Where the World's Millionaires Live

By Nikhil Hutheesing - 2013-05-30T16:00:09Z

Photograph by Stephen Wilkes/Gallery Stock

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6. United States    

Population: 316.6 million
Percentage of millionaire households: 4.9%

The U.S. counted the greatest number of millionaire households in 2012: 5.87 million, up from 5.1 million in 2011. In December 2012, the U.S. Federal Reserve announced that it would prop up the economy by purchasing $85 billion per month of mortgage-backed and Treasury securities to hold down long-term interest rates and keep short-term rates near zero. America's -- and the world's -- richest person is Bill Gates, co-founder of Microsoft, with a current fortune of about $72.5 billion, up from $60 billion in May 2012.