Billionaires
Overview
A billionaire is anyone with a net worth of over $1B, whether their assets are liquid, illiquid, or a mix of both. Today, the world has a record number of 3,428 billionaires, with a combined net worth of about $20T as of March 2026. The United States is home to almost 1,000 billionaires—more than any other country in the world.
The number of billionaires in the US has grown dramatically in recent years—in the 1990s, for instance, America was only home to about 60 or 70 billionaires. Beyond the forces that have boosted American upper-class net worths more broadly, such as rising real estate values, stock prices, and the growing prevalence of 401(k) plans and IRAs, the big tech boom and favorable capital gains tax treatment have been significant drivers of billionaire class growth specifically.
Some argue that the rise in billionaires is a net good for Americans and the US economy at large, as they often create a significant number of jobs at companies they own and operate while donating to philanthropic institutions. Critics of billionaires have argued that their large concentrations of wealth and relatively low tax rates exacerbate economic inequality.
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