Donald Trump carried Idaho R+30.8.

Joe Biden (D) vs Donald Trump (R) in Idaho, 2020. The state ran 35.2 points more Republican than the nation (D+4.5 nationally). A US Senate contest shared the 2020 ballot here.

Nominees: Joe Biden (D) · Donald Trump (R)

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Idaho result

867,957 votes counted

Biden (D)

287,021

33.1%

Trump (R)

554,119

63.8%

All others

26,817

3.1%

Margin

R+30.8

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2020 presidential election

Idaho, 2020

TrumpR+30.8

How it voted

Share of the 2020 vote

Donald Trump ✓Republican	63.8%	554,119
Joe BidenDemocratic	33.1%	287,021
Jo JorgensenLibertarian	3.1%	26,817

D+60

R+60

44 counties, each filled by 2020 D-vs-R margin. Hover any county for its result.

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Idaho's presidential margins

1892–2024, the 2020 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 — 2020

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

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County	Won	Margin	Democratic	Republican	Total
Ada County	R	−3.9%	120,539	130,699	259,700
Adams County	R	−52.2%	591	1,941	2,586
Bannock County	R	−21.7%	14,682	23,331	39,783
Bear Lake County	R	−77.3%	350	2,914	3,315
Benewah County	R	−58.3%	977	3,878	4,973
Bingham County	R	−55.9%	4,124	15,295	19,996
Blaine County	D	+36.8%	8,919	4,032	13,289
Boise County	R	−47.3%	1,204	3,485	4,820
Bonner County	R	−36.8%	8,310	18,369	27,352
Bonneville County	R	−43.6%	14,254	37,805	54,034
Boundary County	R	−58.9%	1,220	4,937	6,313
Butte County	R	−71.7%	188	1,202	1,415
Camas County	R	−47.5%	149	507	754
Canyon County	R	−39.7%	25,881	61,759	90,410
Caribou County	R	−72.5%	431	2,906	3,416
Cassia County	R	−66.9%	1,464	7,907	9,629
Clark County	R	−71.7%	41	264	311
Clearwater County	R	−58.3%	877	3,453	4,419
Custer County	R	−54.3%	603	2,089	2,737
Elmore County	R	−45.5%	2,601	7,246	10,205
Franklin County	R	−77.9%	657	5,845	6,664
Fremont County	R	−67.7%	998	5,548	6,719
Gem County	R	−61.7%	1,803	7,951	9,958
Gooding County	R	−56.2%	1,256	4,659	6,050
Idaho County	R	−65.2%	1,561	7,826	9,602
Jefferson County	R	−73.6%	1,661	12,099	14,173
Jerome County	R	−49.2%	1,893	5,734	7,812
Kootenai County	R	−43.1%	24,312	62,837	89,467
Latah County	D	+3.7%	10,236	9,472	20,570
Lemhi County	R	−54.0%	1,032	3,592	4,738
Lewis County	R	−61.0%	349	1,489	1,870
Lincoln County	R	−54.4%	414	1,469	1,941
Madison County	R	−63.7%	2,666	13,559	17,112
Minidoka County	R	−59.0%	1,550	6,265	7,993
Nez Perce County	R	−33.6%	6,686	13,738	20,967
Oneida County	R	−77.5%	249	2,148	2,451
Owyhee County	R	−63.3%	816	3,819	4,742
Payette County	R	−59.3%	2,161	8,862	11,293
Power County	R	−40.7%	865	2,116	3,074
Shoshone County	R	−41.7%	1,693	4,216	6,049
Teton County	D	+7.2%	3,318	2,858	6,347
Twin Falls County	R	−45.2%	9,391	25,897	36,501
Valley County	R	−13.7%	2,976	3,947	7,063
Washington County	R	−57.7%	1,073	4,154	5,344