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