Ronald Reagan carried Pennsylvania R+7.4.

Walter Mondale (D) vs Ronald Reagan (R) in Pennsylvania, 1984. The state ran 10.9 points more Democratic than the nation (R+18.2 nationally).

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

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Pennsylvania result

4,844,903 votes counted

Mondale (D)

2,228,131

46.0%

Reagan (R)

2,584,323

53.3%

All others

32,449

0.7%

Margin

R+7.4

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1984 presidential election

Pennsylvania, 1984

ReaganR+7.4

How it voted

Share of the 1984 vote

Ronald Reagan ✓Republican	53.3%	2,584,323
Walter MondaleDemocratic	46.0%	2,228,131
OtherAll other candidates	0.7%	32,449

D+60

R+60

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

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Pennsylvania's presidential margins

1892–2024, the 1984 contest in context

Pennsylvania's presidential margins

Year	Margin (D minus R)
1892	−6.4%
1896	−24.7%
1900	−24.6%
1904	−40.7%
1908	−23.4%
1912	+10.0%
1916	−14.0%
1920	−38.6%
1924	−46.3%
1928	−31.4%
1932	−5.5%
1936	+16.0%
1940	+6.9%
1944	+2.8%
1948	−4.0%
1952	−5.9%
1956	−13.2%
1960	+2.3%
1964	+30.2%
1968	+3.6%
1972	−20.0%
1976	+2.7%
1980	−7.1%
1984	−7.4%
1988	−2.3%
1992	+9.0%
1996	+9.2%
2000	+4.2%
2004	+2.5%
2008	+10.3%
2012	+5.4%
2016	−0.7%
2020	+1.2%
2024	−1.7%

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County results — 1984

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

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County	Won	Margin	Democratic	Republican	Total
Adams County	R	−39.3%	7,289	16,786	24,174
Allegheny County	D	+13.2%	372,576	284,692	665,748
Armstrong County	D	+2.9%	14,525	13,709	28,344
Beaver County	D	+26.1%	54,765	32,052	87,117
Bedford County	R	−41.3%	5,424	13,085	18,543
Berks County	R	−32.5%	37,849	74,605	113,145
Blair County	R	−31.5%	15,651	30,104	45,945
Bradford County	R	−45.8%	5,474	14,808	20,367
Bucks County	R	−27.0%	74,568	130,119	205,719
Butler County	R	−12.3%	24,735	31,676	56,626
Cambria County	D	+10.6%	39,865	32,173	72,296
Cameron County	R	−34.4%	990	2,031	3,029
Carbon County	R	−9.5%	8,836	10,701	19,668
Centre County	R	−26.2%	16,194	27,802	44,236
Chester County	R	−40.6%	38,870	92,221	131,531
Clarion County	R	−28.9%	5,407	9,836	15,304
Clearfield County	R	−21.7%	11,963	18,653	30,769
Clinton County	R	−19.1%	4,525	6,678	11,273
Columbia County	R	−27.1%	8,254	14,402	22,718
Crawford County	R	−22.3%	12,792	20,181	33,195
Cumberland County	R	−39.2%	21,374	49,282	71,123
Dauphin County	R	−23.4%	33,576	54,330	88,658
Delaware County	R	−24.3%	98,207	161,754	261,782
Elk County	R	−21.3%	5,486	8,470	14,007
Erie County	R	−3.1%	52,471	55,860	109,266
Fayette County	D	+24.4%	35,098	21,314	56,547
Forest County	R	−27.1%	839	1,468	2,317
Franklin County	R	−40.6%	11,480	27,243	38,845
Fulton County	R	−42.5%	1,309	3,254	4,574
Greene County	D	+18.9%	9,365	6,376	15,784
Huntingdon County	R	−39.4%	4,430	10,220	14,691
Indiana County	R	−8.8%	15,791	18,845	34,759
Jefferson County	R	−31.0%	5,950	11,334	17,355
Juniata County	R	−31.6%	2,624	5,059	7,705
Lackawanna County	R	−2.4%	45,851	48,132	95,185
Lancaster County	R	−51.7%	31,308	99,090	131,016
Lawrence County	D	+10.8%	23,981	19,277	43,386
Lebanon County	R	−43.7%	10,520	27,008	37,716
Lehigh County	R	−20.0%	41,089	61,799	103,537
Luzerne County	R	−8.3%	58,482	69,169	129,291
Lycoming County	R	−36.6%	13,147	28,498	41,895
McKean County	R	−38.8%	4,818	10,963	15,839
Mercer County	D	+0.9%	24,658	24,211	49,303
Mifflin County	R	−27.3%	5,178	9,106	14,373
Monroe County	R	−32.3%	8,193	16,109	24,474
Montgomery County	R	−28.9%	99,741	181,426	282,666
Montour County	R	−33.9%	2,055	4,174	6,248
Northampton County	R	−8.0%	37,979	44,648	83,467
Northumberland County	R	−23.1%	13,748	22,109	36,165
Perry County	R	−43.3%	3,692	9,365	13,113
Philadelphia County	D	+30.3%	501,369	267,178	772,102
Pike County	R	−43.1%	2,503	6,343	8,913
Potter County	R	−48.3%	1,789	5,164	6,984
Schuylkill County	R	−18.3%	25,758	37,330	63,312
Snyder County	R	−57.8%	2,383	8,968	11,391
Somerset County	R	−16.7%	13,900	19,502	33,491
Sullivan County	R	−33.7%	952	1,926	2,889
Susquehanna County	R	−40.4%	4,471	10,566	15,104
Tioga County	R	−44.2%	4,060	10,532	14,644
Union County	R	−47.7%	2,747	7,792	10,579
Venango County	R	−19.3%	9,114	13,507	22,725
Warren County	R	−26.7%	6,244	10,838	17,221
Washington County	D	+18.8%	50,911	34,782	85,937
Wayne County	R	−51.9%	3,155	10,061	13,297
Westmoreland County	D	+5.6%	79,906	71,377	152,464
Wyoming County	R	−48.2%	2,518	7,230	9,769
York County	R	−38.1%	33,359	75,020	109,247