Johannesburg is the city in South Africa with the highest number of millionaires and billionaires, according to the World Cities Review.
Joburg is home to 17 600 millionaires and two billionaires, accounting for a total wealth of over three trillion rand.
Cape Town, Durban and Pretoria have also made it onto a list of the wealthiest cities in the world.
The fastest-growing cities in the world are Beijing, Shanghai, Mumbai and Sydney, while the world's wealthiest cities are London, New York and Tokyo.
Wealth intelligence company, New World Wealth, in their report said the number of millionaires and billionaires in South Africa is decreasing.
Released yesterday, the report showed that there were 40400 dollar millionaires and seven dollar billionaires whose combined wealth was about R8-trillion, which is seven times the national budget.
The number of millionaires who live in Cape Town dropped from 8900 last year to 7400 this year.
Durban has 2700 millionaires and one billionaire, with an estimated worth of about R630-billion.
