The land area of the city is 16.0 sq mi (41.4 sq km) . The population of the urban region is Population: 3,160,000 (2006) . The postal code of the city is 130000 . 4,800/km 2  (12,000/sq mi) is the density of inhabitents in  the urban region of Karachi . The mayor of Karachi is Takele Uma Benti . Karachi is named for Christopher Columbus . The highest elevation of Karachi is 1,879 m (6,165 ft) . 3,351/km 2  (8,680/sq mi) is the density of people in Karachi . The city water area is 4.12 sq mi (10.67 km 2 ) . The population of the metro region is Population: 3,113,725  . The Karachi citys' lowest elevation is 0 ft . The province of the city Karachi is Jilin . Karachi is at an elevation of 5 m . Karachi is the government of Municipality of Quito . The coordinates of the city are 59°20′17″N 018°04′20″E﻿ / ﻿59.33806°N 18.07222°E﻿ / 59.33806; 18.07222 . (+20) 2 is the area code of Karachi . 210.9/km 2  (546.2/sq mi) is the density of residents in  the metro region of Karachi . The city was incorporated in November 7, 1861, as Denver City, C.T. . The city Karachi demonym is Recifense . Karachi is located in Sanma Province, Vanuatu
Official address of residents of the city Karachi has zip code 3000 00 -  3019 00