# 2020 United States presidential election in Pennsylvania

Elections in Pennsylvania :
Federal government
U.S. President
1789
1792
1796
1800
1804
1808
1812
1816
1820
1824
1828
1832
1836
1840
1844
1848
1852
1856
1860
1864
1868
1872
1876
1880
1884
1888
1892
1896
1900
1904
1908
1912
1916
1920
1924
1928
1932
1936
1940
1944
1948
1952
1956
1960
1964
1968
1972
1976
1980
1984
1988
1992
1996
2000
2004
2008
2012
2016
2020
2024
Presidential primaries
Democratic
2000
2004
2008
2016
2020
2024
Republican
2008
2016
2020
2024
U.S. Senate
1788
1791
1793 sp
1794 sp
1795
1796
1797
1801
1801 sp
1802
1806
1808
1808 sp
1809 sp
1812
1814
1814 sp
1818
1820
1824
1826
1830
1831 sp
1832
1834 sp
1836
1840 sp
1843
1845
1845 sp
1849
1851
1856
1857
1861
1861 sp
1863
1867
1869
1873
1875
1877 sp
1879
1881
1885
1887
1891
1893
1897
1899
1901 sp
1903
1905
1905 sp
1908
1909
1909 sp
1911
1914
1916
1920
1922
1922 sp
1926
1928
1930 sp
1932
1934
1938
1940
1944
1946
1950
1952
1956
1958
1962
1964
1968
1970
1974
1976
1980
1982
1986
1988
1991 sp
1992
1994
1998
2000
2004
2006
2010
2012
2016
2018
2022
2024
2028
U.S. House of Representatives
1788
1791
1792
1794
1796
5th sp
1797
5th sp
1798
1st sp
4th sp
1800
8th sp
1801
4th sp
8th sp
12th sp
1802
1804
10th sp
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1st sp
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9th sp
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10th sp
1818
4th sp
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1820
5th sp
7th sp
1821
5th sp
10th sp
1822
1st sp
6th sp
7th sp
14th sp
1824
8th sp
13th sp
1825
16th sp
1826
2nd sp
7th sp
13th sp
18th sp
1827
2nd sp
1828
1829
8th sp
16th sp
1830
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11th sp
1832
1833
1st sp
1834
1836
13th sp
24th sp
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3rd sp
1838
9th sp
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14th sp
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13th sp
22nd sp
1841
2nd sp
13th sp
20th sp
18th sp
Jun
Dec
1842
17th sp
21st sp
1843
1844
12th sp
13th sp
21st sp
1846
1848
6th sp
1850
11th sp
15th sp
1852
1854
8th sp
1856
1857
12th sp
1858
8th sp
1860
8th sp
1861
2nd sp
12th sp
1862
7th sp
1864
1866
1867
12th sp
1868
9th sp
20th sp
1870
1872
13th sp
1874
23rd sp
1876
12th sp
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1884
19th sp
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19th sp
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3rd sp
4th sp
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1893
2nd sp
8th sp
1894
at-large sp
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15th sp
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1897
25th sp
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23rd sp
1899
9th sp
1900
5th sp
1901
10th sp
1902
17th sp
1903
4th sp
1904
3rd sp
1906
2nd sp
3rd sp
12th sp
1907
2nd sp
1908
1910
1911
2nd sp
14th sp
1912
1st sp
1914
1916
1917
28th sp
1918
1919
22nd sp
1920
3rd sp
1921
at-large sp
1922
1924
1926
1927
1st sp
1928
8th sp
1929
12th sp
1930
1931
2nd sp
1932
6th sp
18th sp
20th sp
1933
9th sp
1934
1936
1937
18th sp
1938
1939
4th sp
1940
1941
15th sp
1942
11th sp
12th sp
33rd sp
1943
2nd sp
23rd sp
1944
2nd sp
17th sp
1946
10th sp
23rd sp
33rd sp
1947
8th sp
1948
1949
22nd sp
26th sp
1950
1951
8th sp
14th sp
33rd sp
1952
1954
1956
2nd sp
30th sp
1957
13th sp
1958
4th sp
21st sp
1960
17th sp
18th sp
1961
16th sp
1962
1963
15th sp
23rd sp
1964
5th sp
1966
1968
1970
9th sp
1971
18th sp
1972
27th sp
1974
12th sp
1976
1st sp
1978
1980
11th sp
12th sp
1981
3rd sp
1982
1984
1986
1988
1990
1991
2nd sp
1992
1994
1996
1998
1st sp
2000
2001
9th sp
2002
2004
2006
2008
2010
12th sp
2012
2014
2016
2nd sp
2018
7th sp
15th sp
18th sp
2019
12th sp
2020
2022
2024 :
State government
Governor
1790
1793
1796
1799
1802
1805
1808
1811
1814
1817
1820
1823
1826
1829
1832
1835
1838
1841
1844
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1848
1851
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1866
1869
1872
1875
1878
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1886
1890
1894
1898
1902
1906
1910
1914
1918
1922
1926
1930
1934
1938
1942
1946
1950
1954
1958
1962
1966
1970
1974
1978
1982
1986
1990
1994
1998
2002
2006
2010
2014
2018
2022
2026
Lieutenant Governor
1874
1878
1882
1886
1890
1894
1898
1902
1906
1910
1914
1918
1922
1926
1930
1934
1938
1942
1946
1950
1954
1958
1962
1966
1970
1974
1978
1982
1986
1990
1994
1998
2002
2006
2010
2014
2018
2022
Attorney General
1980
1984
1988
1992
1996
2000
2004
2008
2012
2016
2020
2024
Auditor General
2000
2004
2008
2012
2016
2020
2024
State Treasurer
2000
2004
2008
2012
2016
2020
2024
State Senate
2000
2002
2004
2006
2008
2010
2012
2014
2016
2018
2020
2022
2024
State House of Representatives
2000
2002
2004
2006
2008
2010
2012
2014
2016
2018
2020
2022
2024 :
Elections by year
State elections
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025 :
Philadelphia
Mayoral elections
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1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
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1865
1868
1871
1874
1877
1881
1884
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1891
1895
1899
1903
1907
1911
1915
1919
1923
1927
1931
1935
1939
1943
1947
1951
1955
1959
1963
1967
1971
1975
1979
1983
1987
1991
1995
1999
2003
2007
2011
2015
2019
2023
City Council elections
1951
1954 sp.
1955
1959
1963
2015
2019
2022–23 sp.
2023
Other municipal elections
1951
1953
1955
1957
1959
1961
1963
2023 :
Pittsburgh
Mayors
1909
1913
1917
1921
1925
1929
1933
1937
1941
1945
1949
1953
1957
1959
1961
1965
1969
1973
1977
1981
1985
1989
1993
1997
2001
2005
2007
2009
2013
2017
2021
2025 :
Allentown
Mayors
1977
1981
1985
1989
1993
1997
2001
2005
2009
2013
2017
2019 sp
2021
2025 :
Lancaster
Mayors
2009
2017
2021
2025 :
Harrisburg
Mayors
1969
1973
1977
1981
1985
1989
1993
1997
2001
2005
2009
2013
2017
2021
2025 :
Government :
vte :
The 2020 United States presidential election in Pennsylvania was held on Tuesday, November 3, 2020, as part of the 2020 United States presidential election in which all 50 states plus the District of Columbia participated. Pennsylvania voters chose electors to represent them in the Electoral College via a popular vote, pitting the Republican Party's nominee, President Donald Trump, and running mate Vice President Mike Pence against Democratic Party nominee, former Vice President Joe Biden, and his running mate California Senator Kamala Harris. Pennsylvania had 20 electoral votes in the Electoral College.
Although Trump had won the state in 2016 by a narrow margin of 0.72%, Biden was able to reclaim the state, winning it by a similarly narrow 1.17% margin. Because of the way the state counted in-person ballots first, Trump started with a wide lead on election night. However, over the next few days, Biden greatly closed the margin due to outstanding votes from Democratic-leaning areas, most notably Philadelphia and Pittsburgh, as well as mail-in ballots from all parts of the state which strongly favored him. On the morning of November 6, election-calling organization Decision Desk HQ forecast that Biden had won Pennsylvania's 20 electoral votes, and with them the election. The following morning, November 7, at the same time that the Trump campaign was holding a press conference outside of a Philadelphia landscaping business, nearly all major news organizations followed suit and called Pennsylvania for Biden, proclaiming him president-elect.
One key to Biden's success in the state was his improvement on Hillary Clinton's margins in the large Philadelphia-area suburban counties: he won Bucks by 3.60% more than Clinton did, Delaware by 4.38% more, Montgomery by 4.80% more, and Chester—which Mitt Romney had narrowly won just eight years prior—by 6.60% more. At the same time, he reclaimed two of the three large industrial counties which had voted Democratic for at least six consecutive elections before Trump flipped them in 2016: Erie and Northampton. While Trump prevailed in the third, Luzerne County, he did so by a reduced margin with respect to 2016; and Biden increased the margin of victory in his birth county, Lackawanna County, which Trump had nearly flipped in 2016. Biden halted the four-election Democratic slide in formerly traditionally Democratic Westmoreland County, where, before 2020, Al Gore had been the last Democrat to improve on the previous nominee's vote share (and which had given Trump his margin in the state in 2016). He also improved on Clinton's margins in Lehigh County by 2.9% and won Allegheny County with the largest percentage of the vote since 1988; however, Biden's vote share in Philadelphia County actually declined slightly compared to Clinton's, although he still outperformed either Al Gore in 2000 or John Kerry in 2004 in the county. Biden became the first Democratic candidate running for president to garner at least 100,000 votes in the Republican stronghold county of Lancaster. He also became the second presidential candidate since 1964, the last time the county voted for a Democrat, to get at least 40% of the vote. This was due to the large number of votes Biden received from the city of Lancaster and a competitive margin in voting precincts in and around Lititz and Columbia.
Despite Biden's victory, Pennsylvania weighed in for this election as 3.3% more Republican than the national average. This is the second consecutive presidential election in which Pennsylvania voted to the right of the nation. Previously, it had not done so since 1948. With Ohio, Florida, and Iowa backing the losing candidate for the first time since 1960, 1992, and 2000 respectively, this election established Pennsylvania, Wisconsin, and Michigan as the states with the longest bellwether streak still in effect today. The last time any of them voted against the winning candidate was 2004, when all three voted for the losing Democrat John Kerry. Biden became the first Democrat to win the White House without carrying Luzerne County since Harry Truman in 1948. This was the first election since 1932 that the county voted for the statewide loser.

