Ronald Reagan carried Missouri R+20.0.

Walter Mondale (D) vs Ronald Reagan (R) in Missouri, 1984. The state ran 1.8 points more Republican than the nation (R+18.2 nationally).

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

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Missouri result

2,122,771 votes counted

Mondale (D)

848,583

40.0%

Reagan (R)

1,274,188

60.0%

All others

0

0.0%

Margin

R+20.0

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1984 presidential election

Missouri, 1984

ReaganR+20.0

How it voted

Share of the 1984 vote

Ronald Reagan ✓Republican	60.0%	1,274,188
Walter MondaleDemocratic	40.0%	848,583
OtherAll other candidates	0.0%	0

D+60

R+60

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

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Missouri's presidential margins

1892–2024, the 1984 contest in context

Missouri's presidential margins

Year	Margin (D minus R)
1892	+7.5%
1896	+8.7%
1900	+5.5%
1904	−3.9%
1908	−0.1%
1912	+17.6%
1916	+3.6%
1920	−11.5%
1924	−5.6%
1928	−11.4%
1932	+28.6%
1936	+22.6%
1940	+4.8%
1944	+2.9%
1948	+16.6%
1952	−1.6%
1956	+0.2%
1960	+0.5%
1964	+28.1%
1968	−1.1%
1972	−24.7%
1976	+3.6%
1980	−6.8%
1984	−20.0%
1988	−4.0%
1992	+10.1%
1996	+6.3%
2000	−3.3%
2004	−7.2%
2008	−0.1%
2012	−9.4%
2016	−18.5%
2020	−15.3%
2024	−18.4%

