Ronald Reagan carried Montana R+22.3.

Walter Mondale (D) vs Ronald Reagan (R) in Montana, 1984. The state ran 4.1 points more Republican than the nation (R+18.2 nationally). A US Senate contest shared the 1984 ballot here.

Nominees: Walter Mondale (D) · Ronald Reagan (R)

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Montana result

384,377 votes counted

Mondale (D)

146,742

38.2%

Reagan (R)

232,450

60.5%

All others

5,185

1.3%

Margin

R+22.3

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1984 presidential election

Montana, 1984

ReaganR+22.3

How it voted

Share of the 1984 vote

Ronald Reagan ✓Republican	60.5%	232,450
Walter MondaleDemocratic	38.2%	146,742
OtherAll other candidates	1.3%	5,185

D+60

R+60

56 counties, each filled by 1984 D-vs-R margin. Hover any county for its result.

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Montana's presidential margins

1892–2024, the 1984 contest in context

Montana's presidential margins

Year	Margin (D minus R)
1892	−2.9%
1896	+60.2%
1900	+18.5%
1904	−20.4%
1908	−4.4%
1912	+11.8%
1916	+19.3%
1920	−29.1%
1924	−23.1%
1928	−17.9%
1932	+22.7%
1936	+41.7%
1940	+18.6%
1944	+9.4%
1948	+9.9%
1952	−19.3%
1956	−14.3%
1960	−2.5%
1964	+18.4%
1968	−9.0%
1972	−20.1%
1976	−7.4%
1980	−24.4%
1984	−22.3%
1988	−5.9%
1992	+2.5%
1996	−2.9%
2000	−25.1%
2004	−20.5%
2008	−2.4%
2012	−13.6%
2016	−20.2%
2020	−16.4%
2024	−19.9%

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County results — 1984

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

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County	Won	Margin	Democratic	Republican	Total
Beaverhead County	R	−52.1%	942	3,044	4,035
Big Horn County	D	+5.7%	2,681	2,390	5,110
Blaine County	R	−16.9%	1,229	1,736	2,997
Broadwater County	R	−48.5%	458	1,345	1,830
Carbon County	R	−26.6%	1,657	2,877	4,587
Carter County	R	−61.2%	194	823	1,028
Cascade County	R	−16.2%	14,252	19,846	34,505
Chouteau County	R	−45.5%	896	2,425	3,360
Custer County	R	−32.0%	1,982	3,879	5,919
Daniels County	R	−34.6%	473	984	1,477
Dawson County	R	−31.8%	1,776	3,468	5,314
Deer Lodge County	D	+29.8%	3,539	1,901	5,505
Fallon County	R	−36.5%	569	1,237	1,829
Fergus County	R	−43.1%	1,804	4,585	6,459
Flathead County	R	−33.7%	8,310	17,012	25,803
Gallatin County	R	−31.0%	8,163	15,643	24,140
Garfield County	R	−69.8%	134	770	911
Glacier County	R	−1.4%	2,167	2,228	4,435
Golden Valley County	R	−28.8%	211	384	600
Granite County	R	−35.0%	417	880	1,322
Hill County	R	−11.7%	3,657	4,635	8,390
Jefferson County	R	−24.9%	1,324	2,226	3,618
Judith Basin County	R	−36.6%	483	1,050	1,550
Lake County	R	−24.4%	3,473	5,754	9,348
Lewis and Clark County	R	−21.2%	8,768	13,569	22,626
Liberty County	R	−46.5%	323	895	1,229
Lincoln County	R	−15.6%	2,959	4,080	7,184
Madison County	R	−52.1%	708	2,308	3,069
McCone County	R	−37.1%	459	1,015	1,497
Meagher County	R	−45.7%	283	771	1,069
Mineral County	R	−13.2%	718	943	1,704
Missoula County	R	−8.8%	16,540	19,777	36,937
Musselshell County	R	−32.2%	781	1,541	2,359
Park County	R	−26.3%	2,387	4,115	6,581
Petroleum County	R	−49.6%	86	258	347
Phillips County	R	−41.7%	787	1,934	2,749
Pondera County	R	−36.2%	1,039	2,239	3,316
Powder River County	R	−50.4%	346	1,066	1,429
Powell County	R	−26.9%	1,066	1,877	3,012
Prairie County	R	−40.8%	289	693	991
Ravalli County	R	−35.7%	3,825	8,161	12,154
Richland County	R	−46.7%	1,382	3,847	5,281
Roosevelt County	R	−10.5%	1,962	2,431	4,464
Rosebud County	R	−11.2%	1,920	2,413	4,402
Sanders County	R	−19.3%	1,654	2,467	4,204
Sheridan County	R	−23.9%	1,087	1,774	2,879
Silver Bow County	D	+24.8%	11,095	6,637	18,010
Stillwater County	R	−31.2%	1,100	2,118	3,258
Sweet Grass County	R	−57.6%	378	1,417	1,803
Teton County	R	−34.1%	1,102	2,257	3,384
Toole County	R	−41.9%	789	1,949	2,768
Treasure County	R	−25.0%	209	353	576
Valley County	R	−25.2%	1,849	3,123	5,046
Wheatland County	R	−29.5%	407	753	1,173
Wibaux County	R	−31.8%	216	423	651
Yellowstone County	R	−27.1%	19,437	34,124	54,153