Owen Zidar and Eric Zwick show that America’s wealthy aren’t concentrated only on Wall Street or in Silicon Valley. Millions built fortunes the old-fashioned way: owning private businesses in communities all over the country.
When most people picture the rich in America, they picture the Forbes 400.
Musk. Bezos. Zuckerberg. Buffett. Private equity billionaires, hedge fund managers, tech founders, and family dynasties.
That picture is real. It’s just incomplete.
In The Everywhere Millionaire, economists Owen Zidar and Eric Zwick make a compelling case that much of America’s wealth is hiding in plain sight.
It’s the owner of the commercial HVAC company. The dentist who expanded one practice into several. The car dealer. The distributor. The real estate developer. The restaurant operator. The contractor whose trucks you’ve seen around town for twenty years.
They call them Main Street Millionaires.
And there are millions of them.
Who Are America’s Rich?
The authors define a rich household as one with at least $5 million in net wealth.
By that measure, nearly five million American households qualify. More than two million have at least $10 million, and roughly 65,000 have $100 million or more.
The surprise is where much of that wealth came from.
Most wealthy households own private businesses. According to Zidar and Zwick, roughly three-quarters of households worth at least $10 million own one, as do nearly all households above $100 million.
Their estimate of the Main Street Millionaire population: about three million private-business owners with average wealth around $25 million.
Collectively, their wealth is more than thirteen times that of the Forbes 400.
That changes the picture considerably.
America’s wealthy aren’t simply a few thousand people clustered around Manhattan, Silicon Valley, Miami, and a handful of other financial centers.
They’re everywhere.
Ordinary Businesses. Extraordinary Wealth.
One of the most important ideas in the book is that extraordinary wealth doesn’t always come from extraordinary-looking businesses.
A mundane business can create extraordinary wealth.
Automotive dealerships. Medical practices. Construction companies. Equipment contractors. Professional firms. Restaurants. Real estate businesses. Distributors. Manufacturers.
These companies rarely make CNBC.
Many never become household names.
They don’t need to.
The owner may spend 30 years building cash flow, reinvesting profits, acquiring competitors, buying real estate, improving margins, and compounding the value of a business nobody outside the local market has ever heard of.
Then one day that “small business” is worth $20 million, $50 million, or $100 million.
That’s one reason these families have historically been difficult to see. Public-company ownership is reported. Private-business ownership generally isn’t. Zidar and Zwick describe private-business owners as something like the “dark matter” of American wealth: economically enormous but largely invisible in the conventional picture of who owns the country’s wealth.
How They Found Them
The research behind the book is what makes it especially interesting.
Beginning with work for the U.S. Treasury Department in 2014, Zidar, Zwick, and their collaborators built a database connecting tax information about businesses with their owners and employees.
That allowed them to study private-business ownership across the income spectrum in a way that hadn’t previously been possible.
What they found changed their view of wealth and inequality.
One of the most common routes into America’s highest income and wealth groups wasn’t becoming CEO of a Fortune 500 company.
It was owning a large stake in a successful private business.
That sounds obvious once you see it.
But it’s largely missing from the popular conversation about wealth.
The Rise of the Pass-Through Business
The book also traces the extraordinary growth of pass-through businesses: S corporations, partnerships, LLCs, and sole proprietorships whose profits generally flow through to their owners.
Today these structures dominate American business.
The authors argue that changes in the tax code helped accelerate that transition, alongside falling interest rates, technological improvement, globalization, deregulation, economic growth, and rising business valuations.
The result was a powerful compounding machine for successful owners.
Build a profitable business. Keep meaningful ownership. Reinvest. Expand. Let the enterprise compound.
For many families, the business becomes not merely their source of income but the dominant asset on their balance sheet.
That’s how someone who may never think of himself as an “investor” can quietly become worth $10 million, $25 million, or considerably more.
The American Dream Is More Local Than It Looks
The geography may be the book’s most important insight.
The stereotypical rich live in Manhattan, Greenwich, Palm Beach, Silicon Valley, or Los Angeles.
Main Street Millionaires live almost everywhere.
Fort Wayne. Omaha. Baton Rouge. Topeka. Small cities. Suburbs. Rural communities.
You probably know some.
They may sit beside you at dinner, sponsor the local baseball team, serve on a hospital board, own land outside town, or employ hundreds of people without attracting much attention.
That matters because it changes how we think about wealth creation in America.
Wealth isn’t simply concentrated geographically around financial markets and technology companies. Private enterprise has created substantial pools of family wealth throughout the country.
The book’s title is the thesis:
The millionaire is everywhere.
From Business Owner to Investor
There’s another implication that matters enormously to me.
These people generally became wealthy by being operators, not investors.
Their edge came from something they could control.
They understood their customers. Their employees. Their industry. Their costs. Their competition. Their balance sheet. When something went wrong, they could work the problem.
Their wealth may have been highly concentrated, but it was concentrated in the asset they understood better than anyone else.
Then they sell it.
And everything changes.
A $20 million business becomes $20 million of financial capital. The owner who spent decades controlling his economic engine suddenly owns stocks, bonds, funds, private investments, real estate, and other assets whose outcomes he can’t control.
That isn’t simply a liquidity event.
It’s a risk conversion.
The skill required to create the wealth isn’t necessarily the skill required to preserve it.
That may be the most consequential transition in the entire wealth cycle.
The Bigger Lesson
The Everywhere Millionaire isn’t really a book about millionaires.
It’s a book about where wealth actually comes from.
Much of America’s serious wealth was created by people who owned businesses, retained equity, reinvested, accepted concentrated risk, and compounded for decades.
They didn’t necessarily look wealthy while they were doing it.
Then the business value became visible.
For investors and advisors, that leads to an important distinction:
A family with $5 million in an investment portfolio is wealthy.
A family with $2 million liquid and a $20 million privately owned company may be considerably wealthier.
The wealth simply hasn’t become a portfolio yet.
That’s the insight I’d take away from The Everywhere Millionaire.
America’s wealthy are hiding in plain sight. They built businesses, not portfolios. Eventually, though, business wealth becomes financial wealth—and managing that transition may be as important as creating the fortune in the first place.