[7] In countries that use the short scale number naming system, a billionaire is someone who has at least a thousand times a million dollars, euros or pounds.
[13] While millionaires constitute only a small percentage of the population, they hold substantial control over economic resources, with the most powerful and prominent individuals usually ranking among them.
Forbes and Fortune magazines maintain lists of people based on their net worth and are generally considered authorities on the subject.
[14] According to a report by Hurun, a market research firm based in China, the global billionaire population stood at 3,381 in 2022.
Twenty-three percent of the world's millionaires got that way through paid work, consisting mostly of skilled professionals or managers.
[24] High-net-worth individuals (those with financial assets, not including the residence, greater than a million US dollars): According to wealth research group Wealth-X that released its latest UHNW Cities report, showing the residential footprint of the world's top ultra-high net worth (UHNW) individual cities.
Singapore has the second-highest concentration, followed by San Jose, the center of Silicon Valley, and the largest city in Northern California.
A quarterly report prepared by the Economist Intelligence Unit on behalf of Barclays Wealth in 2007 estimated that there were 16.6 million millionaires in the US.
In 2004 the United States saw a "33 percent increase over the 6.2 million households that met that criteria [sic] in 2003", fueled largely by the country's real estate boom.
[35] According to TNS Financial Services, Los Angeles County, California, had the highest number of millionaires,[36] totalling over 262,800 households in mid-2006.