Mitt Romney carried Idaho R+31.9.

Barack Obama (D) vs Mitt Romney (R) in Idaho, 2012. The state ran 35.8 points more Republican than the nation (D+3.9 nationally).

Nominees: Barack Obama (D) · Mitt Romney (R)

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Idaho result

652,274 votes counted

Obama (D)

212,787

32.6%

Romney (R)

420,911

64.5%

All others

18,576

2.8%

Margin

R+31.9

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2012 presidential election

Idaho, 2012

RomneyR+31.9

How it voted

Share of the 2012 vote

Mitt Romney ✓Republican	64.5%	420,911
Barack ObamaDemocratic	32.6%	212,787
OtherAll other candidates	2.8%	18,576

D+60

R+60

44 counties, each filled by 2012 D-vs-R margin. Hover any county for its result.

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Idaho's presidential margins

1892–2024, the 2012 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 — 2012

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

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County	Won	Margin	Democratic	Republican	Total
Ada County	R	−11.3%	77,137	97,554	180,546
Adams County	R	−40.6%	577	1,413	2,060
Bannock County	R	−22.1%	13,214	21,010	35,260
Bear Lake County	R	−77.5%	302	2,489	2,822
Benewah County	R	−36.9%	1,164	2,596	3,884
Bingham County	R	−54.6%	3,822	13,440	17,603
Blaine County	D	+20.1%	5,992	3,939	10,194
Boise County	R	−35.7%	1,053	2,284	3,445
Bonner County	R	−26.3%	6,500	11,367	18,536
Bonneville County	R	−51.8%	9,903	32,276	43,213
Boundary County	R	−42.1%	1,225	3,138	4,544
Butte County	R	−57.8%	258	1,001	1,286
Camas County	R	−42.0%	159	402	578
Canyon County	R	−37.1%	19,866	44,369	66,090
Caribou County	R	−72.8%	386	2,608	3,052
Cassia County	R	−72.1%	1,098	7,154	8,396
Clark County	R	−51.5%	66	235	328
Clearwater County	R	−40.8%	1,032	2,541	3,696
Custer County	R	−51.6%	530	1,744	2,352
Elmore County	R	−33.9%	2,513	5,227	8,001
Franklin County	R	−87.0%	325	5,195	5,600
Fremont County	R	−70.6%	810	4,907	5,802
Gem County	R	−44.8%	1,957	5,311	7,490
Gooding County	R	−47.1%	1,287	3,696	5,118
Idaho County	R	−53.8%	1,708	5,921	7,837
Jefferson County	R	−75.5%	1,303	9,895	11,381
Jerome County	R	−46.5%	1,699	4,804	6,681
Kootenai County	R	−34.3%	18,851	39,381	59,828
Latah County	D	+4.3%	8,306	7,589	16,759
Lemhi County	R	−50.3%	960	3,029	4,110
Lewis County	R	−48.1%	396	1,173	1,614
Lincoln County	R	−40.4%	469	1,141	1,662
Madison County	R	−87.5%	832	13,445	14,412
Minidoka County	R	−58.1%	1,390	5,442	6,973
Nez Perce County	R	−20.9%	6,451	9,967	16,848
Oneida County	R	−77.6%	217	1,838	2,089
Owyhee County	R	−52.7%	833	2,794	3,724
Payette County	R	−43.9%	2,271	6,004	8,495
Power County	R	−30.6%	982	1,870	2,903
Shoshone County	R	−8.2%	2,277	2,699	5,148
Teton County	R	−11.8%	1,926	2,458	4,523
Twin Falls County	R	−43.5%	7,541	19,773	28,142
Valley County	R	−11.6%	2,095	2,664	4,919
Washington County	R	−46.7%	1,104	3,128	4,330