The demonym of the city Chennai, Madras is Indori . The highest elevation of Chennai, Madras is 2,715 m (8,907 ft) . The density of  inhabitents in Chennai, Madras is 2,700/km 2  (7,000/sq mi) . On 1842 the city was incorporated . The Chennai, Madras citys' lowest elevation is 3 ft . The mayor of Chennai, Madras is Cynthia Viteri . The density of  inhabitents in  the urban region of Chennai, Madras is 5,400/sq km  (14,000/sq mi) . The coordinates of the city are 0°57′50″N 74°47′47″W﻿ / ﻿10.96389°N 74.79639°W . The province of the city Chennai, Madras is Santiago Province .  The city area code is +966-12 . The postal code of the city is 9XXXXXX . Chennai, Madras is located in Angkor, Siem Reap, Cambodia . Chennai, Madras is the government of National Park Service . 1,275/km 2  (3,300/sq mi) is the density of people in  the metro region of Chennai, Madras . The area of the city is Area: 619 km2 (239 sq mi) . The metro region is Area: 1,152 km2 (445 sq mi) in area . Chennai, Madras is at an elevation of 840 m . The urban region is Area : 251 km2 (97 sq mi) in area . The land area of the city is 11,609.91 km 2  (4,482.61 sq mi)
On November 7, 1861, as Denver City, C.T. the city was awarded the legal declaration of a municipal charter.