colli park is a suburb of atlanta but its still got its rough areas like any other major city. atlanta, the city, is not a huge city but the metro area is (over 4 million people). most people, when they think of the suburbs, they think nice homes, low crime, and shit like that. but in certain suburban towns (especially in the atl) its worst to live there than the actual city.
you got cities such as east point, decatur, union city, riverdale,stone mountain, that are all predominantly black and all of which have its good and bad areas. like dude said, it ain't no different from what long beach or compton is to l.a.