Barack Obama carried Pennsylvania D+5.4.

Barack Obama (D) vs Mitt Romney (R) in Pennsylvania, 2012. The state ran 1.5 points more Democratic than the nation (D+3.9 nationally). A US Senate contest shared the 2012 ballot here.

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

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Pennsylvania result

5,755,620 votes counted

Obama (D)

2,990,274

52.0%

Romney (R)

2,680,434

46.6%

All others

84,912

1.5%

Margin

D+5.4

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2012 presidential election

Pennsylvania, 2012

ObamaD+5.4

How it voted

Share of the 2012 vote

Barack Obama ✓Democratic	52.0%	2,990,274
Mitt RomneyRepublican	46.6%	2,680,434
OtherAll other candidates	1.5%	84,912

D+60

R+60

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

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Pennsylvania's presidential margins

1892–2024, the 2012 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 — 2012

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

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County	Won	Margin	Democratic	Republican	Total
Adams County	R	−27.4%	15,091	26,767	42,625
Allegheny County	D	+14.5%	352,687	262,039	623,827
Armstrong County	R	−37.3%	9,045	20,142	29,721
Beaver County	R	−6.5%	37,055	42,344	80,793
Bedford County	R	−54.8%	4,788	16,702	21,750
Berks County	R	−1.0%	83,011	84,702	170,676
Blair County	R	−33.8%	16,276	33,319	50,365
Bradford County	R	−24.6%	8,624	14,410	23,540
Bucks County	D	+1.2%	160,521	156,579	321,266
Butler County	R	−34.8%	28,550	59,761	89,699
Cambria County	R	−18.0%	24,249	35,163	60,526
Cameron County	R	−29.9%	724	1,359	2,125
Carbon County	R	−7.5%	11,580	13,504	25,694
Centre County	D	+0.3%	34,176	34,001	69,886
Chester County	R	−0.2%	124,311	124,840	252,576
Clarion County	R	−35.5%	5,056	10,828	16,270
Clearfield County	R	−28.7%	11,121	20,347	32,122
Clinton County	R	−11.8%	5,734	7,303	13,311
Columbia County	R	−12.8%	10,937	14,236	25,744
Crawford County	R	−19.7%	13,883	20,901	35,575
Cumberland County	R	−18.4%	44,367	64,809	111,191
Dauphin County	D	+6.0%	64,965	57,450	124,301
Delaware County	D	+21.3%	171,792	110,853	285,564
Elk County	R	−15.9%	5,463	7,579	13,279
Erie County	D	+16.0%	68,036	49,025	119,114
Fayette County	R	−8.3%	21,971	26,018	48,649
Forest County	R	−21.0%	896	1,383	2,324
Franklin County	R	−38.3%	18,995	43,260	63,320
Fulton County	R	−56.3%	1,310	4,814	6,221
Greene County	R	−17.7%	5,852	8,428	14,546
Huntingdon County	R	−37.1%	5,409	11,979	17,692
Indiana County	R	−18.6%	14,473	21,257	36,444
Jefferson County	R	−45.4%	4,787	13,048	18,178
Juniata County	R	−45.0%	2,547	6,862	9,595
Lackawanna County	D	+27.2%	61,838	35,085	98,351
Lancaster County	R	−18.9%	88,481	130,669	223,351
Lawrence County	R	−9.0%	17,513	21,047	39,189
Lebanon County	R	−28.1%	19,900	35,872	56,777
Lehigh County	D	+7.7%	78,283	66,874	147,224
Luzerne County	D	+4.8%	64,307	58,325	124,845
Lycoming County	R	−33.1%	15,203	30,658	46,669
McKean County	R	−28.0%	5,297	9,545	15,154
Mercer County	R	−3.3%	24,232	25,925	51,039
Mifflin County	R	−46.7%	4,273	11,939	16,416
Monroe County	D	+13.3%	35,221	26,867	63,023
Montgomery County	D	+14.3%	233,356	174,381	412,869
Montour County	R	−20.3%	3,053	4,652	7,859
Northampton County	D	+4.7%	67,606	61,446	131,044
Northumberland County	R	−19.3%	13,072	19,518	33,356
Perry County	R	−38.7%	5,685	13,120	19,215
Philadelphia County	D	+71.3%	588,806	96,467	690,776
Pike County	R	−11.1%	10,210	12,786	23,279
Potter County	R	−45.8%	1,897	5,231	7,279
Schuylkill County	R	−13.3%	24,546	32,278	58,048
Snyder County	R	−35.7%	4,687	10,073	15,068
Somerset County	R	−42.7%	9,436	23,984	34,078
Sullivan County	R	−28.3%	1,034	1,868	2,949
Susquehanna County	R	−21.3%	6,935	10,800	18,116
Tioga County	R	−35.0%	5,357	11,342	17,094
Union County	R	−23.2%	6,109	9,896	16,337
Venango County	R	−26.4%	7,945	13,815	22,257
Warren County	R	−17.4%	6,995	10,010	17,299
Washington County	R	−13.6%	40,345	53,230	94,978
Wayne County	R	−20.8%	8,396	12,896	21,674
Westmoreland County	R	−23.7%	63,722	103,932	169,572
Wyoming County	R	−12.8%	5,061	6,587	11,921
York County	R	−21.1%	73,191	113,304	190,005