[Crawford]

Yeah, I think the Sunbelt isn't an easy answer. The desirable quarter in almost all the Sunbelt cities is in the city proper or nearby (Scottsdale, Highland Park, Buckhead, West LA, River Oaks) but these neighborhoods aren't really distinct from where the wealthy live in the suburbs of older, eastern cities. If the Main Line or Grosse Pointe or Bronxville were in the Sunbelt, they'd be in the city proper, given relative age.

Hartford is an extreme example of an Eastern metro, where there are basically no wealthy in city proper, but most of the wealthy live in older streetcar suburbs within biking distance of downtown. If you compare Hartford to Nashville, the geographic wealth distribution seems almost identical, even though almost all the Nashville wealth is in city proper. It's mostly just huge differences in relative age of metros and relative city proper boundaries.