The United States remains the country with the highest number of "ultra high net worth" (UHNW) residents, defined as those with a net worth of $30 million or more, in the world. That's according to data firm Wealth-X, which recently released its seventh edition of the "World Ultra Wealth Report."

The U.S. is home to 81,340 UHNW individuals, accounting for 31% of the global ultra wealthy population. That's more than the next five countries combined, including second-ranked China, third-ranked Japan and fourth-ranked Germany.