How Did Trump Do in Counties That Backed Him in 2016?

President-elect Joseph R. Biden Jr. won the popular vote by more than five million — and his margin is expected to grow as states finish counting. Still, results so far show that President Trump’s support remained strong in most of the counties that voted for him in 2016. Here’s how.

Mr. Trump won more than 2,600 counties in 2016. Each of them is represented here by a line, which shows the county’s margin in presidential elections since 2008. The line’s width is sized to the county’s voting population.