The answer can be found in the energies of Feng Shui.
The cities which were growing up in the industrial revolution were growing when the cosmic energies were in the South West, West, and North West. People with money get to buy new construction. And with America growing from the east coast to the west coast, people didn't go just past the great location to build a city and then start building so as to backtrack and grow to the east.
Check out Feng Shui and find the direction that the good energy is coming from this year and just watch what happens in your town/city over the course of this year. You will see new growth or re-growth in the part of town being blessed with good energy.

Hindu in the U.S. means motel owner with a no interest loans and free grants from the gov'ment to build or buy the motel in the first place.
So, DUH.... Hindu has the highest wealth rates.