The supplied sources do not give a precise U.S. count. Henley & Partners counts 29,350 people worldwide with at least US$100 million in liquid investable assets in 2024, while Knight Frank counts people by net worth and says the U.S. has over 40% of that global group. These figures use different definitions and cannot be combined into an exact U.S. estimate.
Why there isn't one clear U.S. number
A centimillionaire is commonly understood as someone with at least US$100 million, but the total depends on what "wealth" includes. Henley & Partners' 2024 report counts people with US$100 million or more in liquid investable assets. Its definition includes listed holdings, cash and debt-free residential property. The report estimates 29,350 such people worldwide, but the supplied figures do not state how many live in the United States. (Henley & Partners, 2024)
Knight Frank measures a different group: people with net worth above US$100 million. Its 2025 report says the United States is home to over 40% of people in that global bracket. (Knight Frank, 2025) That percentage cannot be applied to Henley's 29,350, because one figure is based on net worth and the other on liquid investable assets. The supplied Knight Frank figures also do not give the total U.S. count.
What the available U.S. figures tell us
Henley's city data gives a sense of where some of the world's centimillionaires are concentrated. In 2024, New York had 744 people with at least US$100 million in liquid investable assets, the Bay Area had 675 and Los Angeles had 496. The United States had 15 cities in Henley's top 50. (Henley & Partners, 2024) These are city counts, not a national total, and should not be added to produce one: the supplied information does not say whether the city figures overlap through residence or how the report assigns people to cities.
Henley also reports that the U.S. accounts for over 30% of global liquid investable wealth, or US$67 trillion. (Henley & Partners, 2024) That is a measure of wealth, not a count of centimillionaires. It helps describe the U.S. share of global wealth, but it does not establish how many individuals meet the US$100 million threshold.
The careful answer, then, is that the supplied sources do not establish an exact U.S. count under a single definition. They show a sizeable U.S. presence in both city-level liquid-wealth data and Knight Frank's global net-worth bracket, but those measures should be kept separate.
From Family Office Club events
But the subtitle says 100 million plus net worth individuals in case people don't know what a centimillionaire is
Sources
- Henley & Partners, Centi-Millionaire Report 2024. henleyglobal.com
- Henley & Partners, Centi-Millionaire Report 2024: Mapping the Centi-Millionaire Boom. henleyglobal.com
- Knight Frank, Global wealth trends: Knight Frank's 2025 Wealth Report. knightfrank.com
- Family Office Club event transcript
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