This U.S. city has the highest share of superrich residents in the world — it’s not San Francisco, New York or Seattle By: MarketWatch July 02, 2021 at 13:32 PM EDT The global population of people worth $30 million or more grew by 1.7% in 2020. Read More >> Related Stocks: Adobe Systems Cisco Systems HP Inc Hewlett Packard Enterprise Comp Paypal Holdings