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London is the second-most popular city.
Rich people love spending money on real estate, whether it's a loft in London or a mansion in Beverly Hills - or both.
Wealth-X, a firm that does research on ultra high net worth (UHNW) people, shared data with Business Insider on the residential addresses of people with a net worth of $30 million or more.
The firm found that 14,574 UHNW people own property - whether a primary home or a vacation spot - in New York, the most of any city in the world.
Below are the 17 cities where the world's richest people either live or own a vacation home.