I recently heard Michael Medved discussing how many Americans believe in God. According to this survey from 2011, the vast majority believe there is a God. It seems that the belief in God by college graduates is a little higher than those with just a high school education, debunking claims that college causes one to lose his belief in God. The only exceptions are those with post graduate degrees.
According to a recent Rasmussen poll, 77% of Americans believe Jesus rose from the dead.
I don't think this makes people Christians, but it is certainly hopeful!