Actually Nashville’s real estate market is very expensive. Belle Meade a Nashville suburb has the honor of being the richest town in America
There is no richest town in America as a single individual moving anywhere could make it that overnight.
Also just prima facia there is no way belle mead is as rich as billionaires row Manhattan, Pacific Heights in SF or Bel Air in LA. Let alone the Hamptons/Jackson Hole zones.
By what metric is this city the richest?