Michael Dukakis carried Iowa D+10.2.

Michael Dukakis (D) vs George H. W. Bush (R) in Iowa, 1988. The state ran 17.9 points more Democratic than the nation (R+7.7 nationally).

Nominees: Michael Dukakis (D) · George H. W. Bush (R)

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Iowa result

1,225,614 votes counted

Dukakis (D)

670,557

54.7%

Bush (R)

545,355

44.5%

All others

9,702

0.8%

Margin

D+10.2

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1988 presidential election

Iowa, 1988

DukakisD+10.2

How it voted

Share of the 1988 vote

Michael Dukakis ✓Democratic	54.7%	670,557
George H. W. BushRepublican	44.5%	545,355
OtherAll other candidates	0.8%	9,702

D+60

R+60

99 counties, each filled by 1988 D-vs-R margin. Hover any county for its result.

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Iowa's presidential margins

1892–2024, the 1988 contest in context

Iowa's presidential margins

Year	Margin (D minus R)
1892	−5.3%
1896	−12.6%
1900	−18.6%
1904	−32.7%
1908	−15.0%
1912	+13.3%
1916	−11.4%
1920	−45.5%
1924	−38.6%
1928	−24.2%
1932	+17.7%
1936	+11.7%
1940	−4.4%
1944	−4.5%
1948	+2.7%
1952	−28.2%
1956	−18.4%
1960	−13.5%
1964	+24.0%
1968	−12.2%
1972	−17.1%
1976	−1.0%
1980	−12.7%
1984	−7.4%
1988	+10.2%
1992	+6.0%
1996	+10.3%
2000	+0.3%
2004	−0.7%
2008	+9.5%
2012	+5.8%
2016	−9.3%
2020	−8.2%
2024	−13.2%

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County results — 1988

99 counties; every row links to the county's full page.

