The population of the urban region is 7,860,781 . Johannesburg has 957,441 population . 2,900/km 2  (7,400/sq mi) is the density of people in Johannesburg . The density of  residents in  the urban region of Johannesburg is 2,300/km 2  (6,100/sq mi) . 9,616,000 is the population of the metro region of Johannesburg
There are more than 7323 people per sq mi in Johannesburg