Hey Bay Area good to see you back here!The Bay Area has wealth in all quadrants of the region:
San Jose & Santa Cruz=South
Napa, Santa Rosa and Vallejo=North
I do not not how true it is , but I have noticed the following , of course there are exceptions
in Many cities the west ends and the north areas of cities tend to be more wealthy than the east and south ends . How are these areas in your city , it could be both US and global .
In terms of income, the southeast of Brussels is by far the richest. But in general, income segregation in Brussels is much less severe than Paris for example.
Not for Brussesls. North and west are poor districts and south and east are rich districts.In Brussels the worst areas are immediately to the west and to the north of the city center. It is, though, a city of contrasts. It can change from a decayed area to a wealthy posh neighbourhood within a couple of blocks.