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

VP Joseph Biden received 671,427 (51%) votes beating President Donald Trump who gained 634,701 (49%) by 36,726 votes in Nevada.

President Trump won 15 counties out of the 17 counties that make up Nevada. The record shows that VP Joe Biden won 2 counties.  

2020 NV Primary Election vs Presidential General Elections Counties Won              

Primary Elections

Presidential General Election

Primary Election

In the Primary, Sanders won 12 counties in a 4 way match up. Buttigieg trailed behind him winning 4 counties with Steyer winning 1 county and VP Biden winning nothing in Nevada Primary.

2020 NV 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 21% increase for VP Biden and a 49% increase for President Trump. These percentages are represented by a vote increment of 668,500 for VP Biden and 639,677 for President Trump 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 (Clark and Washoe), 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

Clark and Washoe, the two larger counties in Nevada, voted in favor of VP Biden giving him a 102k vote advantage out of those counties. President Trump won all the other counties, but it wasn't enough to overcome the deficit, making VP Biden gain an upper hand in the State of Nevada.

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