The United States is home to 515 billionaires with a combined net worth of more than $2 trillion and many favour New York over other American cities to live in, says a report.
Notwithstanding the current economic uncertainty, Asia has recorded the largest increase in its billionaires club in the world with 18 new billionaires in 2013, making it the fastest-growing region, a report says.
At 53 years, China's billionaires are the youngest in the world, while the average age of India's super rich people is 63 years, a year older than the global average of 62.
New York City has the world's largest number of billionaires but Asian cities, which include Mumbai, dominate the list of top 20 billionaire places in the world, indicating that the region is at the beginning of a new cycle in wealth creation, says a report.
The global billionaire population reached a record 2,325 with the addition of 155 new billionaires in 2014, registering a rise of 7 per cent from 2013.
There is one billionaire for every three million people on the planet.