The area of the city is Area: 223 km2 (86 sq mi) . The city water area is 4.46 sq km  (1.72 sq mi) . The postal code of the city is 95100 . The land area of the city is 840 km 2  (325 sq mi) . The lowest elevation of Chennai Madras is 75 m  . The city was incorporated in 1842 . The metro region has 13,542,900 population . 01 is the area code of Chennai Madras . The city Chennai Madras province is Lusaka Province . The mayor of Chennai Madras is Oscar Malapitan . 2,300/km 2  (6,100/sq mi) is the density of inhabitents in  the urban region of Chennai Madras . The Chennai Madras city highest elevation is 33 m (108 ft) . The density of  residents in Chennai Madras is 9,821/km 2  (25,436/sq mi) (2017) . Chennai Madras is located in South Africa . The coordinates of the city are 33°27′S 70°40′W﻿ / ﻿33.450°S 70.667°W . The city Chennai Madras demonym is Durbanite . Chennai Madras is at an elevation of 990 m . The urban region has Population (2014): 5,160,512 population
There are less than 3027 residents per km 2 in the urban region of Chennai Madras