KY has been added.
2012 statewide share of the white vote for Obama: 31.5%
I'm not sure of some of these numbers. I'm sure Campbell County was over 35%, since Obama did a bit better than that overall, and the county is very, very heavily white. (Most nonwhite people who I knew growing up lived in other counties.)
Well, unfortunately I can't see the chart, but I suspect that the white vote for Obama in Campbell county wasn't much greater than that--Obama only got 37% of the vote there and the county is about 3% minority.