## Primary elections

The primary elections were originally scheduled for April 28, 2020, also originally joining several northeastern states in holding primaries on the same date, including Connecticut, Delaware, Maryland, New York, and Rhode Island. On March 26, Pennsylvania joined several other states in moving its primary to June 2 due to the COVID-19 pandemic.

### Republican primary

Even though the Republican National Committee mailed Pennsylvania voters encouraging mail-in voting, describing it as a "convenient and secure" option, most Republicans expressed opposition to the prospect. Earlier, the Republican-controlled House blocked a proposal to mail every Pennsylvanian a mail-in ballot application. This was in response to President Trump's skepticism of the practice, expressing concern mail-in voting may result in voter fraud that would potentially benefit the Democratic Party.
2020 Pennsylvania Republican presidential primary :
| Candidate | Votes | % | Delegates |
| Donald Trump | 1,053,616 | 92.1% | 34 |
| Bill Weld | 69,427 | 6.1% | 0 |
| Rocky De La Fuente | 20,456 | 1.8% | 0 |
| Total | 1,143,499 | 100% | 34 |
Trump was declared the winner in the Republican primary, and received all of the state's 34 pledged delegates to the 2020 Republican National Convention (the state also has 54 unpledged delegates).

### Democratic primary

2020 Pennsylvania Democratic presidential primary :
| Candidate | Votes | % | Delegates |
| Joe Biden | 1,264,624 | 79.26 | 151 |
| Bernie Sanders (withdrawn) | 287,834 | 18.04 | 35 |
| Tulsi Gabbard (withdrawn) | 43,050 | 2.70 | |
| Total | 1,595,508 | 100% | 186 |

### Green Caucus

The Green Caucus was held during April 2020 and was won by Howie Hawkins.

## General election
### Final predictions

| Source | Ranking |
| The Cook Political Report | Lean D (flip) |
| Inside Elections | Lean D (flip) |
| Sabato's Crystal Ball | Lean D (flip) |
| Politico | Lean D (flip) |
| RCP | Tossup |
| Niskanen | Likely D (flip) |
| CNN | Lean D (flip) |
| The Economist | Likely D (flip) |
| CBS News | Lean D (flip) |
| 270towin | Lean D (flip) |
| ABC News | Lean D (flip) |
| NPR | Lean D (flip) |
| NBC News | Lean D (flip) |
| 538 | Likely D (flip) |

### Polling
#### Aggregate polls

| Source of poll aggregation | Dates administered | Dates updated | Joe Biden Democratic | Donald Trump Republican | Other/ Undecided | Margin |
| 270 to Win | October 22 – November 2, 2020 | November 3, 2020 | 49.4% | 45.7% | 4.9% | Biden +3.7 |
| Real Clear Politics | October 29 – November 2, 2020 | November 3, 2020 | 48.7% | 47.5% | 3.8% | Biden +1.2 |
| FiveThirtyEight | until November 2, 2020 | November 3, 2020 | 50.2% | 45.6% | 4.2% | Biden +4.6 |
| Average | Average | Average | 49.4% | 46.3% | 4.3% | Biden +3.1 |

