Richard Florida has the rankings of where the super-rich around the world live:

London is the world’s top location for the super-rich, with 4,364 people with $30 million or more in assets. Tokyo is second with 3,575, followed by Singapore (3,227), New York (3,008) and Hong Kong (2,690). The table below shows the top 20 cities with the most ultra-high-net-worth individuals.

And if you control for population size, the list changes:

These lists have some overlap with the top global cities but there are some differences. For example, on the first list: Chicago and Los Angeles are typically in the top 10 for global cities but they don’t rate highly here. In other words, there are some different social forces at work as to where the rich live versus which cities are most influential. Some possible forces at work:

1. Perhaps the super-rich in a single country tend to all go to one place. In the United States, perhaps this is New York City which is heads and shoulders above anyone else. Super-rich people want to be where all the other super-rich people are.

2. Certain industries might be important here, particularly ones like global banks or the oil industry.

3. Certain cities have amenities that appeal to the super-rich. This could range from certain cultural opportunities or tax breaks or high-status (and expensive) properties.

The per capita list has even more differences. Auckland? Hamburg? Edinburgh? I’m guessing there are some interesting stories behind these conglomerations.