The demonym of the city Chennai, Madras is Brasiliense . The land area of the city is 314.95 sq mi (815.72 km 2 ) . 1,100/km 2  (2,800/sq mi) is the density of people in Chennai, Madras . The city water area is 1.420 sq mi (3.677 km 2 )  13.73% . 4,800/km 2  (12,000/sq mi) is the density of inhabitents in  the urban region of Chennai, Madras . Chennai, Madras is at an elevation of 13 m . 26°10′S 28°18′E﻿ / ﻿26.167°S 28.300°E are the coordinates of the city. . The metro region has 16,100,000 population . The Chennai, Madras citys' lowest elevation is 5,740 ft  . On September 20, 1917 the city was incorporated . The province of the city Chennai, Madras is Cebu (geographically only) . The area of the city is Area: 116 km2 (45 sq mi) . The postal code of the city is 21500 . Chennai, Madras is the government of Bristol City Council . Chennai, Madras is located in Zulia . Chennai, Madras is named for Miami-Illinois:  shikaakwa  ,  (wild onion or wild garlic) .  The city area code is +966-12 . 3,372,090 is the population of the urban region of Chennai, Madras . The Chennai, Madras city highest elevation is 770 m (2,530 ft) . Armand Béouindé (since 2016) is the mayor of Chennai, Madras
314.95 sq mi area of the city Chennai, Madras is land