I found this interactive map on Portfolio.com showing the toll of the Great Recession on major US cities.  The data is a little dated, 2008, but gives you an idea of some areas that have gained wealth and those that have lost wealth.   Newport Beach, CA is leading the way with a with 28.6% of households earning over $200,000/yr and Reading, PA without a single household earning $200,ooo.

CLICK ON THE IMAGE BELOW FOR THE INTERACTIVE MAP