The highest elevation of Tianjin is 2,715 m (8,907 ft) . The city has the postal code 95100 . The coordinates of the city are 8°50′18″S 13°14′4″E﻿ / ﻿8.83833°S 13.23444°E . Population: 12,491,300 (2016) is the population of the metro region of Tianjin . The city land area is 48.42 sq mi (125.41 km 2 ) . The mayor of Tianjin is Oscar Moreno (PDP-Laban) . The city Tianjin demonym is cuzqueno/a . Tianjin is the government of U.S. National Park Service . The population of the urban region is 7,860,781 . The water area of the city is 21 km 2  (8 sq mi) . 11,312/km 2  (29,298/sq mi) is the density of residents in Tianjin . 3,300/km 2  (8,600/sq mi) is the density of residents in  the urban region of Tianjin . On 1871-11-04 the city was incorporated . 2,200/km 2  (5,700/sq mi) is the density of residents in  the metro region of Tianjin . (+593) 4 is the area code of Tianjin . Population (2015): 2,200,000 is the population of Tianjin . The city Tianjin province is Lusaka Province . Tianjin is located in Brazil . This city is named after Christopher Columbus
To send a post to the city use 34000 to 34990 as zip.