North Dakota with 9,051 millionaires.
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According to the 2013 wealth research study conducted by Phoenix Marketing International, the state of Delaware ranked ninth for the most millionaires in the US. Delaware has 21,679 millionaires living in its state.
The state with the most millionaires per capita is Maryland. Over seven percent of all households in Maryland have assets of one million dollars.
Here is a great list of business and celebrity black millionaires. http://www.forbes.com/2009/05/06/richest-black-americans-busienss-billionaires-richest-black-americans.html
Honolulu has the most millionaires per capata
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Perth has the highest number of self made millionaires in the world.
Yes. According to statistics from 2004, there were approximately 15,000 millionaires in Oregon, 0.4% of the state's population.