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They work hard for the money?
This year, boy-wonder billionaire and Facebook co-founder Mark Zuckerberg, 31, maintained his top spot on the list of the richest individuals 35 and under. His net worth is estimated at $33.4 billion, landing at the 16th-richest in the world.
But who else made the cut at an age when many are still drowning in student debt?
Bankrate took a look at published reports and compiled a list of 10, other than "Zuck," who are 35 and younger and at billionaire status. While some inherited their fortunes, most continue to work hard for their money in various fields.
Here are the top 10 in order of wealth.