George W. Bush carried Idaho R+38.1.

John Kerry (D) vs George W. Bush (R) in Idaho, 2004. The state ran 35.7 points more Republican than the nation (R+2.5 nationally). A US Senate contest shared the 2004 ballot here.

Nominees: John Kerry (D) · George W. Bush (R)

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Idaho result

598,447 votes counted

Kerry (D)

181,098

30.3%

Bush (R)

409,235

68.4%

All others

8,114

1.4%

Margin

R+38.1

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2004 presidential election

Idaho, 2004

BushR+38.1

How it voted

Share of the 2004 vote

George W. Bush ✓Republican	68.4%	409,235
John KerryDemocratic	30.3%	181,098
OtherAll other candidates	1.4%	8,114

D+60

R+60

44 counties, each filled by 2004 D-vs-R margin. Hover any county for its result.

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Idaho's presidential margins

1892–2024, the 2004 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 — 2004

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

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County	Won	Margin	Democratic	Republican	Total
Ada County	R	−23.3%	58,523	94,641	155,030
Adams County	R	−44.3%	555	1,468	2,063
Bannock County	R	−24.6%	12,903	21,479	34,844
Bear Lake County	R	−66.2%	494	2,506	3,040
Benewah County	R	−41.4%	1,148	2,823	4,050
Bingham County	R	−55.1%	3,605	12,734	16,565
Blaine County	D	+19.3%	5,992	4,034	10,147
Boise County	R	−43.4%	970	2,501	3,527
Bonner County	R	−22.9%	6,649	10,697	17,684
Bonneville County	R	−55.8%	8,356	30,048	38,871
Boundary County	R	−39.8%	1,268	3,012	4,379
Butte County	R	−53.8%	321	1,077	1,406
Camas County	R	−52.3%	139	450	595
Canyon County	R	−50.6%	13,415	41,599	55,698
Caribou County	R	−68.9%	491	2,753	3,281
Cassia County	R	−69.2%	1,153	6,562	7,821
Clark County	R	−72.5%	46	302	353
Clearwater County	R	−42.7%	1,117	2,839	4,034
Custer County	R	−51.0%	559	1,762	2,358
Elmore County	R	−50.3%	1,959	6,011	8,061
Franklin County	R	−80.6%	456	4,527	5,054
Fremont County	R	−73.2%	741	4,965	5,769
Gem County	R	−53.1%	1,628	5,416	7,134
Gooding County	R	−50.6%	1,278	3,973	5,325
Idaho County	R	−54.3%	1,689	6,017	7,970
Jefferson County	R	−74.3%	1,084	7,703	8,906
Jerome County	R	−58.3%	1,344	5,177	6,580
Kootenai County	R	−34.0%	17,584	36,173	54,603
Latah County	R	−1.5%	8,430	8,686	17,553
Lemhi County	R	−53.4%	915	3,079	4,055
Lewis County	R	−50.5%	440	1,359	1,820
Lincoln County	R	−49.1%	466	1,388	1,876
Madison County	R	−84.8%	826	10,693	11,637
Minidoka County	R	−62.0%	1,331	5,797	7,201
Nez Perce County	R	−25.6%	6,476	11,009	17,700
Oneida County	R	−69.6%	304	1,789	2,133
Owyhee County	R	−60.6%	685	2,859	3,590
Payette County	R	−53.9%	1,848	6,256	8,181
Power County	R	−43.1%	829	2,105	2,958
Shoshone County	R	−11.1%	2,331	2,922	5,337
Teton County	R	−22.2%	1,416	2,235	3,690
Twin Falls County	R	−50.0%	6,458	19,672	26,435
Valley County	R	−21.4%	1,843	2,863	4,774
Washington County	R	−51.4%	1,033	3,274	4,359