The coordinates of the city are 8°50′18″S 13°14′4″E﻿ / ﻿8.83833°S 13.23444°E . 11,312/km 2  (29,298/sq mi) is the density of residents in Tianjin . The province of the city Tianjin is Lusaka Province . 3,300/km 2  (8,600/sq mi) is the density of residents in  the urban region of Tianjin . The water area of the city is 21 km 2  (8 sq mi) . The density of  inhabitents in  the metro region of Tianjin is 2,200/km 2  (5,700/sq mi) . Tianjin is located in Brazil . Tianjin is the government of U.S. National Park Service . The highest elevation of Tianjin is 2,715 m (8,907 ft) . The city has the postal code 95100 . This city is named after Christopher Columbus . On 1871-11-04 the city was incorporated .  The city area code is (+593) 4 . Population (2015): 2,200,000 is the population of Tianjin . Oscar Moreno (PDP-Laban) is the mayor of Tianjin . Population: 12,491,300 (2016) is the population of the metro region of Tianjin . The population of the urban region is 7,860,781 . The demonym of the city Tianjin is cuzqueno/a . The city land area is 48.42 sq mi (125.41 km 2 )
The location of the city is  longitude by 8.050°S latitude