I live in Mississippi, which is traditionally considered one of the most racist parts of the country. If you spend any time here, you will notice that racism to some degree is still very prevalent. However, there is also a stigma against being "too racist". In Mississippi, just about everybody is prejudiced to some degree against everyone else. There are still fragments of that "old white" order, where people reminisce a time when the First Baptist Church ran everything, but radical or violent racism is gone and everyone tries, at least, to get along.
The worst of it can be found far away from the towns, in the isolated rural communities. Generally these communities are either very white or very black, and racism is encouraged by the community, so there is no stigma to keep it at bay.