#### 2020 polls

| Poll source | Date(s) administered | Sample size | Margin of error | Donald Trump Republican | Joe Biden Democratic | Jo Jorgensen Libertarian | Howie Hawkins Green | Other | Undecided |
| Susquehanna Polling & Research Inc. | Nov 1–2 | 499 (LV) | ± 4.3% | 49% | 48% | 1% | - | 0% | 0% |
| SurveyMonkey/Axios | Oct 20 – Nov 2 | 6,045 (LV) | ± 2% | 47% | 52% | - | - | – | – |
| Pulse Opinion Research/Rasmussen Reports | Oct 31 – Nov 1 | 800 (LV) | ± 3.5% | 47% | 50% | - | - | 1% | – |
| Research Co. | Oct 31 – Nov 1 | 450 (LV) | ± 4.6% | 46% | 52% | - | - | 2% | 4% |
| AYTM/Aspiration | Oct 30 – Nov 1 | 340 (LV) | – | 49% | 51% | - | - | – | – |
| Change Research/CNBC | Oct 29 – Nov 1 | 699 (LV) | ± 3.71% | 46% | 50% | 2% | - | – | 2% |
| Marist College/NBC | Oct 29 – Nov 1 | 772 (LV) | ± 4.4% | 46% | 51% | - | - | 1% | 2% |
| Monmouth University | Oct 28 – Nov 1 | 502(RV) | ± 4.4% | 45% | 50% | 1% | - | 0% | 4% |
| Monmouth University | Oct 28 – Nov 1 | 502 (LV) | ± 4.4% | 44% | 51% | - | - | – | – |
| Monmouth University | Oct 28 – Nov 1 | 502 (LV) | ± 4.4% | 45% | 50% | - | - | – | – |
| Swayable | Oct 27 – Nov 1 | 1,107 (LV) | ± 3.9% | 48% | 50% | 2% | - | – | – |
| Data for Progress | Oct 27 – Nov 1 | 1,417 (LV) | ± 2.6% | 45% | 52% | 2% | 0% | 0% | – |
| Ipsos/Reuters | Oct 27 – Nov 1 | 673 (LV) | ± 4.3% | 45% | 51% | 1% | 1% | 2% | – |
| Ipsos/Reuters | Oct 27 – Nov 1 | 673 (LV) | ± 4.3% | 44% | 51% | - | - | 3% | 2% |
| Ipsos/Reuters | Oct 27 – Nov 1 | 673 (LV) | ± 4.3% | 46% | 52% | - | - | 2% | – |
| Trafalgar | Oct 30–31 | 1,062 (LV) | ± 2.93% | 48% | 46% | 2% | - | 1% | 4% |
| Frederick Polls/Compete Everywhere | Oct 30–31 | 879 (LV) | ± 3% | 48% | 52% | - | - | – | – |
| Insider Advantage/Center for American Greatness | Oct 30–31 | 500 (LV) | ± 4.4% | 48.7% | 47.4% | 1.3% | - | – | 2.6% |
| Siena College/NYT Upshot | Oct 26–31 | 1,862 (LV) | ± 2.4% | 43% | 49% | 2% | - | 0% | 5% |
| Morning Consult | Oct 22–31 | 2,686 (LV) | ± 2% | 43% | 52% | - | - | – | – |
| Emerson College | Oct 29–30 | 823 (LV) | ± 3.3% | 47% | 52% | - | - | 2% | – |
| AtlasIntel | Oct 29–30 | 672 (LV) | ± 4% | 50% | 49% | - | - | 2% | – |
| Targoz Market Research/PollSmart | Oct 25–30 | 998 (LV) | – | 42% | 56% | - | - | 2% | – |
| Public Policy Polling/American Bridge PAC | Oct 28–29 | 1,012 (V) | – | 45% | 52% | - | - | – | 3% |
| Redfield & Wilton Strategies | Oct 26–29 | 2,125 (LV) | – | 45% | 50% | 1% | - | 1% | 3% |
| Harvard-Harris/The Hill | Oct 26–29 | 901 (LV) | – | 46% | 51% | - | - | – | 3% |
| ABC/Washington Post | Oct 24–29 | 824 (LV) | ± 4% | 44% | 51% | 3% | - | 0% | 1% |
| Muhlenberg College/Morning Call | Oct 23–28 | 419 (LV) | ± 5.5% | 44% | 49% | - | - | 4% | 2% |
| SurveyMonkey/Axios | Oct 1–28 | 10,599 (LV) | ± 1.5% | 46% | 52% | - | - | – | - |
| RMG Research/PoliticalIQ | Oct 25–27 | 800 (LV) | ± 3.5% | 45% | 51% | - | - | 2% | 2% |
| RMG Research/PoliticalIQ | Oct 25–27 | 800 (LV) | ± 3.5% | 44% | 52% | - | - | 2% | 2% |
| RMG Research/PoliticalIQ | Oct 25–27 | 800 (LV) | ± 3.5% | 47% | 49% | - | - | 2% | 2% |
| Quinnipiac University | Oct 23–27 | 1,324 (LV) | ± 2.7% | 44% | 51% | - | - | 1% | 4% |
| Swayable | Oct 23–26 | 491 (LV) | ± 6% | 46% | 52% | 2% | - | – | – |
| Civiqs/Daily Kos | Oct 23–26 | 1,145 (LV) | ± 3% | 45% | 52% | - | - | 2% | 1% |
| Ipsos/Reuters | Oct 20–26 | 655 (LV) | ± 4.4% | 44% | 51% | 3% | 0% | 1% | – |
| Ipsos/Reuters | Oct 20–26 | 655 (LV) | ± 4.4% | 45% | 50% | - | - | 3% | 2% |
| Insider Advantage/Center for American Greatness | Oct 25 | 400 (LV) | ± 4.9% | 48.5% | 45.5% | 3.3% | - | – | 2.8% |
| Trafalgar Group | Oct 24–25 | 1,076 (LV) | ± 2.91% | 48% | 48% | 2% | - | 1% | 1% |
| Wick Surveys | Oct 24–25 | 1,000 (LV) | ± 3.1% | 49% | 47% | - | - | – | – |
| Franklin & Marshall College | Oct 19–25 | 558 (LV) | ± 5% | 44% | 50% | 2% | - | 1% | 3% |
| Univision/University of Houston/Latino Decisions/North Star Opinion Research | Oct 17–25 | 723 (RV) | ± 3.64% | 45% | 50% | - | - | 3% | 2% |
| Gravis Marketing | Oct 23 | 602 (LV) | ± 4% | 44% | 51% | - | - | – | 5% |
| Public Policy Polling/American Bridge PAC | Oct 21–22 | 980 (V) | – | 46% | 51% | - | - | – | 4% |
| Civiqs/Dan Hopkins | Oct 17–21 | 1,577 (A) | 3% | 46% | 52% | - | - | – | 2% |
| YouGov/University of Wisconsin-Madison | Oct 13–21 | 669 (LV) | ± 4.45% | 44% | 52% | - | - | 3% | – |
| Citizen Data | Oct 17–20 | 1,000 (LV) | ± 3.1% | 39% | 44% | 9% | 0% | 1% | 7% |
| CNN/SSRS | Oct 15–20 | 843 (LV) | ± 4% | 43% | 53% | 2% | - | 1% | 1% |
| Muhlenberg College/Morning Call | Oct 13–20 | 416 (LV) | ± 5.5% | 44% | 51% | - | - | 2% | 4% |
| Morning Consult | Oct 11–20 | 2,563 (LV) | ± 1.9% | 43% | 52% | - | - | – | – |
| Fox News | Oct 18–19 | 1,045 (LV) | ± 3% | 45% | 50% | 1% | - | 1% | 2% |
| Pulse Opinion Research/Rasmussen Reports | Oct 18–19 | 800 (LV) | ± 3.5% | 47% | 50% | - | - | 2% | 3% |
| Quinnipiac University | Oct 16–19 | 1,241 (LV) | ± 2.8% | 43% | 51% | - | - | 1% | 5% |
| Change Research/CNBC | Oct 16–19 | 574 (LV) | – | 47% | 49% | - | - | – | – |
| Suffolk University/USA Today | Oct 15–19 | 500 (LV) | ± 4.4% | 42% | 49% | 1% | - | 4% | 4% |
| Ipsos/Reuters | Oct 13–19 | 653 (LV) | ± 4.4% | 45% | 49% | 2% | 0% | 3% | – |
| Ipsos/Reuters | Oct 13–19 | 653 (LV) | ± 4.4% | 45% | 49% | - | - | 3% | 4% |
| Trafalgar Group/Restoration PAC | Oct 13–15 | 1,041 (LV) | ± 2.96% | 46% | 48% | 3% | - | 2% | 2% |
| HarrisX/The Hill | Oct 12–15 | 1,289 (LV) | – | 46% | 51% | - | - | – | – |
| Insider Advantage/Center for American Greatness | Oct 12–13 | 400 (LV) | ± 4.9% | 43% | 46% | 2% | - | – | 9% |
| Redfield & Wilton Strategies | Oct 10–13 | 1,289 (LV) | – | 43% | 51% | 1% | 0% | – | – |
| Trafalgar Group | Oct 10–12 | 1,034 (LV) | ± 2.97% | 45% | 47% | 3% | - | 3% | 2% |
| RMG Research/PoliticalIQ | Oct 7–12 | 800 (LV) | – | 43% | 49% | 1% | – | 1% | 6% |
| RMG Research/PoliticalIQ | Oct 7–12 | 800 (LV) | – | 42% | 50% | 1% | – | 1% | 6% |
| RMG Research/PoliticalIQ | Oct 7–12 | 800 (LV) | – | 45% | 47% | 1% | – | 1% | 6% |
| Civiqs/Rust Belt Rising | Oct 8–11 | 600 (LV) | ± 4.2% | 45% | 52% | - | - | 2% | 1% |
| Ipsos/Reuters | Oct 6–11 | 622 (LV) | ± 4.5% | 45% | 51% | 1% | 0% | 2% | – |
| Ipsos/Reuters | Oct 6–11 | 622 (LV) | ± 4.5% | 44% | 51% | - | - | 1% | 4% |
| Morning Consult | Oct 2–11 | 2,610 (LV) | ± 1.9% | 44% | 52% | - | - | – | – |
| Redfield & Wilton Strategies | Oct 9–10 | 1,145 (LV) | – | 44% | 49% | 1% | - | – | – |
| Whitman Insight Strategies | Oct 5–9 | 517 (LV) | ± 4.3% | 46% | 51% | - | - | 1% | 3% |
| Baldwin Wallace University | Sep 30 – Oct 8 | 1,140 (LV) | ± 3.1% | 45% | 50% | 1% | 0% | 0% | 4% |
| YouGov/CCES | Sep 29 – Oct 7 | 2,703 (LV) | – | 44% | 52% | - | - | – | – |
| Redfield & Wilton Strategies | Oct 4–6 | 927 (LV) | ± 3.22% | 42% | 49% | 1% | - | 1% | 7% |
| Emerson College | Oct 4–5 | 688 (LV) | ± 3.7% | 47% | 51% | - | - | 2% | – |
| Quinnipiac University | Oct 1–5 | 1,211 (LV) | ± 2.8% | 41% | 54% | - | - | 1% | 3% |
| Ipsos/Reuters | Sep 29 – Oct 5 | 605 (LV) | ± 4.5% | 45% | 50% | - | - | 2% | 3% |
| Change Research/CNBC | Oct 2–4 | 468 (LV) | – | 46% | 50% | - | - | – | – |
| Monmouth University | Sep 30 – Oct 4 | 500 (RV) | ± 4.4% | 42% | 54% | 1% | - | 0% | 2% |
| Monmouth University | Sep 30 – Oct 4 | 500 (LV) | ± 4.4% | 43% | 54% | - | - | – | – |
| Monmouth University | Sep 30 – Oct 4 | 500 (LV) | ± 4.4% | 45% | 53% | - | - | – | – |
| YouGov/CBS | Sep 30 – Oct 2 | 1,287 (LV) | ± 3.2% | 44% | 51% | - | - | 2% | 5% |
| Siena College/NYT Upshot | Sep 30 – Oct 2 | 706 (LV) | ± 4.1% | 42% | 49% | 3% | - | 0% | 5% |
| SurveyMonkey/Axios | Sep 1–30 | 4,613 (LV) | – | 46% | 52% | - | - | – | 2% |
| ABC News/Washington Post | Sep 21–26 | 567 (LV) | ± 5.0% | 45% | 54% | - | - | 0% | 1% |
| Siena College/NYT Upshot | Sep 25–27 | 711 (LV) | ± 4.3% | 40% | 49% | 2% | - | 0% | 8% |
| TIPP/The Federalist | Sep 24–26 | 774 (LV) | ± 3.6% | 45% | 50% | - | - | 1% | 4% |
| Redfield & Wilton Strategies | Sep 23–25 | 1,015 (LV) | ± 3.08% | 44% | 50% | 0% | – | 1% | 5% |
| Fox News | Sep 20–23 | 856 (LV) | ± 3% | 44% | 51% | 2% | – | 1% | 2% |
