry	5,193 56.8%	3,950 43.2%	7	9,150	D+13.6
Kossuth	5,880 65.5%	3,100 34.5%	2	8,982	D+31.0
Clayton	5,907 66.8%	2,916 33.0%	18	8,841	D+33.8
Hardin	5,131 58.6%	3,611 41.3%	7	8,749	D+17.4
Delaware	5,513 63.0%	3,234 37.0%	1	8,748	D+26.1
Tama	5,547 63.7%	3,163 36.3%	3	8,713	D+27.4
Jefferson	5,690 67.7%	2,700 32.1%	10	8,400	D+35.6
Iowa	5,051 60.3%	3,318 39.6%	6	8,375	D+20.7
Madison	4,386 52.5%	3,953 47.4%	9	8,348	D+5.2
Buena Vista	5,071 61.8%	3,129 38.1%	2	8,202	D+23.7
Clay	4,898 59.7%	3,297 40.2%	6	8,201	D+19.5
Floyd	5,629 70.4%	2,360 29.5%	2	7,991	D+40.9
Hamilton	4,765 60.0%	3,178 40.0%	2	7,945	D+20.0
Harrison	4,422 60.1%	2,928 39.8%	9	7,359	D+20.3
Page	3,565 49.6%	3,618 50.3%	3	7,186	R+0.7
Cass	3,928 54.9%	3,230 45.1%	3	7,161	D+9.7
O'Brien	3,259 45.6%	3,881 54.3%	3	7,143	R+8.7
Butler	4,031 57.0%	3,030 42.9%	5	7,066	D+14.2
Mills	3,715 52.9%	3,303 47.0%	6	7,024	D+5.9
Crawford	4,469 64.8%	2,420 35.1%	5	6,894	D+29.7
Allamakee	4,429 64.3%	2,453 35.6%	4	6,886	D+28.7
Grundy	3,389 50.4%	3,325 49.5%	4	6,718	D+1.0
Chickasaw	4,445 68.9%	2,005 31.1%	1	6,451	D+37.8
Wright	3,786 60.1%	2,509 39.9%	1	6,296	D+20.3
Cherokee	3,883 61.8%	2,398 38.2%	1	6,282	D+23.6
Shelby	3,449 55.3%	2,787 44.7%	5	6,241	D+10.6
Appanoose	3,541 58.3%	2,524 41.6%	5	6,070	D+16.8
Winnebago	3,912 65.6%	2,055 34.4%		5,967	D+31.1
Lyon	2,318 39.0%	3,614 60.9%	6	5,938	R+21.8
Hancock	3,518 60.2%	2,326 39.8%	2	5,846	D+20.4
Union	3,458 59.7%	2,336 40.3%	3	5,797	D+19.4
Guthrie	3,147 54.4%	2,635 45.5%	6	5,788	D+8.8
Mitchell	3,881 68.8%	1,761 31.2%	3	5,645	D+37.6
Keokuk	3,170 60.9%	2,035 39.1%	1	5,206	D+21.8
Montgomery	2,812 54.5%	2,343 45.4%	1	5,156	D+9.1
Calhoun	2,994 58.8%	2,096 41.1%	6	5,096	D+17.6
Franklin	2,993 59.0%	2,075 40.9%	2	5,070	D+18.1
Humboldt	2,777 54.9%	2,275 45.0%	4	5,056	D+9.9
Sac	2,850 57.7%	2,088 42.3%	4	4,942	D+15.4
Emmet	3,337 68.2%	1,554 31.8%	2	4,893	D+36.4
Louisa	3,167 65.6%	1,656 34.3%	2	4,825	D+31.3
Greene	2,743 58.1%	1,977 41.9%	3	4,723	D+16.2
Monona	3,026 64.4%	1,671 35.5%	4	4,701	D+28.8
Palo Alto	3,012 64.4%	1,665 35.6%	3	4,680	D+28.8
Howard	3,361 72.4%	1,281 27.6%		4,642	D+44.8
Clarke	2,680 60.8%	1,727 39.2%	2	4,409	D+21.6
Lucas	2,360 53.6%	2,039 46.3%	1	4,400	D+7.3
Worth	3,081 73.4%	1,113 26.5%	2	4,196	D+46.9
Decatur	2,448 60.8%	1,577 39.2%		4,025	D+21.6
Adair	2,367 58.9%	1,648 41.0%	4	4,019	D+17.9
Pocahontas	2,291 57.9%	1,666 42.1%	3	3,960	D+15.8
Monroe	2,260 59.3%	1,549 40.7%	1	3,810	D+18.7
Fremont	2,260 59.5%	1,537 40.4%	4	3,801	D+19.0
Davis	2,236 58.9%	1,556 41.0%	2	3,794	D+17.9
Van Buren	2,022 57.5%	1,492 42.4%	5	3,519	D+15.1
Ida	1,987 57.8%	1,447 42.1%	2	3,436	D+15.7
Audubon	1,958 58.2%	1,406 41.8%	1	3,365	D+16.4
Osceola	1,465 48.2%	1,570 51.7%	3	3,038	R+3.5
Taylor	1,745 59.0%	1,209 40.9%	2	2,956	D+18.1
Wayne	1,596 54.3%	1,340 45.6%	1	2,937	D+8.7
Ringgold	1,648 61.7%	1,023 38.3%	1	2,672	D+23.4
Adams	1,288 59.3%	885 40.7%		2,173	D+18.5

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

Iowa Senate elections we hold

Year	Winner	Margin
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

2008 US Senate election in Iowa

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