The Bay Area is sort of an anomaly though. The Silicon Valley industry combined with mass immigration of highly educated Asians. Overall it is very well integrated, but I'm sure on the east side of SJ you can still find some scary hoods. You know Santana Row used to be one of the most gang-infested parts of town before it was bulldozed and gentrified. I noticed something similar happened up in East Palo Alto. Oakland and Richmond though, they still look pretty rough. If you're wondering, yes I used to live in San Jose and Milpitas.