http://www.scribd.com/doc/293729705/CBS-News-December-2015-Battleground-Tracker-South-Carolina
Hillary leads age demographics 30 and older. 18-29 did not have a sample size large enough to show a statistic, and I'm willing to bet that demographic is pretty close. Hillary leads AA's 78% to 19%. Looking at the rest of the results it appears SC could still move quite a bit in either direction as many still haven't heard enough from Bernie, a fair amount don't like what Hillary is saying as a candidate, and many are still willing to change who they support.