The city land area is 840 km 2  (325 sq mi) . The Chennai Madras citys' lowest elevation is 246 ft .  The city area code is 01 . The city Chennai Madras province is Lusaka Province . The mayor of Chennai Madras is Oscar Malapitan . The Chennai Madras city highest elevation is 33 m (108 ft) . The water area of the city is 4.46 sq km  (1.72 sq mi) . Area: 223 km2 (86 sq mi) is the area of the city namedChennai Madras . Chennai Madras is located in South Africa . Chennai Madras is at an elevation of 990 m . Population (2014): 5,160,512 is the population of the urban region of Chennai Madras . The density of  people in  the urban region of Chennai Madras is 2,300/km 2  (6,100/sq mi) . The city Chennai Madras demonym is Durbanite . 9,821/km 2  (25,436/sq mi) (2017) is the density of people in Chennai Madras . The city has the postal code 95100 . On 1842 the city was incorporated . The coordinates of the city are 33°27′S 70°40′W﻿ / ﻿33.450°S 70.667°W . The population of the metro region is 13,542,900
People of the city Chennai Madras are called by Capetonian