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County results — 1984

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

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County	Won	Margin	Democratic	Republican	Total
Adair County	R	−34.7%	3,119	6,430	9,549
Andrew County	R	−26.8%	2,457	4,252	6,709
Atchison County	R	−30.3%	1,219	2,277	3,496
Audrain County	R	−21.8%	4,662	7,261	11,923
Barry County	R	−37.6%	3,483	7,683	11,166
Barton County	R	−49.6%	1,348	3,996	5,344
Bates County	R	−18.8%	2,889	4,223	7,112
Benton County	R	−25.7%	2,251	3,805	6,056
Bollinger County	R	−18.2%	1,923	2,778	4,701
Boone County	R	−15.7%	19,364	26,600	45,964
Buchanan County	R	−12.4%	15,369	19,735	35,104
Butler County	R	−29.9%	4,699	8,712	13,411
Caldwell County	R	−31.9%	1,382	2,678	4,060
Callaway County	R	−31.3%	4,327	8,262	12,589
Camden County	R	−44.6%	3,088	8,057	11,145
Cape Girardeau County	R	−40.6%	7,346	17,404	24,750
Carroll County	R	−27.7%	1,980	3,495	5,475
Carter County	R	−21.0%	916	1,402	2,318
Cass County	R	−31.6%	7,517	14,456	21,973
Cedar County	R	−42.2%	1,440	3,539	4,979
Chariton County	R	−10.0%	2,244	2,744	4,988
Christian County	R	−40.6%	3,223	7,634	10,857
Clark County	R	−11.9%	1,627	2,068	3,695
Clay County	R	−23.6%	22,586	36,529	59,115
Clinton County	R	−20.7%	2,778	4,226	7,004
Cole County	R	−50.5%	6,702	20,366	27,068
Cooper County	R	−34.9%	2,219	4,603	6,822
Crawford County	R	−28.7%	2,610	4,716	7,326
Dade County	R	−40.5%	1,100	2,600	3,700
Dallas County	R	−30.6%	1,902	3,577	5,479
Daviess County	R	−22.5%	1,526	2,414	3,940
DeKalb County	R	−19.8%	1,464	2,188	3,652
Dent County	R	−15.7%	2,544	3,490	6,034
Douglas County	R	−40.9%	1,536	3,662	5,198
Dunklin County	R	−10.2%	4,967	6,092	11,059
Franklin County	R	−38.4%	8,319	18,669	26,988
Gasconade County	R	−61.1%	1,130	4,678	5,808
Gentry County	R	−12.3%	1,600	2,047	3,647
Greene County	R	−34.4%	27,965	57,250	85,215
Grundy County	R	−25.8%	1,861	3,156	5,017
Harrison County	R	−26.6%	1,649	2,844	4,493
Henry County	R	−18.3%	3,741	5,419	9,160
Hickory County	R	−28.7%	1,212	2,190	3,402
Holt County	R	−34.1%	1,026	2,087	3,113
Howard County	R	−7.9%	2,014	2,360	4,374
Howell County	R	−37.1%	3,767	8,204	11,971
Iron County	R	−6.8%	2,023	2,316	4,339
Jackson County	D	+1.0%	135,067	132,271	267,338
Jasper County	R	−42.7%	9,259	23,066	32,325
Jefferson County	R	−26.6%	20,026	34,525	54,551
Johnson County	R	−33.0%	4,238	8,413	12,651
Knox County	R	−15.9%	1,097	1,513	2,610
Laclede County	R	−41.2%	2,665	6,406	9,071
Lafayette County	R	−27.8%	4,848	8,581	13,429
Lawrence County	R	−38.5%	3,720	8,370	12,090
Lewis County	R	−10.4%	1,977	2,438	4,415
Lincoln County	R	−30.2%	3,290	6,137	9,427
Linn County	R	−10.2%	3,112	3,822	6,934
Livingston County	R	−20.5%	2,699	4,090	6,789
Macon County	R	−19.9%	3,037	4,542	7,579
Madison County	R	−20.3%	1,862	2,808	4,670
Maries County	R	−24.0%	1,388	2,267	3,655
Marion County	R	−18.8%	4,666	6,831	11,497
McDonald County	R	−36.4%	2,109	4,521	6,630
Mercer County	R	−16.8%	875	1,229	2,104
Miller County	R	−53.1%	2,054	6,706	8,760
Mississippi County	D	+0.4%	2,524	2,502	5,026
Moniteau County	R	−44.5%	1,614	4,197	5,811
Monroe County	R	−4.1%	1,992	2,163	4,155
Montgomery County	R	−32.3%	1,668	3,261	4,929
Morgan County	R	−33.9%	2,169	4,392	6,561
New Madrid County	R	−6.8%	3,776	4,323	8,099
Newton County	R	−43.4%	4,623	11,709	16,332
Nodaway County	R	−20.4%	3,615	5,471	9,086
Oregon County	D	+1.2%	2,026	1,979	4,005
Osage County	R	−53.1%	1,343	4,381	5,724
Ozark County	R	−40.4%	1,110	2,614	3,724
Pemiscot County	R	−6.3%	3,293	3,733	7,026
Perry County	R	−42.0%	1,837	4,493	6,330
Pettis County	R	−34.0%	5,413	10,991	16,404
Phelps County	R	−28.0%	5,074	9,012	14,086
Pike County	R	−8.6%	3,313	3,933	7,246
Platte County	R	−25.3%	7,668	12,859	20,527
Polk County	R	−32.0%	2,819	5,467	8,286
Pulaski County	R	−30.1%	2,865	5,330	8,195
Putnam County	R	−31.8%	797	1,540	2,337
Ralls County	R	−1.4%	2,011	2,067	4,078
Randolph County	R	−12.4%	4,471	5,735	10,206
Ray County	R	−10.1%	3,979	4,875	8,854
Reynolds County	D	+20.7%	2,026	1,330	3,356
Ripley County	R	−21.7%	1,883	2,927	4,810
Saline County	R	−17.1%	4,281	6,042	10,323
Schuyler County	R	−4.6%	1,141	1,250	2,391
Scotland County	R	−16.0%	1,075	1,485	2,560
Scott County	R	−22.1%	5,569	8,727	14,296
Shannon County	R	−5.9%	1,580	1,779	3,359
Shelby County	R	−17.6%	1,573	2,243	3,816
St. Charles County	R	−46.1%	17,617	47,784	65,401
St. Clair County	R	−23.4%	1,655	2,667	4,322
St. Francois County	R	−15.7%	7,137	9,792	16,929
St. Louis city	D	+29.6%	112,318	61,020	173,338
St. Louis County	R	−28.0%	173,144	307,684	480,828
Ste. Genevieve County	R	−8.7%	2,723	3,245	5,968
Stoddard County	R	−21.9%	4,294	6,701	10,995
Stone County	R	−45.8%	2,119	5,706	7,825
Sullivan County	R	−12.8%	1,784	2,306	4,090
Taney County	R	−41.7%	2,912	7,082	9,994
Texas County	R	−20.8%	3,662	5,591	9,253
Vernon County	R	−26.9%	2,984	5,181	8,165
Warren County	R	−44.8%	1,964	5,150	7,114
Washington County	R	−11.4%	2,987	3,755	6,742
Wayne County	R	−9.6%	2,363	2,867	5,230
Webster County	R	−29.9%	2,982	5,529	8,511
Worth County	R	−11.3%	734	921	1,655
Wright County	R	−40.8%	1,973	4,687	6,660