| Fox News | Sep 20–23 | 910 (RV) | ± 3% | 43% | 51% | 2% | – | 2% | 3% |
| Baldwin Wallace University | Sep 9–22 | 1,012 (LV) | ± 3.6% | 45% | 47% | 2% | 0% | 1% | 5% |
| Trafalgar Group/Restoration PAC | Sep 18–21 | 1,006 (LV) | ± 2.99% | 46% | 48% | 1% | 1% | 2% | 2% |
| YouGov/UW-Madison Elections Research Center/Wisconsin State Journal | Sep 10–21 | 642 (LV) | – | 45% | 49% | - | - | – | – |
| Change Research/CNBC | Sep 18–20 | 579 (LV) | – | 45% | 49% | - | - | – | – |
| Franklin & Marshall College | Sep 14–20 | 480 (LV) | ± 7.8% | 42% | 48% | - | - | – | – |
| Hart Research Associates/Human Rights Campaign | Sep 17–19 | 400 (LV) | ± 4.9% | 42% | 53% | - | - | – | – |
| CPEC | Sep 15–17 | 830 (LV) | ± 2.3% | 45% | 50% | - | - | 1% | 4% |
| Trafalgar Group (R) | Sep 15–17 | 1,006 (LV) | ± 2.99% | 45% | 47% | 2% | 1% | 2% | 2% |
| Ipsos/Reuters | Sep 11–16 | 611 (LV) | ± 4.5% | 46% | 49% | - | - | 2% | 4% |
| Civiqs/Rust Belt Rising | Sep 11–15 | 704 (RV) | ± 4.4% | 45% | 52% | - | - | 1% | 2% |
| Redfield & Wilton Strategies | Sep 12–14 | 1,036 (LV) | ± 3.04% | 44% | 49% | 1% | 1% | 0% | 5% |
| Climate Nexus | Sep 8–11 | 659 (RV) | ± 4% | 43% | 48% | - | - | 3% | 6% |
| Benenson Strategy Group/GS Strategy Group/AARP | Aug 28 – Sep 8 | 1,600 (LV) | ± 2.5% | 46% | 49% | - | - | 1% | 4% |
| Marist College/NBC News | Aug 31 – Sep 7 | 771 (LV) | ± 4.4% | 44% | 53% | - | - | 1% | 2% |
| Morning Consult | Aug 29 – Sep 7 | 2,227 (LV) | ± (2%–4%) | 45% | 50% | - | - | – | – |
| Change Research/CNBC | Sep 4–6 | 829 (LV) | – | 46% | 50% | - | - | 4% | – |
| TargetSmart | Sep 3–6 | 835 (LV) | ± 3.4% | 44% | 51% | - | - | 3% | 3% |
| Susquehanna Polling & Research Inc. | Aug 26 – Sep 4 | 498 (LV) | ± 4.3% | 42% | 44% | - | - | 6% | 7% |
| Redfield & Wilton Strategies | Aug 30 – Sep 3 | 1,053 (LV) | ± 3.02% | 43% | 48% | 1% | 1% | 1% | 7% |
| Quinnipiac | Aug 28 – Sep 1 | 1,235 (LV) | ± 3% | 44% | 52% | - | - | 1% | 3% |
| ALG Research/Progressive Policy Institute | Aug 26 – Sep 1 | 500 (LV) | – | 44% | 50% | - | - | – | – |
| Monmouth University | Aug 28–31 | 400 (RV) | ± 4.9% | 45% | 49% | 2% | 0% | 1% | 4% |
| Monmouth University | Aug 28–31 | 400 (LV) | ± 4.9% | 46% | 49% | - | - | 2% | 3% |
| Monmouth University | Aug 28–31 | 400 (LV) | ± 4.9% | 47% | 48% | - | - | 2% | 3% |
| Hodas & Associates/Restoration PAC | Aug 26–31 | 600 (LV) | – | 45% | 51% | - | - | – | 4% |
| SurveyMonkey/Axios | Aug 1–31 | 3,531 (LV) | – | 45% | 53% | - | - | – | 2% |
| Morning Consult | Aug 21–30 | 2,158 (LV) | ± (2%–4%) | 45% | 49% | - | - | – | – |
| Pulse Opinion Research/Rasmussen Reports | Aug 25–27 | 1,000 (LV) | ± 3% | 48% | 48% | - | - | 4% | – |
| GQR Research/Unite the Country PAC | Aug 20–24 | 971 (LV) | ± 4.4% | 43% | 52% | - | - | – | 5% |
| Franklin & Marshall College | Aug 17–24 | 681 (RV) | ± 5.2% | 42% | 50% | - | - | 3% | 7% |
| Change Research/CNBC | Aug 21–23 | 984 (LV) | – | 46% | 49% | - | - | – | – |
| Global Strategy Group/Climate Power 2020 /League of Conservation Voters/Sierra Club | Aug 13–19 | 801 (RV) | ± 3.5% | 42% | 50% | 2% | 1% | – | 5% |
| Global Strategy Group/Climate Power 2020 /League of Conservation Voters/Sierra Club | Aug 13–19 | 801 (RV) | ± 3.5% | 43% | 53% | - | - | – | 4% |
| Redfield and Wilton Strategies | Aug 16–17 | 1,006 (LV) | ± 3.1% | 41% | 48% | 1% | 1% | 1% | 8% |
| Civiqs/Rust Belt Rising | Aug 13–17 | 617 (RV) | – | 44% | 51% | - | - | 3% | 1% |
| Muhlenberg College/Morning Call | Aug 11–17 | 416 (LV) | ± 5.5% | 45% | 49% | - | - | 3% | 3% |
| Morning Consult | Aug 7–16 | 1,777 (LV) | ± (2%–4%) | 44% | 50% | - | - | – | – |
| Emerson College | Aug 8–10 | 843 (LV) | ± 3.8% | 47% | 53% | - | - | – | – |
| Change Research/CNBC | Aug 7–9 | 456 (RV) | – | 44% | 48% | - | - | – | – |
| YouGov/CBS | Aug 4–7 | 1,211 (LV) | ± 3.7% | 43% | 49% | - | - | 3% | 5% |
| OnMessage Inc./Heritage Action | Aug 2–4 | 400 (LV) | ± 4.7% | 46% | 50% | - | - | – | 4% |
| YouGov/University of Wisconsin-Madison | Jul 27 – Aug 6 | 742 (RV) | ± 4.9% | 41% | 50% | - | - | 2% | 5% |
| SurveyMonkey/Axios | Jul 1–31 | 4,208 (LV) | – | 48% | 50% | - | - | – | 2% |
| Change Research/CNBC | Jul 24–26 | 382 (LV) | – | 46% | 48% | - | - | – | – |
| Franklin & Marshall College | Jul 20–26 | 667 (RV) | ± 5.5% | 41% | 50% | - | - | 2% | 6% |
| Morning Consult | Jul 17–26 | 2,092 (LV) | ± 2.1% | 42% | 50% | - | - | – | – |
| Gravis Marketing | Jul 22–24 | 1,006 (RV) | ± 3.1% | 45% | 48% | - | - | – | 8% |
| Zogby Analytics | Jul 21–23 | 809 (RV) | ± 3.4% | 43% | 44% | 4% | 2% | - | 8% |
| Hodas & Associates/Restoration PAC | Jul 17–22 | 600 (LV) | – | 45% | 51% | - | - | – | 5% |
| Redfield & Wilton Strategies | Jul 19–21 | 1,016 (LV) | – | 41% | 48% | 1% | 0% | 2% | 8% |
| Fox News | Jul 18–20 | 793 (RV) | ± 3.5% | 39% | 50% | - | - | 5% | 6% |
| Pulse Opinion Research/Rasmussen Reports/American Greatness PAC | Jul 15–16 | 750 (LV) | ± 4% | 46% | 51% | - | - | 2% | 1% |
| Spry Strategies/American Principles Project | Jul 11–16 | 700 (LV) | ± 3.7% | 48% | 47% | - | - | – | 5% |
| Monmouth University | Jul 9–13 | 401 (RV) | ± 4.9% | 40% | 53% | - | - | 3% | 4% |
| Monmouth University | Jul 9–13 | 401 (LV) | ± 4.9% | 42% | 52% | - | - | 3% | 3% |
| Monmouth University | Jul 9–13 | 401 (LV) | ± 4.9% | 44% | 51% | - | - | 2% | 3% |
| Change Research/CNBC | Jul 10–12 | 743 (LV) | – | 42% | 50% | - | - | – | – |
| Trafalgar Group | Jun 29 – Jul 2 | 1,062 (LV) | ± 2.92% | 43% | 48% | - | - | 6% | 3% |
| SurveyMonkey/Axios | Jun 8–30 | 2,184 (LV) | – | 48% | 50% | - | - | – | 2% |
| Change Research/CNBC | Jun 26–28 | 760 (LV) | – | 44% | 50% | - | - | – | – |
| Susquehanna Polling/Fox 43 | Jun 15–23 | 715 (LV) | – | 41% | 46% | - | - | 5% | 8% |
| Redfield & Wilton Strategies | Jun 14–16 | 1,125 (LV) | ± 2.92% | 39% | 49% | 1% | 1% | 1% | 9% |
| Siena College/NYT Upshot | Jun 8–16 | 651 (RV) | ± 4.2% | 40% | 50% | - | - | 3% | 6% |
| Change Research/CNBC | Jun 12–14 | 491 (LV) | – | 46% | 49% | - | - | 3% | – |
| Hodas & Associates/Restoration PAC | Jun 8–11 | 600 (LV) | ± 4.0% | 42% | 54% | - | - | – | 4% |
| Civiqs/Dan Hopkins | Jun 6–11 | 1,221 (A) | 3.6% | 46% | 49% | - | - | – | 5% |
| Civiqs/Dan Hopkins | May 30 – Jun 2 | 2,045 (A) | 2.4% | 46% | 49% | - | - | – | 5% |
| Change Research/CNBC | May 29–31 | 579 (LV) | – | 50% | 46% | - | - | 2% | 2% |
| Morning Consult | May 17–26 | 2,120 (LV) | – | 44% | 48% | - | - | – | – |
| Redfield & Wilton Strategies | May 10–14 | 963 (LV) | ± 3.2% | 39% | 48% | - | - | 2% | 11% |
| Hodas & Associates/Restoration PAC | May 9–13 | 600 (LV) | ± 3.0% | 51% | 46% | - | - | – | 4% |
| Harper Polling (R) | Apr 21–26 | 644 (LV) | ± 3.9% | 43% | 49% | - | - | – | 8% |
| Public Policy Polling | Apr 20–21 | 1,251 (RV) | – | 44% | 51% | - | - | – | 5% |
| Fox News | Apr 18–21 | 803 (RV) | ± 3.5% | 42% | 50% | - | - | – | – |
| Ipsos | Apr 15–20 | 578 (RV) | ± 5.0% | 40% | 46% | - | - | – | – |
| Susquehanna Research/Fox 43 | Apr 14–20 | 693 (LV) | – | 42% | 48% | - | - | – | – |
| Hodas & Associates/Restoration PAC | Apr 16–18 | 600 (RV) | ± 3.0% | 47% | 47% | - | - | – | 6% |
| Civiqs/Dan Hopkins | Apr 4–8 | 1,912 (A) | 2.5% | 47% | 47% | - | - | – | 6% |
| Baldwin Wallace University Great Lakes | Mar 17–25 | 973 (RV) | ± 3.9% | 47% | 45% | - | - | – | 9% |
| Change Research | Mar 21–23 | 510 (LV) | – | 50% | 47% | - | - | – | 4% |
| Hodas & Associates/Restoration PAC | Mar 19–21 | 600 (RV) | – | 47% | 45% | - | - | – | – |
| Civiqs/Dan Hopkins | Mar 14–18 | 1,589 (A) | 2.7% | 48% | 46% | - | - | – | 6% |
| YouGov/Yahoo News | Mar 6–8 | 725 (RV) | – | 40% | 46% | - | - | 5% | 8% |
| Firehouse Strategies/Øptimus | Mar 5–7 | 533 (RV) | ± 5.3% | 45% | 44% | - | - | – | – |
| Civiqs/Dan Hopkins | Feb 27 – Mar 3 | 2,462 (A) | 2.2% | 48% | 46% | - | - | – | 7% |
| Muhlenberg College/Morning Call | Feb 12–20 | 424 (RV) | ± 5.5% | 47% | 47% | - | - | 2% | 4% |
| YouGov | Feb 11–20 | 1,171 (RV) | ± 4.0% | 45% | 46% | - | - | – | – |
| Quinnipiac University | Feb 12–18 | 849 (RV) | ± 3.4% | 42% | 50% | - | - | 6% | 3% |
| Expedition Strategies/Progressive Policies Institute | Feb 6–18 | 500 (RV) | – | 42% | 47% | - | - | – | 11% |

