This is a full list of all the US centi-millionaire hotspots that are tracked by our research partners at New World Wealth. The centi-millionaires are arguably the most important wealth band when it comes to wealth creation due to the large percentage of entrepreneurs in this segment. It is worth noting that most of the companies on the Fortune 500 and S&P 500 were started by individuals who went on to become centi-millionaires.