The city has the postal code 090101 to 090158 . The Karachi citys' lowest elevation is 2,838 ft . The province of the city Karachi is Lusaka Province . Zhang Guoqing is the mayor of Karachi . The metro region has 2,452,656 population . The density of  residents in  the urban region of Karachi is 8,600/km 2  (22,000/sq mi) . The Karachi city highest elevation is 1,390 m (4,560 ft) . 178.46 km 2  (68.90 sq mi) is the area of the city namedKarachi . Karachi is located in Zulia . Karachi is at an elevation of 7380 ft . 35°11′N 136°54′E﻿ / ﻿35.183°N 136.900°E are the coordinates of the city. . The density of  inhabitents in Karachi is 7,400/km 2  (19,000/sq mi) . The density of  people in  the metro region of Karachi is 1,275/km 2  (3,300/sq mi) . The city Karachi demonym is Evanstonian . Karachi is named for Moses Cleaveland . The water area of the city is 0.68 sq mi (1.77 km 2 ) . Karachi is the government of National Park Service
There are more than 8620 residents per sq km in the urban region of Karachi