#### 2017–2019 polls

| Poll source | Date(s) administered | Sample size | Margin of error | Donald Trump Republican | Joe Biden Democratic | Other | Undecided |
| Firehouse Strategies/Øptimus | Dec 3–5, 2019 | 598 (LV) | ± 4.3% | 45% | 41% | 8% | 6% |
| Muhlenberg College/Morning Call | Nov 4–9, 2019 | 410 (RV) | ± 6.0% | 43% | 52% | 4% | 2% |
| Siena College/NYT Upshot | Oct 13–25, 2019 | 661 (LV) | ± 4.4% | 45% | 46% | – | – |
| Firehouse Strategies/Øptimus | Sep 7–9, 2019 | 527 (LV) | ± 4.2% | 41% | 45% | 14% | – |
| Firehouse Strategies/Øptimus | Jun 11–13, 2019 | 565 (LV) | ± 4.2% | 42% | 43% | 15% | – |
| Quinnipiac University | May 9–14, 2019 | 978 (RV) | ± 4.2% | 42% | 53% | 1% | 3% |
| WPA Intelligence | Apr 27–30, 2019 | 200 (LV) | ± 6.9% | 45% | 46% | – | 8% |
| Emerson College | Mar 26–28, 2019 | 808 (RV) | ± 3.4% | 45% | 55% | – | – |
| Firehouse Strategies/Øptimus | Mar 19–21, 2019 | 632 (LV) | ± 4.0% | 43% | 50% | 4% | – |

#### Former candidates and hypothetical polling

Former candidates :
| Poll source | Date(s) administered | Sample size | Margin of error | Donald Trump (R) | Michael Bloomberg (D) | Other | Undecided |
| Muhlenberg College/Morning Call | Feb 12–20, 2020 | 424 (RV) | ± 5.5 % | 48% | 45% | 2% | 5% |
| Quinnipiac University | Feb 12–18, 2020 | 849 (RV) | ±3.4% | 42% | 48% | 6% | 3% |
| Expedition Strategies/Progressive Policies Institute | Feb 6–18, 2020 | 500 (RV) | – | 39% | 48% | – | 13% |
| Firehouse Strategies/Øptimus | Dec 3–5, 2019 | 598 (LV) | ± 4.3% | 45% | 41% | 9% | 5% |
| Poll source | Date(s) administered | Sample size | Margin of error | Donald Trump (R) | Pete Buttigieg (D) | Other | Undecided |
| Muhlenberg College/Morning Call | Feb 12–20, 2020 | 424 (RV) | ± 5.5 % | 46% | 45% | 3% | 5% |
| Expedition Strategies/Progressive Policies Institute | Feb 6–18, 2020 | 500 (RV) | – | 40% | 46% | – | 14% |
| YouGov | Feb 11–20, 2020 | 1,171 (RV) | ±4.0% | 44% | 44% | – | – |
| Quinnipiac University | Feb 12–18, 2020 | 849 (RV) | ±3.4% | 43% | 47% | 8% | 2% |
| Firehouse Strategies/Øptimus | Dec 3–5, 2019 | 598 (LV) | ± 4.3% | 46% | 40% | 7% | 7% |
| Firehouse Strategies/Øptimus | Jun 11–13, 2019 | 565 (LV) | ± 4.2% | 45% | 32% | 23% | – |
| Quinnipiac University | May 9–14, 2019 | 978 (RV) | ± 4.2% | 44% | 45% | 4% | 6% |
| Poll source | Date(s) administered | Sample size | Margin of error | Donald Trump (R) | Kamala Harris (D) | Other | Undecided |
| Quinnipiac University | May 9–14, 2019 | 978 (RV) | ± 4.2% | 45% | 45% | 3% | 5% |
| Emerson College | Mar 26–28, 2019 | 808 (RV) | ± 3.4% | 49% | 51% | – | – |
| Poll source | Date(s) administered | Sample size | Margin of error | Donald Trump (R) | Amy Klobuchar (D) | Other | Undecided |
| Muhlenberg College/Morning Call | Feb 12–20, 2020 | 424 (RV) | ± 5.5 % | 45% | 44% | 3% | 8% |
| YouGov | Feb 11–20, 2020 | 1,171 (RV) | ±4.0% | 43% | 43% | – | – |
| Quinnipiac University | Feb 12–18, 2020 | 849 (RV) | ±3.4% | 42% | 49% | 6% | 4% |
| Poll source | Date(s) administered | Sample size | Margin of error | Donald Trump (R) | Beto O'Rourke (D) | Other | Undecided |
| Quinnipiac University | May 9–14, 2019 | 978 (RV) | ± 4.2% | 46% | 44% | 4% | 5% |
| Emerson College | Mar 26–28, 2019 | 808 (RV) | ± 3.4% | 49% | 51% | – | – |
| Firehouse Strategies/Øptimus | Mar 19–21, 2019 | 632 (LV) | ± 4.0% | 47% | 40% | 8% | – |
| Poll source | Date(s) administered | Sample size | Margin of error | Donald Trump (R) | Bernie Sanders (D) | Other | Undecided |
| Baldwin Wallace University Great Lakes | Mar 17–25, 2020 | 973 (RV) | ± 3.9% | 48% | 42% | – | 10% |
| Hodas & Associates/Restoration PAC | Mar 19–21, 2020 | 600 (RV) | – | 49% | 43% | – | – |
| YouGov/Yahoo News | Mar 6–8, 2020 | 725 (RV) | – | 41% | 43% | 6% | 10% |
| Firehouse Strategies/Øptimus | Mar 5–7, 2020 | 533 (RV) | ± 5.3 % | 46% | 42% | – | – |
| Muhlenberg College/Morning Call | Feb 12–20, 2020 | 424 (RV) | ± 5.5 % | 46% | 49% | 3% | 3% |
| YouGov | Feb 11–20, 2020 | 1,171 (RV) | ±4.0% | 45% | 47% | – | – |
| Quinnipiac University | Feb 12–18, 2020 | 849 (RV) | ±3.4% | 44% | 48% | 5% | 1% |
| Expedition Strategies/Progressive Policies Institute | Feb 6–18, 2020 | 500 (RV) | – | 43% | 45% | – | 12% |
| Firehouse Strategies/Øptimus | Dec 3–5, 2019 | 598 (LV) | ± 4.3% | 48% | 37% | 8% | 6% |
| Muhlenberg College/Morning Call | Nov 4–9, 2019 | 410 (RV) | ± 6.0% | 45% | 50% | 4% | 1% |
| NYT Upshot/Siena College | Oct 13–25, 2019 | 661 (LV) | ± 4.4% | 45% | 44% | – | – |
| Firehouse Strategies/Øptimus | Sep 7–9, 2019 | 527 (LV) | ± 4.2% | 42% | 44% | 14% | – |
| Firehouse Strategies/Øptimus | Jun 11–13, 2019 | 565 (LV) | ± 4.2% | 44% | 41% | 15% | – |
| Quinnipiac University | May 9–14, 2019 | 978 (RV) | ± 4.2% | 43% | 50% | 2% | 3% |
| Tulchin Research (D) | Apr 14–18, 2019 | 400 (LV) | ± 4.9% | 43% | 51% | – | – |
| Emerson College | Mar 26–28, 2019 | 808 (RV) | ± 3.4% | 45% | 55% | – | – |
| Firehouse Strategies/Øptimus | Mar 19–21, 2019 | 632 (LV) | ± 4.0% | 44% | 44% | 8% | – |
| Poll source | Date(s) administered | Sample size | Margin of error | Donald Trump (R) | Elizabeth Warren (D) | Other | Undecided |
| Muhlenberg College/Morning Call | Feb 12–20, 2020 | 424 (RV) | ± 5.5 % | 47% | 47% | 4% | 3% |
| YouGov | Feb 11–20, 2020 | 1,171 (RV) | ±4.0% | 45% | 45% | – | – |
| Quinnipiac University | Feb 12–18, 2020 | 849 (RV) | ±3.4% | 44% | 47% | 8% | 2% |
| Firehouse Strategies/Øptimus | Dec 3–5, 2019 | 598 (LV) | ± 4.3% | 47% | 40% | 8% | 5% |
| Muhlenberg College/Morning Call | Nov 4–9, 2019 | 410 (RV) | ± 6.0% | 45% | 50% | 4% | 1% |
| NYT Upshot/Siena College | Oct 13–25, 2019 | 661 (LV) | ± 4.4% | 46% | 44% | – | – |
| Firehouse Strategies/Øptimus | Sep 7–9, 2019 | 527 (LV) | ± 4.2% | 41% | 43% | 16% | – |
| Firehouse Strategies/Øptimus | Jun 11–13, 2019 | 565 (LV) | ± 4.2% | 45% | 34% | 21% | – |
| Quinnipiac University | May 9–14, 2019 | 978 (RV) | ± 4.2% | 44% | 47% | 3% | 4% |
| Emerson College | Mar 26–28, 2019 | 808 (RV) | ± 3.4% | 48% | 52% | – | – |
| Zogby Analytics | Aug 17–23, 2017 | 813 (LV) | ± 3.4% | 38% | 46% | – | 16% |
Hypothetical polling :
| Poll source | Date(s) administered | Sample size | Margin of error | Donald Trump (R) | Generic Democrat (D) | Undecided |
| Baldwin Wallace University/Oakland University/Ohio Northern University | Mar 17–25, 2020 | 997 (RV) | ± 3.7% | 48.6% | 49.2% | 2.1% |
| Expedition Strategies/Progressive Policies Institute | Feb 6–18, 2020 | 500 (RV) | – | 38% | 51% | 11% |
| Baldwin Wallace University/Oakland University/Ohio Northern University | Jan 8–20, 2020 | 1,037 (RV) | ± 3.2% | 39.7% | 49.5% | 10.7% |
| KFF/Cook Political Report | Sep 23 – Oct 15, 2019 | 752 (RV) | ± 4% | 29% | 40% | 22% |
| Poll source | Date(s) administered | Sample size | Margin of error | Donald Trump (R) | Generic Opponent | Undecided |
| Muhlenberg College/Morning Call | Oct 23–28, 2020 | 419 (LV) | ± 5.5% | 42% | 54% | 4% |
| Muhlenberg College/Morning Call Archived November 3, 2020, at the Wayback Machine | Oct 13–20, 2020 | 416 (LV) | ± 5.5% | 44% | 51% | 5% |
| Muhlenberg College/Morning Call | Aug 11–17, 2020 | 416 (LV) | ± 5.5% | 44% | 53% | 3% |
| Muhlenberg College/Morning Call | Feb 12–20, 2020 | 424 (RV) | ± 5.5% | 42% | 54% | 4% |
| Muhlenberg College/Morning Call | Nov 4–9, 2019 | 410 (RV) | ± 6.0% | 42% | 57% | 2% |
| F&M/PoliticsPA | Mar 18–24, 2019 | 540 (RV) | ± 5.5% | 36% | 61% | 4% |

