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

President Donald Trump received 554,019 (66%) votes beating VP Joseph Biden, who gained 286,911 (34%) by 267,108 votes in Idaho.

President Trump won 40 counties out of the 44 counties that make up Idaho. The record shows that VP Biden won 4 counties.  

2020 ID Primary Election vs Presidential General Elections Counties Won

Primary Elections

Presidential General Election

Primary Election

In the Primary, President Trump won 40 counties in a 3 way match up. Both VP Biden and Senator Sanders both trailed behind him winning 2 counties each in Idaho Primary.

2020 ID 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 441,646 for Trump and 233,840 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 10 counties play an important role in these primary elections. If a candidate, can get a sizable majority in the larger counties (Ada, Canyon and Kootenai), 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

Ada, Canyon and Kootenai, the three larger counties in Idaho, voted in favor of President Trump, giving him an 84k vote advantage out of those counties. This, combined with President Trump's steady win at many of the other counties, made him gain an upper hand in the State of Idaho.

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