3.9% since current population is 8.8m. NY is not far behind. https://www.worldatlas.com/articles/cities-boasting-the-most-millionaires-around-the-globe.html ht

3.9% since current population is 8.8m. NY is not far behind. https://www.worldatlas.com/articles/cities-boasting-the-most-millionaires-around-the-globe.html https://www.worldatlas.com/articles/cities-boasting-the-most... Bear in mind that these days having a million doesn't make you rich like it used to, or even able to retire much earlier. The line for super-rich is currently drawn at $30M, then there's only ~4.5k people who qualify in London.