720/km 2  (1,900/sq mi) is the density of residents in  the metro region of Delhi . The land area of the city is 153.33 sq mi (397.13 km 2 ) . The highest elevation of Delhi is 324 m (1,063 ft) . Delhi is located in Philippines . Kwon Young-jin , (Liberty Korea) is the mayor of Delhi . The population of the urban region is 3,372,090 . 8,600/km 2  (22,000/sq mi) is the density of inhabitents in  the urban region of Delhi . Delhi is the government of Bristol City Council . 57 + 5 is the area code of Delhi . This city is named after Christopher Columbus . The demonym of the city Delhi is Indori . The area of the city is 68.17 sq mi (176.56 sq km) . The city was incorporated in 1 October 1984 . The density of  people in Delhi is 850/km 2  (2,200/sq mi) . The water area of the city is 28.08 km 2  (10.84 sq mi) . Delhi is at an elevation of 9350 ft . The postal code of the city is 8320000
There are more than 21970 inhabitents per sq mi in the urban region of Delhi