The city province is Guayas . The area of the metro region is Area: 5,925 km2 (2,288 sq mi) . The lowest elevation of Surabaya City is 0 ft . The postal code of the city is 21500 . Area: 2,787 km2 (1,076 sq mi) is the area of the urban region of Surabaya City2,947,722 is the population of the urban region of Surabaya City . The density of  inhabitents in  the urban region of Surabaya City is 2,305/km 2  (5,970/sq mi) . Surabaya City is at an elevation of 455 m . The city is Area: 350.5 km2 (135.3 sq mi) in areaThe population of Surabaya City is Population (2016) : 1,200,337 .  The city area code is 026 . The land area of the city is 16.0 sq mi (41.4 km 2 ) . Surabaya City is named for Christopher Columbus . Surabaya City is located in Chile . The Surabaya City city highest elevation is 14,110 ft (4,300 m) . The city was incorporated in 1871 (Huntington) . The density of  inhabitents in Surabaya City is 4,097/km 2  (10,610/sq mi) . The mayor of Surabaya City is Hou You-yi (KMT) . The density of  residents in  the metro region of Surabaya City is 1,352.5/km 2  (3,527/sq mi) . The coordinates of the city are 39°08′N 117°11′E﻿ / ﻿39.133°N 117.183°E . The demonym of the city Surabaya City is Saigonese
Surabaya City is below the equator