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County	Won	Margin	Democratic	Republican	Total
Adair County	D	+10.4%	2,261	1,833	4,123
Adams County	D	+8.5%	1,283	1,080	2,380
Allamakee County	R	−7.0%	2,768	3,186	5,995
Appanoose County	D	+7.1%	3,209	2,779	6,088
Audubon County	D	+11.4%	1,863	1,478	3,371
Benton County	D	+18.7%	5,873	4,011	9,977
Black Hawk County	D	+13.4%	31,657	24,112	56,171
Boone County	D	+24.4%	7,232	4,381	11,686
Bremer County	R	−1.2%	4,961	5,079	10,099
Buchanan County	D	+15.4%	4,778	3,495	8,321
Buena Vista County	D	+4.6%	4,580	4,170	8,825
Butler County	R	−15.1%	2,593	3,523	6,146
Calhoun County	D	+9.4%	2,990	2,474	5,505
Carroll County	D	+18.7%	5,437	3,701	9,273
Cass County	R	−14.8%	2,934	3,962	6,968
Cedar County	D	+8.8%	4,032	3,373	7,479
Cerro Gordo County	D	+15.6%	12,857	9,358	22,365
Cherokee County	D	+5.2%	3,574	3,218	6,855
Chickasaw County	D	+16.0%	3,530	2,549	6,136
Clarke County	D	+16.0%	2,262	1,631	3,934
Clay County	D	+6.8%	4,173	3,641	7,870
Clayton County	D	+5.8%	4,320	3,839	8,242
Clinton County	D	+10.0%	12,549	10,243	23,002
Crawford County	D	+6.7%	3,868	3,375	7,311
Dallas County	D	+21.3%	7,501	4,858	12,419
Davis County	D	+17.7%	2,246	1,563	3,849
Decatur County	D	+21.7%	2,192	1,406	3,627
Delaware County	D	+7.0%	3,947	3,425	7,432
Des Moines County	D	+20.3%	11,593	7,652	19,374
Dickinson County	R	−4.7%	3,342	3,678	7,101
Dubuque County	D	+24.0%	23,797	14,530	38,547
Emmet County	D	+12.2%	2,778	2,173	4,977
Fayette County	D	+3.7%	5,304	4,921	10,287
Floyd County	D	+14.4%	4,377	3,266	7,733
Franklin County	D	+5.5%	2,594	2,320	4,951
Fremont County	R	−11.3%	1,547	1,946	3,527
Greene County	D	+17.8%	3,011	2,091	5,164
Grundy County	R	−21.5%	2,211	3,433	5,682
Guthrie County	D	+18.2%	2,910	2,005	4,983
Hamilton County	D	+11.7%	4,156	3,277	7,494
Hancock County	D	+1.8%	2,831	2,731	5,593
Hardin County	D	+13.7%	5,088	3,856	9,001
Harrison County	R	−3.7%	2,883	3,108	6,027
Henry County	R	−2.5%	3,754	3,951	7,758
Howard County	D	+8.3%	2,330	1,970	4,325
Humboldt County	D	+2.2%	2,713	2,594	5,357
Ida County	R	−4.3%	1,787	1,951	3,779
Iowa County	D	+1.4%	3,338	3,247	6,685
Jackson County	D	+19.8%	4,864	3,237	8,233
Jasper County	D	+14.2%	8,940	6,703	15,733
Jefferson County	R	−0.3%	3,594	3,614	7,296
Johnson County	D	+29.8%	28,759	15,453	44,647
Jones County	D	+14.0%	4,641	3,496	8,185
Keokuk County	D	+11.9%	2,899	2,278	5,230
Kossuth County	D	+12.6%	5,088	3,938	9,107
Lee County	D	+27.1%	10,911	6,228	17,290
Linn County	D	+12.9%	42,993	33,129	76,718
Louisa County	D	+4.7%	2,268	2,060	4,380
Lucas County	D	+16.0%	2,454	1,776	4,243
Lyon County	R	−34.4%	1,706	3,517	5,264
Madison County	D	+17.2%	3,421	2,410	5,862
Mahaska County	R	−3.7%	4,451	4,798	9,320
Marion County	D	+7.8%	6,922	5,914	12,954
Marshall County	D	+12.0%	9,760	7,657	17,549
Mills County	R	−20.9%	2,092	3,212	5,369
Mitchell County	D	+10.1%	2,870	2,338	5,251
Monona County	D	+7.6%	2,408	2,068	4,491
Monroe County	D	+28.0%	2,338	1,313	3,667
Montgomery County	R	−24.9%	1,898	3,166	5,100
Muscatine County	D	+1.1%	7,059	6,904	14,102
O'Brien County	R	−20.8%	2,768	4,241	7,072
Osceola County	R	−20.6%	1,277	1,951	3,264
Page County	R	−35.2%	2,185	4,583	6,803
Palo Alto County	D	+24.5%	3,377	2,041	5,463
Plymouth County	R	−11.4%	4,220	5,316	9,607
Pocahontas County	D	+18.3%	2,722	1,871	4,652
Polk County	D	+18.6%	84,476	57,854	143,144
Pottawattamie County	R	−6.9%	14,958	17,193	32,405
Poweshiek County	D	+13.8%	4,876	3,683	8,625
Ringgold County	D	+18.3%	1,609	1,110	2,731
Sac County	D	+4.0%	2,613	2,411	5,077
Scott County	D	+5.1%	34,415	31,025	66,035
Shelby County	R	−3.6%	2,806	3,019	5,860
Sioux County	R	−55.3%	2,923	10,270	13,288
Story County	D	+15.9%	19,051	13,782	33,105
Tama County	D	+15.3%	4,584	3,362	8,012
Taylor County	D	+0.7%	1,671	1,647	3,332
Union County	D	+8.0%	3,236	2,751	6,041
Van Buren County	R	−2.4%	1,612	1,692	3,334
Wapello County	D	+30.8%	10,177	5,350	15,673
Warren County	D	+19.9%	9,627	6,424	16,131
Washington County	D	+0.5%	3,776	3,741	7,616
Wayne County	D	+15.0%	1,988	1,467	3,477
Webster County	D	+19.2%	10,267	6,926	17,393
Winnebago County	R	−1.0%	2,804	2,863	5,703
Winneshiek County	D	+2.9%	4,443	4,194	8,725
Woodbury County	D	+3.5%	20,153	18,790	39,225
Worth County	D	+23.9%	2,440	1,488	3,982
Wright County	D	+11.5%	3,353	2,658	6,054