The world's wealthiest city, New York City, has 340,000 resident millionaires, while Tokyo, which is second on the list, has 290,300 resident millionaires. The Bay Area is home to 285,000 millionaires and the number in London stands at 258,000. Singapore, Los Angeles, Hong Kong and Beijing have 240,100, 205,400, 129,500 and 128,200 millionaires, respectively.