California has the highest concentration of billionaires than any other U.S. state, with over 200 billionaires living in the Silicon Valley, the Bay Area, and Los Angeles and Orange counties. According to Forbes, Elon Musk, whose fortune has risen to $839 billion, remains at the top of the hierarchy of The Richest People in the World. Other notable billionaires include Larry Page, Sergey Brin, Jensen Huang, Henry Samueli, and Peter Thiel. Both wealth and membership in the exclusive billaionaire's club will hit all-time highs in 2026, highlighting the intensifying concentration of global economic power among the ultra-rich.