8°50′18″S 13°14′4″E﻿ / ﻿8.83833°S 13.23444°E are the coordinates of the city. . The population of the metro region is Population: 12,491,300 (2016) . On 1871-11-04 the city was incorporated . The mayor of Tianjin is Oscar Moreno (PDP-Laban) . 7,860,781 is the population of the urban region of Tianjin . Tianjin is the government of U.S. National Park Service . The density of  residents in Tianjin is 11,312/km 2  (29,298/sq mi) . The Tianjin city highest elevation is 2,715 m (8,907 ft) . The city province is Lusaka Province . Tianjin is named for Christopher Columbus . Tianjin is located in Brazil . The city has the postal code 95100 . The demonym of the city Tianjin is cuzqueno/a . 2,200/km 2  (5,700/sq mi) is the density of residents in  the metro region of Tianjin . Tianjin has Population (2015): 2,200,000 population . The density of  people in  the urban region of Tianjin is 3,300/km 2  (8,600/sq mi) . (+593) 4 is the area code of Tianjin . The city water area is 21 km 2  (8 sq mi) . The city land area is 48.42 sq mi (125.41 km 2 )
Less than  62 km 2 area of the city Tianjin is land