Most surprising single county of 2012?

[Sol]

In hindsight though, it is a bit shocking that Obama did so well in Ohio given what happened in 2016.

If I remember correctly, Obama actually underperformed his polling in Ohio, where he had a fairly narrow but consistent lead.

Obama's strong performance in a lot of declining ex-industrial communities isn't too surprising if you remember that Obama's 2012 campaign ran to the left on economic issues, smearing Mitt Romney's record at Bain Capital, opposition to the auto bailout, etc.