### Electoral slates

These slates of electors were nominated by each party in order to vote in the Electoral College should their candidates win the state:
| Donald Trump and Mike Pence Republican Party | Joe Biden and Kamala Harris Democratic Party | Jo Jorgensen and Spike Cohen Libertarian Party |
| Robert B. AsherBill BachenbergLou BarlettaTed ChristianTed CoccodrilliBernadette ComfortSam DeMarcoMarcela Diaz-MyersJosephine FerroRobert GleasonAsh KhareThomas MarinoLissa PattonPat PoprikAndy ReillyLance StangeLawrence TabasChristine TorettiCalvin TuckerCarolyn Bunny Welsh | Nina AhmadVal ArkooshCindy BassRick BloomingdaleRyan BoyerPaige Gebhardt CognettiDaisy CruzKathy DahlkemperJanet DiazCharles HadleyJordan HarrisMalcolm KenyattaGerald LawrenceClifford LevineVirginia McGregorNancy MillsMarian MoskowitzJosh ShapiroSharif StreetConnie Williams | Kyle BurtonHenry ConolyDaniel CooperThomas EckmanGreg FaustKevin GaughenWillie HarmonKen KrawchukBrandon MagoonRoy MinetPaul NicoteraPaul RizzoRichard SchwartzmanWilliam SloaneKathleen SmithJake TowneGlenn TuttleStephen WharhaftigJohn WaldenbergerDaniel Wassmer |

### Results

9,098,998 residents registered to vote by the voter registration deadline on October 15, which had been extended from its original date on October 13 by court order.
2020 United States presidential election in Pennsylvania :
| Party | Party | Candidate | Votes | % | ±% |
| | Democratic | Joe BidenKamala Harris | 3,458,229 | 49.85 | +2.39 |
| | Republican | Donald Trump (incumbent)Mike Pence (incumbent) | 3,377,674 | 48.69 | +0.51 |
| | Libertarian | Jo JorgensenSpike Cohen | 79,380 | 1.14 | −1.24 |
| | Green | Howie Hawkins (write-in) Angela Walker (write-in) | 1,282 | 0.02 | −0.79 |
| | American Solidarity | Brian T. Carroll (write-in) Amar Patel (write-in) | 362 | 0.01 | N/A |
| | Write-in | Write-in | 20,049 | 0.29 | -0.31 |
| Total votes | Total votes | Total votes | 6,936,976 | 100.00% | N/A |
| | Democratic win | Democratic win | Democratic win | Democratic win | Democratic win |

