World Richest Person 2025 Top 20. Here are the 10 cities with the most billionaires. +9 | total net worth:.

Interestingly, bill gates, who reigned as the world’s richest person for almost three decades starting in 1995, has come down the ranks as the world’s ninth richest,. Warren buffett, who has been on the list of the world’s richest 20 people for years, is in 10th spot.