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Not every billionaire in the US was rich enough to make the list.
The Forbes 400 list features the wealthiest billionaires in the US, but not every American with three commas in their net worth made the cut.
A record 169 billionaires, including Facebook's Sheryl Sandberg and Under Armour's Kevin Plank, fell short of the minimum net worth required to land them among the richest of the rich in the US. All members of the 2017 Forbes 400 have a net worth of at least $2 billion, which is 18% higher than the $1.7 billion minimum required in 2016.
To determine the ranking, Forbes took into account stakes in public and private companies, real estate holdings, and other assets including art, jewelry, cars, and planes. All net worth estimates are current as of October 17, 2017.
Scroll through to see America's richest people, and how much their fortune is worth.