<p><div class="KonaFilter image-container display-table float_right click-to-enlarge"><div><div class="image on-image"><a title_source="David Ramos/Getty" title_caption="Facebook CEO Mark Zuckerberg is only 31, but he's worth more than  $47 billion." class="zoomin" href="https://static-ssl.businessinsider.com/image/56434b639dd7cc22008c9146-960/zuck-18.jpg"><span class="sprites click-to-enlarge-icon" title="Click to enlarge"></span><img src="https://static-ssl.businessinsider.com/image/56434b639dd7cc22008c9146-3770-2827/zuck-18.jpg" alt="mark zuckerberg" data-mce-source="David Ramos/Getty" /></a><p class="source"><span>David Ramos/Getty</span></p><p class="caption">Facebook CEO Mark Zuckerberg is only 31, but he's worth more than  $47 billion.</p></div><p></p></div></div>When it comes to age, wealth doesn't discriminate - billionaires can be found in every phase of life.</p><p><a href="http://www.wealthx.com/home/">Wealth-X</a>, a firm that researches and maintains a database of ultra-wealthy people, compiled a list of the richest person in every decade, from their 20s through their 90s.</p><p>From tech billionaires to <keyword id="6354851" type="ORGANIZATION" weightage="60" keywordseo="Retail">retail</keyword> moguls and a secretive heiress, here are the people with more money than anyone else in their age group.</p>

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The richest person in their 20s, 30s, 40s, and up

David Ramos/GettyFacebook CEO Mark Zuckerberg is only 31, but he's worth more than $47 billion.When it comes to age, wealth doesn't discriminate - billionaires can be found in every phase of life.Wealth-X, a firm that researches and maintains a database of ultra-wealthy people, compiled a list of the richest person in every decade, from their 20s through their 90s.From tech billionaires to retail moguls and a secretive heiress, here are the people with more money than anyone else in their age group.

David RamosGettyFacebook CEO Mark Zuckerberg is only 31, but hes worth more than  47 billion. When it comes to age, wealth doesnt discriminate  billionaires can be found in every phase of life.

The richest person in their 20s, 30s, 40s, and up

Emmie Martin,Melissa Stanger

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