I don't mean to sound racist, but.... I don't think there is anyplace in the USA that is 70% + Black, and is a nice place to live. Being white, I know enough to leave ASAP when in Detroit,North Vegas,DC,etc.
alot of those areas is where you have high poverty rates. ill still maintain that you cant run away from crime. i live in a overhwelmingly white neighborhood and in the newspaper theres crimes daily. arson, theft, assault. hell my sound system was stolen and a neighbors house was vandalized.
and my city was rated some shit like 26th out of the top 100 cities to live in.
point of the comment is you have a higher chance of crime in those cities, but running to the burbs doesnt mean you're going to be away from crime either. false sense of security those people have. especially with the typical american these days.