Ronald Reagan carried Idaho R+41.3.

Jimmy Carter (D) vs Ronald Reagan (R) in Idaho, 1980. The state ran 31.5 points more Republican than the nation (R+9.7 nationally). A US Senate contest shared the 1980 ballot here.

Nominees: Jimmy Carter (D) · Ronald Reagan (R)

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Idaho result

437,431 votes counted

Carter (D)

110,192

25.2%

Reagan (R)

290,699

66.5%

All others

36,540

8.4%

Margin

R+41.3

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1980 presidential election

Idaho, 1980

ReaganR+41.3

How it voted

Share of the 1980 vote

Ronald Reagan ✓Republican	66.5%	290,699
Jimmy CarterDemocratic	25.2%	110,192
John B. AndersonIndependent	8.4%	36,540

D+60

R+60

44 counties, each filled by 1980 D-vs-R margin. Hover any county for its result.

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Idaho's presidential margins

1892–2024, the 1980 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 — 1980

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

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County	Won	Margin	Democratic	Republican	Total
Ada County	R	−39.1%	21,324	55,205	86,544
Adams County	R	−31.6%	590	1,189	1,897
Bannock County	R	−32.9%	8,639	18,477	29,859
Bear Lake County	R	−68.2%	508	2,941	3,567
Benewah County	R	−19.5%	1,361	2,111	3,846
Bingham County	R	−57.1%	2,933	11,781	15,487
Blaine County	R	−15.8%	1,840	2,716	5,529
Boise County	R	−33.4%	518	1,134	1,846
Bonner County	R	−22.3%	4,060	6,727	11,940
Bonneville County	R	−61.7%	5,052	24,715	31,869
Boundary County	R	−28.5%	1,087	2,088	3,513
Butte County	R	−48.2%	424	1,275	1,765
Camas County	R	−40.6%	145	360	530
Canyon County	R	−42.2%	9,172	24,375	36,016
Caribou County	R	−70.7%	481	3,234	3,892
Cassia County	R	−62.3%	1,369	6,511	8,259
Clark County	R	−60.5%	87	379	483
Clearwater County	R	−11.1%	1,699	2,178	4,314
Custer County	R	−52.6%	398	1,398	1,902
Elmore County	R	−36.3%	1,760	3,994	6,157
Franklin County	R	−73.4%	511	3,669	4,301
Fremont County	R	−61.7%	926	4,167	5,253
Gem County	R	−37.6%	1,613	3,766	5,726
Gooding County	R	−42.4%	1,481	3,897	5,695
Idaho County	R	−33.2%	2,078	4,425	7,073
Jefferson County	R	−72.5%	833	5,860	6,933
Jerome County	R	−54.2%	1,368	4,962	6,625
Kootenai County	R	−35.3%	7,521	17,022	26,912
Latah County	R	−13.0%	5,037	6,967	14,892
Lemhi County	R	−50.1%	794	2,646	3,699
Lewis County	R	−15.3%	774	1,088	2,053
Lincoln County	R	−44.4%	462	1,294	1,872
Madison County	R	−78.6%	728	6,555	7,414
Minidoka County	R	−53.4%	1,689	6,035	8,131
Nez Perce County	R	−5.9%	6,565	7,495	15,744
Oneida County	R	−52.1%	434	1,461	1,970
Owyhee County	R	−48.6%	732	2,257	3,140
Payette County	R	−39.9%	1,828	4,508	6,714
Power County	R	−48.0%	727	2,235	3,143
Shoshone County	R	−11.6%	3,102	3,994	7,675
Teton County	R	−51.4%	360	1,227	1,686
Twin Falls County	R	−53.1%	4,835	17,425	23,708
Valley County	R	−34.1%	926	2,041	3,272
Washington County	R	−32.6%	1,421	2,915	4,585