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