Warren G. Harding carried Idaho R+31.3.

James M. Cox (D) vs Warren G. Harding (R) in Idaho, 1920. The state ran 5.1 points more Republican than the nation (R+26.2 nationally).

Nominees: James M. Cox (D) · Warren G. Harding (R)

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Idaho result

135,624 votes counted

Cox (D)

46,579

34.3%

Harding (R)

88,975

65.6%

All others

70

0.1%

Margin

R+31.3

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1920 presidential election

Idaho, 1920

HardingR+31.3

How it voted

Share of the 1920 vote

Warren G. Harding ✓Republican	65.6%	88,975
James M. CoxDemocratic	34.3%	46,579
OtherAll other candidates	0.1%	70

D+60

R+60

44 counties, each filled by 1920 D-vs-R margin. Hover any county for its result.

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Idaho's presidential margins

1892–2024, the 1920 contest in context

Idaho's presidential margins

Year	Margin (D minus R)
1892	−44.2%
1896	+56.8%
1900	+3.8%
1904	−40.4%
1908	−16.9%
1912	+1.1%
1916	+10.9%
1920	−31.3%
1924	−30.8%
1928	−29.3%
1932	+20.4%
1936	+29.8%
1940	+9.1%
1944	+3.5%
1948	+2.7%
1952	−31.0%
1956	−22.4%
1960	−7.6%
1964	+1.8%
1968	−26.1%
1972	−38.2%
1976	−22.8%
1980	−41.3%
1984	−46.0%
1988	−26.1%
1992	−13.6%
1996	−18.5%
2000	−39.5%
2004	−38.1%
2008	−25.4%
2012	−31.9%
2016	−31.8%
2020	−30.8%
2024	−36.5%

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County results — 1920

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

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County	Won	Margin	Democratic	Republican	Total
Ada County	R	−33.6%	4,173	8,419	12,619
Adams County	R	−27.2%	390	682	1,072
Bannock County	R	−24.0%	2,986	4,871	7,857
Bear Lake County	R	−23.3%	1,138	1,831	2,969
Benewah County	R	−26.0%	794	1,351	2,145
Bingham County	R	−47.1%	1,184	3,293	4,477
Blaine County	R	−35.1%	561	1,169	1,730
Boise County	R	−22.4%	373	588	961
Bonner County	R	−20.3%	1,468	2,217	3,685
Bonneville County	R	−39.3%	1,419	3,260	4,679
Boundary County	R	−25.4%	525	883	1,408
Butte County	R	−34.3%	316	646	962
Camas County	R	−18.3%	276	400	677
Canyon County	R	−25.1%	3,375	5,633	9,008
Caribou County	R	−49.9%	181	541	722
Cassia County	R	−39.1%	1,178	2,690	3,868
Clark County	R	−52.6%	184	594	779
Clearwater County	R	−32.5%	482	947	1,430
Custer County	R	−34.4%	394	808	1,202
Elmore County	R	−10.2%	867	1,065	1,932
Franklin County	R	−28.4%	899	1,612	2,511
Fremont County	R	−30.5%	1,061	1,994	3,055
Gem County	R	−25.6%	832	1,404	2,238
Gooding County	R	−40.8%	789	1,878	2,667
Idaho County	R	−35.8%	1,128	2,386	3,514
Jefferson County	R	−41.5%	741	1,794	2,535
Jerome County	R	−37.8%	784	1,738	2,522
Kootenai County	R	−31.9%	1,818	3,518	5,336
Latah County	R	−42.2%	1,568	3,855	5,423
Lemhi County	R	−29.6%	699	1,289	1,992
Lewis County	R	−17.4%	712	1,013	1,732
Lincoln County	R	−27.7%	427	755	1,182
Madison County	R	−31.6%	979	1,883	2,862
Minidoka County	R	−18.8%	1,107	1,622	2,745
Nez Perce County	R	−28.1%	1,548	2,761	4,311
Oneida County	R	−33.2%	752	1,500	2,252
Owyhee County	R	−30.7%	515	971	1,486
Payette County	R	−36.4%	785	1,690	2,484
Power County	R	−34.6%	561	1,155	1,716
Shoshone County	R	−28.5%	1,733	3,112	4,845
Teton County	R	−37.8%	409	906	1,315
Twin Falls County	R	−34.3%	2,882	5,894	8,776
Valley County	R	−21.0%	322	493	815
Washington County	R	−19.2%	1,264	1,864	3,128