Walton, Koch, Mars: Forbes Lists Record 54 Billionaire Families in the United States

Forbes' 2026 ranking lists a record 54 billionaire families in the US, up from 45 in 2024. Their combined wealth reaches $1.9 trillion. Leading is the Walton family ($520 billion), followed by the Kochs ($157 billion) and Mars ($129 billion). Ten new families enter the list, including the Richards and descendants of Ross Perot.