The United States has more billionaires than the next five countries combined. According to the Forbes 2025 Billionaires List, there are over 813 billionaires in the US with a combined net worth exceeding $6.2 trillion. Below the billionaire tier, America has roughly 22 million millionaires and over 9,000 individuals with a net worth above $100 million. But wealth in America is not evenly distributed geographically — it clusters in specific states, cities, and ZIP codes with remarkable concentration.
The States Where the Ultra-Wealthy Live
California: The Wealth Capital of the USA
California has more billionaires than any state by far — and it's not particularly close. Silicon Valley alone generates extraordinary concentrations of wealth through the tech industry. As of 2025:
- California is home to over 186 billionaires, including Elon Musk (Tesla/SpaceX), Larry Ellison (Oracle), Larry Page and Sergey Brin (Google), and Mark Zuckerberg (Meta).
- Atherton, California — a small Silicon Valley enclave of 7,000 people — has had the highest median home sale price in the country every year since 2014, with medians regularly exceeding $7–9 million.
- Bel Air, Beverly Hills, and Malibu in Los Angeles County represent the entertainment and old-money end of California wealth, with estates routinely selling for $20–100 million+. The most expensive home ever listed in the US was the $295 million "The One" mega-mansion in Bel Air.
New York: Old Money, Wall Street, and the New Ultra-Rich
New York City remains the financial capital of the world and the second-highest billionaire concentration in the US. Manhattan's Upper East Side — particularly the stretch of Fifth Avenue overlooking Central Park — is arguably the most prestigious address in American real estate. The Hamptons on Long Island serve as the summer playground of the financial elite, with oceanfront compounds in East Hampton and Southampton changing hands for $50–200 million.
Greenwich, Connecticut — just over the New York state line but part of the greater NYC wealth ecosystem — houses extraordinary concentrations of hedge fund wealth. Hedge fund giants including Bridgewater Associates, Tudor Investment Corp, and AQR Capital Management are headquartered here, making lower Fairfield County one of the wealthiest areas in the world per square mile.
Florida: The Tax Haven of America
Florida has surged in ultra-wealthy population over the past decade, driven by a single irresistible factor: no state income tax. Combined with no estate tax and warm weather, Florida has pulled billionaires and centimillionaires from New York and California at unprecedented rates since 2020. Palm Beach is the epicenter — a barrier island of 10,000 full-time residents that houses an extraordinary density of inherited and earned wealth, including numerous hedge fund managers, private equity principals, and the Trump Organization's Mar-a-Lago estate. Fisher Island off Miami has the highest per-capita income of any census-designated place in the country.
Texas: New Money, Big Attitude
Texas — also with no state income tax — has become a major magnet for wealth relocation. Austin's tech boom, Dallas's finance and real estate wealth, and Houston's energy fortunes create a diverse luxury economy. Elon Musk officially relocated to Texas. Highland Park (Dallas) and River Oaks (Houston) are among the wealthiest ZIP codes in the country.
What Does American Luxury Actually Look Like?
For America's ultra-wealthy, luxury in 2025 means:
- Private aviation: NetJets, the world's largest private jet company, has over 7,000 US owners. Ultra-HNW individuals maintain their own aircraft — typically Gulfstream G650s, Global 7500s, or, for the truly rarefied, Boeing 737 BBJs. Elon Musk's well-documented Gulfstream G700 logged over 160 flights in a single year.
- Multiple residences: Having a primary residence plus a Hamptons or Palm Beach house plus a Aspen ski chalet is standard for centimillionaires. Mega-wealthy individuals often own 5–10+ properties globally.
- Super yachts: The US is the world's largest market for yachts over 24m. Seattle and Fort Lauderdale are the top US superyacht hubs. Jeff Bezos's sailing superyacht Koru is 127 meters — one of the largest sailboats ever built.
- Ultra-luxury automobiles and car collections: Jay Leno's 186-vehicle collection in Burbank, California is the most famous example of a distinctly American wealthy-person hobby.
- Trophy art: The US dominates global art auction results. In 2024, a single sale at Sotheby's New York exceeded $700 million. Wealthy collectors like Ken Griffin (Citadel hedge fund) have spent over $1 billion on art.
The Rise of "Stealth Wealth"
Interestingly, many of America's wealthiest individuals — particularly in tech — have moved away from conspicuous consumption toward what trend-watchers call "stealth wealth": preferring quiet luxury brands (Loro Piana, Brunello Cucinelli), understated vehicles (Volvo, Rivian instead of Lamborghini), and homes that are spectacular in quality and size but not in showiness. Warren Buffett still lives in the same Omaha house he bought in 1958 for $31,500. For a certain type of American billionaire, the real flex is appearing not to care about flexing.