Jamie Squire/Getty Images A Knight Frank Wealth report has ranked the countries around the world with the most billionaires. The US, China, and Germany came top, with China fast catching up. Some much smaller countries, like Taiwan and Switzerland, also made the cut. Visit Business Insider's homepage for more stories. Even though billionaires can pretty much choose to live wherever they want to in the world, it seems like most of them prefer the same few places. There are 1,732 billionaires in the world currently.