A head to head comparison of the Pennsylvania 2020 General Election gives us an idea of the break down of the voters.      

VP Joseph Biden received 3,375,145 (50.4%) votes beating President Donald Trump who gained 3,327,554 (49.6%) by 47,591 votes in Pennsylvania.

President Trump won 58 counties out of the 67 counties that make up Pennsylvania. The record shows that VP Joe Biden won 9 counties.

2020 PA Primary Election vs Presidential General Elections Counties Won              

Primary Elections

Presidential General Election

Primary Election

In the Primary, President Trump won 53 counties in a 3 way match up. VP Biden trailed behind him winning 14 counties with Senator Sanders winning none in Pennsylvania Primary.

2020 PA Presidential Primary vs Presidential General Elections w.r.t % Votes and Total Votes Won        

Presidential Primary Elections

Presidential Election

On a head to head count with the total votes between in VP Biden and President Trump between the Presidential Primary and General Elections, percentage (%) vote shift difference is a 5% increase for President Trump and a 5% decrease for VP Biden. These percentages are represented by a vote increment of 2,273,934 for Trump and 2,110,525 for Biden at the Presidential General Elections.

Presidential Primary Elections

Presidential General Elections

During the 2020 General elections, a lot of total number of votes were cast. Aside the Electoral Votes, Popular Votes came to the fore as well. Further details regarding overall total votes cast, percentage contributed by the various states, and the winner of Popular votes will be updated soon.

Top 15 Counties in Presidential Primary Elections vs Presidential General Elections

All Candidates (Presidential Primary Elections)

All Candidates (Presidential General Elections)

Primary Elections vs General Elections

These 15 counties play an important role in these primary elections. If a candidate, can get a sizable majority in the larger counties (Allegheny, Philadelphia and Montgomery), it is still possible for other candidates to catch up if they win many of the other counties.

Top 15 Counties Comparison in Primary Elections vs General Elections

Presidential Primary Elections
VP Joseph Biden

Presidential Primary Elections
President Donald Trump

Presidential General Elections
VP Joseph Biden

Presidential General Elections
President Donald Trump

Allegheny, Philadelphia and Montgomery, three of the larger counties voted in favor of VP Joseph Biden giving him a 773k vote advantage out of those counties. President Trump won many of the smaller counties convincingly, but fell shy off overcoming that deficit, making Biden gain an upper hand in the State of Pennsylvania.

Related References: 2020 Pennsylvania Primary Election Story, 2016 Pennsylvani Election Story, 2012 Pennsylvania Primary Election Story