The population of the metro region is 13,542,900 . 33°27′S 70°40′W﻿ / ﻿33.450°S 70.667°W are the coordinates of the city. . The urban region has Population (2014): 5,160,512 population . The density of  people in  the urban region of Chennai Madras is 2,300/km 2  (6,100/sq mi) . Chennai Madras is at an elevation of 3250 ft . The city province is Lusaka Province . The highest elevation of Chennai Madras is 33 m (108 ft) . On 1842 the city was incorporated . 01 is the area code of Chennai Madras . The land area of the city is 840 km 2  (325 sq mi) . Chennai Madras is located in South Africa . The density of  residents in Chennai Madras is 9,821/km 2  (25,436/sq mi) (2017) . The lowest elevation of Chennai Madras is 246 ft . The demonym of the city Chennai Madras is Durbanite . The city water area is 4.46 sq km  (1.72 sq mi) . The mayor of Chennai Madras is Oscar Malapitan . The postal code of the city is 95100 . The city is Area: 223 km2 (86 sq mi) in area
PS use 95100 to post mail in the city