[eavc]

"The city is quite segregated (mexicans, white, black, asian, etc are in certain areas and don’t often mix)."

Eh, kind of. It's more segregated by socio-economics just like everywhere else. As a counterexample, many areas in Gwinnett contain Hispanics, whites, Asians, and blacks. Many of the neighborhoods on the East and South of Atlanta contain whites and blacks in mixed neighborhoods. I don't know that the wealthy parts of town are any less diverse than the sample of wealthy people overall. Mostly white, some black, some Indian, some Chinese, etc.