Number of millionaires per city (2015) (by Knight Frank)

The following is a list of the cities with the most number of US $  millionaires as of December 2015 according to data compiled for the Knight Frank Wealth Report by New World Wealth.

Reference 1: Number of US$ millionaires (2015).

Reference 2: London, New York City, Tokyo, Singapore, Hong Kong, Los Angeles, Frankfurt, Chicago, San Francisco and Paris.

Source: http://en.wikipedia.org/wiki/Millionaire