Report: U.S., China dominate global billionaires

The world has at least 1,453 billionaires, with about half of those residing in the U.S. and China, according to the Hurun Global Rich List.

In terms of cities, Moscow is home to the greatest number of billionaires with 76, followed by New York (70), Hong Kong (52), Beijing (41) and London (40).

"For every billionaire that Hurun Report has found, I estimate we have missed at least two, meaning that today there are probably 4,000 billionaires in the world," said Rupert Hoogewerf, chairman and chief researcher of Hurun Report, a Shanghai-based publishing group that tracks China's wealthy.

"Asia is home to the lion's share of billionaires on the planet with 608 individuals, followed by North America with 440 billionaires and Europe 324," said the report. "By country, the US was home to 409 billionaires, comfortably ahead of the 317 from China."

The billionaires on the list account for $5.5 trillion in personal wealth -- equivalent to the GDP of China, the world's second richest country, according to the report.