4,500 sq mi (11,700 km 2 ) is the area of the metro region of Chennai, Madras . The city land area is 527 km 2  (203 sq mi) . The population of the urban region is 1,592,492 (2016 Census) . The demonym of the city Chennai, Madras is Alexandrian, Alexandrine (Arabic: إسكندراني‎) . The density of  people in Chennai, Madras is 1,300/km 2  (3,400/sq mi) .  The city area code is 22 . 35°41′49″N 0°37′59″W﻿ / ﻿35.69694°N 0.63306°W are the coordinates of the city. . The postal code of the city is 1100 . The city water area is 430 km 2  (165 sq mi)  33% . Chennai, Madras is located in Republic of the Congo . Chennai, Madras is named for Quitu . 464.71/km 2  (1,203.6/sq mi) is the density of inhabitents in  the urban region of Chennai, Madras . 2,121 km 2  (819 sq mi) is the area of the city namedChennai, Madras . Faud al Muhammed Sisi is the mayor of Chennai, Madras . Chennai, Madras is at an elevation of 82.97 m . The density of  inhabitents in  the metro region of Chennai, Madras is 2,500/km 2  (6,600/sq mi) . The lowest elevation of Chennai, Madras is 0 ft . The city province is Misamis Oriental (geographically only)
Chennai, Madras is located at 0°57′50″N 74°47′47″W﻿ / ﻿10.96389°N 74.79639°W