Richard Nixon carried Iowa R+12.2.

Hubert Humphrey (D) vs Richard Nixon (R) in Iowa, 1968. The state ran 11.5 points more Republican than the nation (R+0.7 nationally).

Nominees: Hubert Humphrey (D) · Richard Nixon (R) · George Wallace (American Independent)

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Iowa result

1,167,931 votes counted

Humphrey (D)

476,699

40.8%

Nixon (R)

619,106

53.0%

Wallace + others

72,126

6.2%

Margin

R+12.2

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1968 presidential election

Iowa, 1968

NixonR+12.2

How it voted

Share of the 1968 vote

Richard Nixon ✓Republican	53.0%	619,106
Hubert HumphreyDemocratic	40.8%	476,699
George WallaceAmerican Independent	6.2%	72,126

D+60

R+60

99 counties, each filled by 1968 D-vs-R margin. Hover any county for its result.

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Iowa's presidential margins

1892–2024, the 1968 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 — 1968

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

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County	Won	Margin	Democratic	Republican	Total
Adair County	R	−26.8%	1,559	2,789	4,586
Adams County	R	−28.0%	993	1,868	3,128
Allamakee County	R	−31.0%	2,245	4,449	7,110
Appanoose County	R	−7.0%	3,005	3,497	7,053
Audubon County	R	−19.6%	1,710	2,592	4,504
Benton County	R	−11.1%	3,944	5,016	9,635
Black Hawk County	R	−9.1%	21,097	25,594	49,554
Boone County	R	−0.4%	5,219	5,260	11,096
Bremer County	R	−36.6%	2,481	5,604	8,523
Buchanan County	R	−10.0%	3,670	4,541	8,674
Buena Vista County	R	−28.2%	3,051	5,599	9,050
Butler County	R	−45.2%	1,673	4,651	6,589
Calhoun County	R	−21.0%	2,361	3,715	6,458
Carroll County	D	+9.6%	4,809	3,927	9,202
Cass County	R	−39.8%	2,136	5,223	7,761
Cedar County	R	−23.9%	2,675	4,494	7,614
Cerro Gordo County	R	−10.4%	8,554	10,661	20,310
Cherokee County	R	−23.1%	2,705	4,436	7,496
Chickasaw County	R	−8.0%	2,966	3,510	6,764
Clarke County	R	−10.1%	1,655	2,059	4,000
Clay County	R	−19.5%	2,840	4,325	7,628
Clayton County	R	−22.1%	3,168	5,132	8,878
Clinton County	R	−9.0%	9,515	11,513	22,175
Crawford County	R	−18.5%	2,851	4,287	7,744
Dallas County	R	−4.3%	5,062	5,549	11,287
Davis County	R	−2.6%	1,904	2,016	4,278
Decatur County	R	−4.4%	2,057	2,261	4,588
Delaware County	R	−24.1%	2,760	4,650	7,829
Des Moines County	D	+8.6%	10,164	8,452	19,979
Dickinson County	R	−19.3%	2,286	3,472	6,151
Dubuque County	D	+12.8%	18,664	14,197	34,863
Emmet County	R	−21.9%	2,163	3,444	5,847
Fayette County	R	−24.3%	4,098	6,935	11,687
Floyd County	R	−22.3%	2,971	4,792	8,178
Franklin County	R	−32.2%	1,777	3,604	5,677
Fremont County	R	−21.1%	1,484	2,385	4,270
Greene County	R	−17.4%	2,208	3,208	5,736
Grundy County	R	−46.7%	1,675	4,866	6,840
Guthrie County	R	−22.3%	2,063	3,346	5,751
Hamilton County	R	−19.4%	3,058	4,607	8,001
Hancock County	R	−23.8%	2,131	3,544	5,949
Hardin County	R	−22.8%	3,227	5,308	9,134
Harrison County	R	−21.3%	2,410	3,867	6,825
Henry County	R	−27.2%	2,532	4,613	7,659
Howard County	R	−12.4%	2,420	3,141	5,827
Humboldt County	R	−24.0%	1,940	3,239	5,410
Ida County	R	−29.2%	1,463	2,753	4,425
Iowa County	R	−21.8%	2,586	4,133	7,111
Jackson County	R	−13.1%	3,413	4,535	8,553
Jasper County	R	−8.8%	6,556	7,901	15,255
Jefferson County	R	−24.8%	2,411	4,130	6,939
Johnson County	D	+8.3%	13,541	11,384	25,944
Jones County	R	−13.1%	3,415	4,513	8,412
Keokuk County	R	−11.6%	2,807	3,588	6,737
Kossuth County	R	−9.5%	4,392	5,350	10,089
Lee County	R	−4.5%	8,076	8,883	18,036
Linn County	R	−1.6%	29,898	30,918	64,430
Louisa County	R	−20.0%	1,632	2,529	4,484
Lucas County	R	−12.6%	1,942	2,543	4,782
Lyon County	R	−48.5%	1,403	4,195	5,754
Madison County	R	−16.9%	2,192	3,151	5,679
Mahaska County	R	−19.5%	3,721	5,670	9,970
Marion County	R	−10.6%	4,618	5,791	11,062
Marshall County	R	−18.2%	6,362	9,402	16,686
Mills County	R	−36.4%	1,216	2,916	4,672
Mitchell County	R	−24.5%	2,103	3,533	5,830
Monona County	R	−14.2%	2,184	2,980	5,610
Monroe County	D	+2.1%	2,240	2,143	4,705
Montgomery County	R	−34.9%	1,892	4,155	6,481
Muscatine County	R	−20.5%	4,726	7,361	12,874
O'Brien County	R	−42.7%	2,146	5,594	8,068
Osceola County	R	−26.7%	1,420	2,516	4,102
Page County	R	−43.5%	2,128	5,907	8,679
Palo Alto County	R	−3.9%	2,874	3,114	6,223
Plymouth County	R	−29.9%	3,234	6,236	10,037
Pocahontas County	R	−10.3%	2,364	2,940	5,594
Polk County	D	+0.8%	52,731	51,814	114,784
Pottawattamie County	R	−23.0%	9,495	16,038	28,399
Poweshiek County	R	−15.0%	3,250	4,470	8,112
Ringgold County	R	−21.5%	1,237	1,986	3,481
Sac County	R	−29.6%	2,207	4,182	6,676
Scott County	R	−2.2%	24,596	25,783	55,018
Shelby County	R	−23.0%	2,365	3,886	6,626
Sioux County	R	−62.6%	2,181	10,010	12,507
Story County	R	−16.4%	9,456	13,327	23,675
Tama County	R	−12.8%	3,767	4,955	9,253
Taylor County	R	−27.3%	1,501	2,765	4,636
Union County	R	−20.8%	2,137	3,365	5,898
Van Buren County	R	−24.9%	1,331	2,294	3,869
Wapello County	D	+8.3%	9,375	7,825	18,647
Warren County	R	−9.0%	4,613	5,619	11,171
Washington County	R	−27.9%	2,679	4,899	7,943
Wayne County	R	−18.2%	1,723	2,553	4,573
Webster County	R	−4.1%	8,572	9,349	19,097
Winnebago County	R	−23.2%	2,163	3,543	5,954
Winneshiek County	R	−24.0%	3,364	5,600	9,319
Woodbury County	R	−6.9%	18,281	21,159	41,803
Worth County	R	−12.9%	1,815	2,383	4,420
Wright County	R	−17.6%	2,969	4,299	7,549