#### By county

| County | Joe Biden Democratic | Joe Biden Democratic | Donald Trump Republican | Donald Trump Republican | Jo Jorgensen Libertarian | Jo Jorgensen Libertarian | Various candidates Other parties | Various candidates Other parties | Margin | Margin | Total votes cast |
| County | # | % | # | % | # | % | # | % | # | % | Total votes cast |
| Adams | 18,254 | 32.13% | 37,567 | 66.13% | 814 | 1.43% | 174 | 0.31% | −19,313 | −34.00% | 56,809 |
| Allegheny | 430,759 | 59.43% | 282,913 | 39.03% | 8,361 | 1.15% | 2,767 | 0.38% | 147,846 | 20.40% | 724,800 |
| Armstrong | 8,457 | 23.22% | 27,489 | 75.47% | 424 | 1.16% | 56 | 0.15% | −19,032 | −52.25% | 36,426 |
| Beaver | 38,122 | 40.38% | 54,759 | 58.01% | 1,241 | 1.31% | 275 | 0.29% | −16,637 | −17.63% | 94,397 |
| Bedford | 4,367 | 15.82% | 23,025 | 83.39% | 182 | 0.66% | 36 | 0.13% | −18,658 | −67.57% | 27,610 |
| Berks | 93,116 | 45.08% | 109,926 | 53.22% | 2,924 | 1.42% | 587 | 0.28% | −16,810 | −8.14% | 206,553 |
| Blair | 17,636 | 27.67% | 45,306 | 71.07% | 653 | 1.02% | 153 | 0.24% | −27,670 | −43.40% | 63,748 |
| Bradford | 8,046 | 26.61% | 21,600 | 71.45% | 513 | 1.70% | 73 | 0.24% | −13,554 | −44.84% | 30,232 |
| Bucks | 204,712 | 51.53% | 187,367 | 47.16% | 4,155 | 1.05% | 1,057 | 0.27% | 17,345 | 4.37% | 397,291 |
| Butler | 37,508 | 33.00% | 74,359 | 65.42% | 1,438 | 1.27% | 358 | 0.31% | −36,851 | −32.42% | 113,663 |
| Cambria | 21,730 | 30.71% | 48,085 | 67.96% | 759 | 1.07% | 177 | 0.25% | −26,355 | −37.25% | 70,751 |
| Cameron | 634 | 25.98% | 1,771 | 72.58% | 29 | 1.19% | 6 | 0.25% | −1,137 | −46.60% | 2,440 |
| Carbon | 11,212 | 33.28% | 21,984 | 65.26% | 433 | 1.29% | 60 | 0.18% | −10,772 | −31.98% | 33,689 |
| Centre | 40,055 | 51.42% | 36,372 | 46.70% | 1,066 | 1.37% | 398 | 0.51% | 3,683 | 4.72% | 77,891 |
| Chester | 182,372 | 57.76% | 128,565 | 40.72% | 3,565 | 1.13% | 1,251 | 0.40% | 53,807 | 17.04% | 315,753 |
| Clarion | 4,678 | 23.96% | 14,578 | 74.67% | 237 | 1.21% | 31 | 0.16% | −9,900 | −50.71% | 19,524 |
| Clearfield | 9,673 | 24.49% | 29,203 | 73.94% | 546 | 1.38% | 74 | 0.19% | −19,530 | −49.45% | 39,496 |
| Clinton | 5,502 | 31.15% | 11,902 | 67.39% | 221 | 1.25% | 36 | 0.20% | −6,400 | −36.24% | 17,661 |
| Columbia | 10,532 | 33.67% | 20,098 | 64.25% | 541 | 1.73% | 109 | 0.35% | −9,566 | −30.58% | 31,280 |
| Crawford | 12,924 | 30.69% | 28,561 | 67.82% | 521 | 1.24% | 108 | 0.26% | −15,637 | −37.13% | 42,114 |
| Cumberland | 62,245 | 43.78% | 77,212 | 54.30% | 2,138 | 1.50% | 592 | 0.42% | −14,967 | −10.52% | 142,187 |
| Dauphin | 78,983 | 53.40% | 66,408 | 44.90% | 1,977 | 1.34% | 533 | 0.36% | 12,575 | 8.50% | 147,901 |
| Delaware | 206,709 | 62.75% | 118,639 | 36.02% | 2,981 | 0.90% | 1,075 | 0.33% | 88,070 | 26.73% | 329,404 |
| Elk | 4,522 | 26.68% | 12,140 | 71.64% | 244 | 1.44% | 40 | 0.24% | −7,618 | −44.96% | 16,946 |
| Erie | 68,286 | 49.66% | 66,869 | 48.63% | 1,928 | 1.40% | 411 | 0.30% | 1,417 | 1.03% | 137,494 |
| Fayette | 20,469 | 32.87% | 41,251 | 66.24% | 468 | 0.75% | 91 | 0.15% | −20,782 | −33.37% | 62,279 |
| Forest | 728 | 27.43% | 1,882 | 70.91% | 36 | 1.36% | 8 | 0.30% | −1,154 | −43.48% | 2,654 |
| Franklin | 22,422 | 27.67% | 57,245 | 70.65% | 1,116 | 1.38% | 242 | 0.30% | −34,823 | −42.98% | 81,025 |
| Fulton | 1,085 | 13.58% | 6,824 | 85.41% | 68 | 0.85% | 13 | 0.26% | −5,739 | −71.83% | 7,990 |
| Greene | 4,911 | 27.75% | 12,579 | 71.08% | 179 | 1.01% | 28 | 0.16% | −7,668 | −43.33% | 17,697 |
| Huntingdon | 5,445 | 23.84% | 17,061 | 74.69% | 286 | 1.25% | 51 | 0.22% | −11,616 | −50.85% | 22,843 |
| Indiana | 12,634 | 30.60% | 28,089 | 68.03% | 475 | 1.15% | 91 | 0.22% | −15,455 | −37.43% | 41,289 |
| Jefferson | 4,529 | 19.80% | 17,964 | 78.54% | 337 | 1.47% | 42 | 0.18% | −13,435 | −58.74% | 22,872 |
| Juniata | 2,253 | 18.66% | 9,649 | 79.93% | 141 | 1.17% | 29 | 0.24% | −7,396 | −61.27% | 12,072 |
| Lackawanna | 61,991 | 53.58% | 52,334 | 45.23% | 1,085 | 0.94% | 285 | 0.25% | 9,657 | 8.35% | 115,695 |
| Lancaster | 115,847 | 41.17% | 160,209 | 56.94% | 4,183 | 1.49% | 1,136 | 0.40% | −44,362 | −15.77% | 281,375 |
| Lawrence | 15,978 | 34.59% | 29,597 | 64.08% | 501 | 1.08% | 111 | 0.24% | −13,619 | −29.49% | 46,187 |
| Lebanon | 23,932 | 33.30% | 46,731 | 65.03% | 989 | 1.38% | 206 | 0.29% | −22,799 | −31.73% | 71,858 |
| Lehigh | 98,498 | 53.05% | 84,418 | 45.47% | 2,176 | 1.17% | 563 | 0.30% | 14,080 | 7.58% | 185,655 |
| Luzerne | 64,873 | 42.26% | 86,929 | 56.63% | 1,519 | 0.99% | 178 | 0.12% | −22,056 | −14.37% | 153,499 |
| Lycoming | 16,971 | 28.57% | 41,462 | 69.80% | 821 | 1.38% | 143 | 0.24% | −24,491 | −41.23% | 59,397 |
| McKean | 5,098 | 26.13% | 14,083 | 72.18% | 285 | 1.46% | 44 | 0.23% | −8,985 | −46.05% | 19,510 |
| Mercer | 21,067 | 36.25% | 36,143 | 62.19% | 744 | 1.28% | 163 | 0.28% | −15,076 | −25.94% | 58,117 |
| Mifflin | 4,603 | 21.36% | 16,670 | 77.37% | 229 | 1.06% | 45 | 0.21% | −12,067 | −56.01% | 21,547 |
| Monroe | 44,060 | 52.43% | 38,726 | 46.08% | 1,043 | 1.24% | 205 | 0.24% | 5,334 | 6.35% | 84,034 |
| Montgomery | 319,511 | 62.41% | 185,460 | 36.23% | 5,186 | 1.01% | 1,763 | 0.35% | 134,051 | 26.18% | 511,920 |
| Montour | 3,771 | 38.41% | 5,844 | 59.53% | 156 | 1.59% | 46 | 0.47% | −2,073 | −21.12% | 9,817 |
| Northampton | 85,087 | 49.64% | 83,854 | 48.92% | 2,001 | 1.17% | 457 | 0.27% | 1,233 | 0.72% | 171,399 |
| Northumberland | 12,703 | 29.94% | 28,975 | 68.28% | 657 | 1.55% | 100 | 0.24% | −16,272 | −38.34% | 42,435 |
| Perry | 5,950 | 24.06% | 18,293 | 73.98% | 409 | 1.65% | 76 | 0.31% | −12,343 | −49.92% | 24,728 |
| Philadelphia | 604,175 | 81.21% | 132,870 | 17.86% | 4,854 | 0.65% | 2,067 | 0.28% | 471,305 | 63.35% | 743,966 |
| Pike | 13,052 | 40.02% | 19,241 | 58.99% | 323 | 0.99% | 0 | 0.00% | −6,189 | −18.97% | 32,616 |
| Potter | 1,726 | 19.00% | 7,239 | 79.68% | 99 | 1.09% | 21 | 0.23% | −5,513 | −60.68% | 9,085 |
| Schuylkill | 20,727 | 29.29% | 48,871 | 69.07% | 1,005 | 1.42% | 152 | 0.21% | −28,144 | −39.78% | 70,755 |
| Snyder | 4,910 | 25.60% | 13,983 | 72.90% | 247 | 1.29% | 41 | 0.21% | −9,073 | −47.30% | 19,181 |
| Somerset | 8,654 | 21.30% | 31,466 | 77.45% | 423 | 1.04% | 83 | 0.20% | −22,812 | −56.15% | 40,626 |
| Sullivan | 921 | 25.60% | 2,619 | 72.79% | 55 | 1.53% | 3 | 0.08% | −1,698 | −47.19% | 3,598 |
| Susquehanna | 6,236 | 28.59% | 15,207 | 69.72% | 309 | 1.42% | 61 | 0.28% | −8,971 | −41.13% | 21,813 |
| Tioga | 4,955 | 23.45% | 15,742 | 74.51% | 378 | 1.79% | 51 | 0.24% | −10,787 | −51.06% | 21,126 |
| Union | 7,475 | 37.02% | 12,356 | 61.19% | 284 | 1.41% | 77 | 0.38% | −4,881 | −24.17% | 20,192 |
| Venango | 7,585 | 28.51% | 18,569 | 69.81% | 374 | 1.41% | 73 | 0.27% | −10,984 | −41.30% | 26,601 |
| Warren | 6,066 | 29.37% | 14,237 | 68.92% | 347 | 1.68% | 7 | 0.03% | −8,171 | −39.55% | 20,657 |
| Washington | 45,088 | 37.97% | 72,080 | 60.70% | 1,310 | 1.10% | 278 | 0.23% | −26,992 | −22.73% | 118,756 |
| Wayne | 9,191 | 32.65% | 18,637 | 66.21% | 261 | 0.93% | 58 | 0.21% | −9,446 | −33.56% | 28,147 |
| Westmoreland | 72,192 | 35.16% | 130,299 | 63.46% | 2,353 | 1.15% | 486 | 0.24% | −58,107 | −28.30% | 205,330 |
| Wyoming | 4,704 | 31.57% | 9,936 | 66.68% | 218 | 1.46% | 42 | 0.28% | −5,232 | −35.11% | 14,900 |
| York | 88,114 | 36.85% | 146,733 | 61.36% | 3,624 | 1.52% | 675 | 0.28% | −58,619 | −24.51% | 239,146 |
| Totals | 3,461,221 | 49.87% | 3,379,055 | 48.69% | 79,445 | 1.14% | 20,728 | 0.30% | 82,166 | 1.18% | 6,940,449 |
* Democratic — +7.5–10%
* Democratic — +5–7.5%
* Democratic — +2.5–5%
* Democratic — +0–2.5%
* Republican — +0–2.5%
* Republican — +2.5–5%
* Republican — +5–7.5%
* Democratic — +7.5–10%
* Democratic — +5–7.5%
* Democratic — +2.5–5%
* Democratic — +0–2.5%
* Republican — +0–2.5%
* Republican — +2.5–5%
* Republican — +5–7.5%
* Democratic  Hold  Gain from Republican Republican  Hold
Counties that flipped from Republican to Democratic
* Erie (largest municipality: Erie)
* Northampton (largest municipality: Bethlehem)

#### By congressional district

Biden and Trump both won half of the 18 congressional districts in Pennsylvania, including each winning one held by the opposite party.
| District | Trump | Biden | Representative |
| 1st | 46.6% | 52.4% | Brian Fitzpatrick |
| 2nd | 29.1% | 70.1% | Brendan Boyle |
| 3rd | 8.1% | 91.3% | Dwight Evans |
| 4th | 37.4% | 61.5% | Madeleine Dean |
| 5th | 34% | 65.1% | Mary Gay Scanlon |
| 6th | 41.9% | 56.9% | Chrissy Houlahan |
| 7th | 47% | 51.8% | Susan Wild |
| 8th | 51.7% | 47.3% | Matt Cartwright |
| 9th | 64.5% | 34.1% | Dan Meuser |
| 10th | 50.7% | 47.8% | Scott Perry |
| 11th | 60.2% | 38.3% | Lloyd Smucker |
| 12th | 67.3% | 31.2% | Fred Keller |
| 13th | 71.6% | 27.2% | John Joyce |
| 14th | 63.2% | 35.7% | Guy Reschenthaler |
| 15th | 71.2% | 27.5% | Glenn Thompson |
| 16th | 58.7% | 40% | Mike Kelly |
| 17th | 48% | 50.7% | Conor Lamb |
| 18th | 34.4% | 64.5% | Mike Doyle |

