9 cities where wealth is soaring

The United States is still slowly recovering from the recession, and incomes across the nation have declined in recent years. Nationwide, median household income was $51,771 a year during the three-year period of 2010 to 2012, a decline of 5.8% compared with the previous three-year period of 2007 to 2009, when the U.S. median household income was $54,951 a year.

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