5,400/sq km  (14,000/sq mi) is the density of residents in  the urban region of Chennai, Madras . The postal code of the city is 9XXXXXX . 2,700/km 2  (7,000/sq mi) is the density of inhabitents in Chennai, Madras . Area: 1,152 km2 (445 sq mi) is the area of the metro region of Chennai, Madras . 0°57′50″N 74°47′47″W﻿ / ﻿10.96389°N 74.79639°W are the coordinates of the city. . Chennai, Madras is located in Angkor, Siem Reap, Cambodia . The land area of the city is 11,609.91 km 2  (4,482.61 sq mi) . Chennai, Madras is the government of National Park Service . The city Chennai, Madras demonym is Indori . The city province is Santiago Province .  The city area code is +966-12 . The Chennai, Madras citys' lowest elevation is 3 ft . Cynthia Viteri is the mayor of Chennai, Madras . The density of  inhabitents in  the metro region of Chennai, Madras is 1,275/km 2  (3,300/sq mi) . The city is Area: 619 km2 (239 sq mi) in area . Area : 251 km2 (97 sq mi) is the area of the urban region of Chennai, Madras . The Chennai, Madras city highest elevation is 2,715 m (8,907 ft) . On 1842 the city was incorporated . Chennai, Madras is at an elevation of 840 m
Chennai, Madras was constituted as a city in 1842