## Analysis

Throughout the year, Pennsylvania was regarded as the most important (or likely tipping-point) state in the entire election; Pennsylvania had 20 electoral votes, and it was one of the closest states of the 2016 presidential election. Both candidates aggressively played for the state; Trump needed the state as it represented his narrow path to re-election, while Biden needed the state to rebuild the blue wall, which Trump had broken in 2016 by carrying the northern industrial states of Michigan, Pennsylvania, and Wisconsin.
Historically, Pennsylvania has usually been a competitive state. During the Second Party System from 1828 to 1852, it voted for the winner of every election. From the Civil War on, it has generally had a partisan lean; during the Third and Fourth Party Systems, Pennsylvania was a classic Yankee Republican state. When Franklin Roosevelt carried it in 1936, he became the first Democrat in eighty years to do so. Between 1936 and 1988, neither major party carried Pennsylvania for more than three straight presidential elections, although between 1952 and 1988, it voted Democratic in every close election (1960, 1968, 1976), and consistently voted more Democratic than the nation. Starting in 1992, Pennsylvania became part of the blue wall—the group of states that voted Democratic for six straight elections from 1992 through 2012. In 2016, it was one of three blue wall states that Trump won on his way to an upset victory.
State Republicans sought to require that only mail-in ballots received by Election Day be counted. The Commonwealth's Supreme Court rejected their demands, deciding that, due to probable delays due to the ongoing coronavirus and U.S. Postal Service crisis, ballots received up to three days after Election Day would also be counted. Republicans then appealed the decision to the U.S. Supreme Court. Supreme Court justices produced a 4–4 tie (as the late Ruth Bader Ginsburg's seat remained vacant when the ruling was issued), with Chief Justice John Roberts siding with the three liberal justices, allowing the state supreme court decision to stand.
At 1.17%, Biden's winning margin percentage in Pennsylvania was the smallest ever for a Democratic presidential candidate who won Pennsylvania. Pennsylvania remained redder than the country in 2020 even as Biden won it, by about 3.3%. As in Michigan and Wisconsin, Biden ran behind Barack Obama's performances in 2008 and 2012, though he received more votes total in the state this cycle due to record-breaking turnout. Biden's margin of victory was also less than Al Gore's 4.2% margin of victory in 2000 and John Kerry's 2.5% margin of victory in 2004.
As for Trump, he easily set the record for total number of votes for a Republican candidate in Pennsylvania history (as with Biden, largely due to record-breaking turnout). With 48.84% of the vote, he did slightly outpace both his own vote share in 2016 (48.18%) and George W. Bush's in 2004 (48.42%), the latter of which had previously stood as the highest Republican vote share in the state since 1988.
Biden's strongest base of support was the Philadelphia metro area. In the city of Philadelphia itself, Biden won by 63.4%, a weaker win than Hillary Clinton's 66.9% margin in the city in 2016, but still better than Kerry's 61.1% margin in 2004 or Gore's 62.0% margin in 2000. Donald Trump improved his vote share in Philadelphia by 2.5%, and, as of the counting on November 8, held a majority of the vote in the 26th, 58th, and 66th wards. However, Biden improved on Hillary Clinton dramatically in the Main Line counties of Montgomery and Chester, as well as, to a lesser extent, Delaware, increasing the Democratic vote share in these counties by 4.2%, 5.9%, and 3.5%, respectively, and winning them all by double digits. Before 1992, all three had been Republican strongholds in the state, and Chester had been considered a swing county as recently as 2012, when Romney narrowly carried it, but all three have drifted towards the Democratic column, as they tend to be socially liberal.
Biden also performed strongly in Pennsylvania's other urban, suburban, and exurban areas. Crucially, he carried Allegheny County (Pittsburgh) by 20.4%, the widest margin any nominee had won the county by since 1992. Centre and Dauphin both remained in the Democratic column; in the past, these counties voted Republican, though Centre County is home to Pennsylvania State University, while Dauphin County, home of Harrisburg, has followed the trend of urban areas becoming more Democratic. Biden also narrowly reclaimed two counties anchored by industrial cities which had long voted Democratic before Trump flipped them in 2016, Northampton (Bethlehem and Easton) and Erie (Erie), and improved on Hillary Clinton's margin in his birth county of Lackawanna County (Scranton), a county Hillary Clinton had barely kept in the Democratic column in 2016. In suburban Cumberland County, adjacent to Harrisburg, Biden shaved Trump's margin from 17.8% to 10.5%. Northampton and Erie were the only counties to flip from one party to the other; Northampton has voted for the winner of the state in every election from 1952 on.
Trump maintained much of his momentum throughout rural and industrial Pennsylvania from four years earlier, with convincing victories in counties that were once competitive or even Democratic-leaning. He kept Luzerne County (Wilkes-Barre), which had voted Democratic six elections in a row before 2016 (and which had voted with the winner of the state from 1936 through 2016), in his column, although his margin in it was cut from 19.3% to 14.3%. Trump also won the former Democratic stronghold of Westmoreland County, although his margin in this county, crucial to his win in 2016, declined. Other previously competitive counties that Trump performed well in included Berks and Cambria, both of which voted for Obama in 2008. Trump further ran up the score in other conservative exurban counties, most notably in Lancaster and Lebanon counties, though his margin shrank somewhat in both.
Trump won whites in the state by 15 points, although like in the rest of the country, there was a clear disparity between college-educated and non-college-educated whites. Biden won whites with a college degree by 9 points, while Trump excelled with whites without a college degree, winning this group by 32 points. Additionally, there was a gender disparity with the white vote; Trump won white men by 15 points, but only carried white women by 3 points. Finally, there was an age gap; Biden won young voters by double-digit margins, whereas Trump performed strongly with middle-aged voters; senior citizens were more even, breaking slightly for Trump. Within minority blocs, Biden fared well, as he won black voters by 87 points, and won Latinos by 42 points. Three other critical voting blocs broke for Biden this cycle; he won independent voters by 8 points, moderates by 17 points, and first-time voters by 23 points.

### Voter demographics

Edison Research exit poll :
| Demographic subgroup | Biden | Trump | No Answer | % of Voters |
| Party |||||
| Democrat | 92 | 7 | N/A | 40 |
| Republican | 8 | 91 | N/A | 41 |
| Independent | 52 | 44 | N/A | 19 |
| Gender |||||
| Men | 44 | 55 | 1 | 47 |
| Women | 55 | 44 | 1 | 53 |
| Race |||||
| White | 42 | 57 | 1 | 81 |
| Black | 92 | 7 | 1 | 11 |
| Latino | 69 | 27 | 4 | 5 |
| Asian | N/A | N/A | N/A | 1 |
| Other | N/A | N/A | N/A | 1 |
| Gender by race/ethnicity |||||
| White men | 37 | 62 | 1 | 38 |
| White women | 47 | 52 | 1 | 43 |
| Black men | 89 | 10 | 1 | 5 |
| Black women | 94 | 4 | 2 | 6 |
| Latino men (of any race) | N/A | N/A | 1 | 3 |
| Latino women (of any race) | 83 | 15 | 2 | 3 |
| All other races | 62 | 33 | 5 | 2 |
| Age |||||
| 18–24 years old | 59 | 37 | 3 | 7 |
| 25–29 years old | 67 | 31 | 2 | 6 |
| 30–39 years old | 61 | 37 | 2 | 16 |
| 40–49 years old | 52 | 46 | 2 | 13 |
| 50–64 years old | 41 | 59 | N/A | 31 |
| 65 and older | 46 | 53 | 1 | 28 |
| Sexual orientation |||||
| LGBT | 64 | 34 | 2 | 7 |
| Heterosexual | 47 | 52 | 1 | 93 |
| First time voter |||||
| First time voter | 52 | 45 | 3 | 13 |
| Everyone else | 48 | 52 | N/A | 87 |
| Education |||||
| High school or less | 35 | 64 | 1 | 16 |
| Some college education | 49 | 49 | 2 | 26 |
| Associate degree | 46 | 53 | 1 | 17 |
| Bachelor's degree | 54 | 45 | 1 | 26 |
| Advanced degree | 63 | 36 | 1 | 14 |
| Education by race/ethnicity |||||
| White college graduates | 54 | 45 | 1 | 26 |
| White no college degree | 20 | 79 | 1 | 35 |
| Non-white college graduates | 83 | 16 | 1 | 14 |
| Non-white no college degree | 80 | 19 | 1 | 25 |
| Income |||||
| Under $30,000 | 60 | 37 | 3 | 15 |
| $30,000–49,999 | 53 | 45 | 3 | 19 |
| $50,000–99,999 | 53 | 46 | 1 | 23 |
| $100,000–199,999 | 51 | 48 | 1 | 23 |
| Over $200,000 | N/A | N/A | N/A | 7 |
| Abortion should be |||||
| Legal in all cases | 84 | 15 | 1 | 25 |
| Legal in most cases | 67 | 32 | 1 | 30 |
| Illegal in most cases | 17 | 83 | 1 | 27 |
| Illegal in all cases | 12 | 85 | 3 | 13 |
| Region |||||
| Northeast | 46 | 53 | 1 | 17 |
| Philly Suburbs | 81 | 18 | 1 | 11 |
| Central | 38 | 61 | 1 | 22 |
| West | 43 | 56 | 1 | 28 |
| Source: CNN |||||

## Aftermath

On November 24, 2020, the Secretary of the Commonwealth of Pennsylvania, Kathy Boockvar, certified the results, and Governor Tom Wolf, in accordance with the law, signed the certificate of ascertainment for the Biden/Harris slate of electors for Biden and Harris and sent it to the Archivist of the United States.
On November 25, 2020, the Pennsylvania Senate Majority (Republican) Policy committee held a public hearing regarding the counting of ballots in this election. Trump planned to attend the meeting but he canceled the trip.
Also, on November 25, after a group of Republican congressmen had filed a lawsuit to stop certification on Sunday November 22, Judge Patricia McCullough (R) ruled to halt further state certifications pending a hearing. The Pennsylvania Supreme Court then ruled Saturday night on November 28 to unanimously overturn Judge Patricia McCullough's ruling to halt certification because no fraud was alleged and both parties could have objected throughout the year, but did not.
On December 31, 2020, Pennsylvania Congressman Dan Meuser (PA-9), Congressman Glenn 'GT' Thompson (PA-15), Congressman Mike Kelly (PA-16), Congressman Scott Perry (PA-10), Congressman Lloyd Smucker (PA-11), Congressman Guy Reschenthaler (PA-14), Congressman John Joyce (PA-13), and Congressman Fred Keller (PA-12) released a statement that summarized their belief that the Pennsylvania state legislature had taken unlawful actions regarding the 2020 election process which, in their opinion, resulted in a "highly questionable and inaccurate vote total".

### Official audits and recounts

As required by state law, all counties completed a post-election sample audit. With the exception of three counties, Pennsylvania's counties also participated in a voluntary risk-limiting audit pilot. Both types of audits confirmed the certified results.
Lycoming County completed a hand recount and did not find any major discrepancy. Butler County also completed a hand recount in two precincts and found no inaccuracies.

### Objection

On January 6, 2021, as Congress certified the Electoral College results confirming President-elect Joe Biden and Vice President-elect Kamala Harris as the winners, there was an objection to Pennsylvania's 20 electoral votes, brought forward by U.S. Representative Scott Perry of Pennsylvania's 10th congressional district and officially signed onto by U.S. Senator Josh Hawley of Missouri. The objection failed 7–92 in the Senate, and 138–282 in the House.