Here's Where People Voted For Barack Obama And Donald Trump In The Presidential Election : NPR:
"Donald Trump's surprise victory on Tuesday came largely due to his over-performance of expectations in the Midwest.
His populist, anti-trade deal message was tailor-made for this region, but polling hadn't shown him pulling ahead of rival Hillary Clinton there.
But on Election Night, it was clear the surveys had missed a massive surge in some places and shifts in others of white, working-class voters in Iowa, Ohio, Michigan, Wisconsin and Pennsylvania that helped Donald Trump pull off the upset.
These maps show where the Trump surge happened and the places that flipped from supporting President Obama in 2012 to going for the Republican nominee and billionaire real-estate mogul just four years later."