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

President Donald Trump received 3,074,400 (54%) votes beating VP Joseph Biden who gained 2,603,677 (46%) by 470,723 votes in Ohio.

President Trump won 81 counties out of the 88 counties that make up Ohio. The record shows that VP Joe Biden won 7 counties.  

2020 OH Primary Election vs Presidential General Elections Counties Won              

Primary Elections

Presidential General Election

Primary Election

In the Primary, President Trump won 73 counties in a 3 way match up. VP Biden trailed behind him winning 15 counties, with Senator Sanders winning nothing in Ohio Primary.

2020 OH 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 2% increase for President Trump and a 2% decrease for VP Biden. These percentages are represented by a vote increment of 2,391,557 for Trump and 1,981,844 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 (Cuyahoga, Franklin and Hamilton), it becomes very difficult to win majorities in the smaller counties with out voter out reach and increased voter participation in them.

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

Cuyahoga, Franklin and Hamilton, three of the larger counties in Ohio, voted in favor of VP Joseph Biden giving him a 460k vote advantage out of those counties. However, President Trump's steady win at many of the other counties was enough to overcome that deficit, making him gain an upper hand in the State of Ohio.

Related References: 2020 Ohio Primary Election Story, 2016 Ohio Primary Election Story, 2012 Ohio Primary Election Story