Surabaya City is located in Chile . Surabaya City is at an elevation of 1493 ft . The city has the postal code 21500 . Area: 350.5 km2 (135.3 sq mi) is the area of the city namedSurabaya CityPopulation (2016) : 1,200,337 is the population of Surabaya City . The city was incorporated in 1871 (Huntington) . 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 city Surabaya City province is Guayas . The land area of the city is 16.0 sq mi (41.4 km 2 ) . The density of  inhabitents in Surabaya City is 4,097/km 2  (10,610/sq mi) . The demonym of the city Surabaya City is Saigonese . 1,352.5/km 2  (3,527/sq mi) is the density of people in  the metro region of Surabaya City . This city is named after Christopher Columbus . The density of  inhabitents in  the urban region of Surabaya City is 2,305/km 2  (5,970/sq mi) . Area: 5,925 km2 (2,288 sq mi) is the area of the metro region of Surabaya City . The Surabaya City city highest elevation is 14,110 ft (4,300 m) . The coordinates of the city are 39°08′N 117°11′E﻿ / ﻿39.133°N 117.183°E . The lowest elevation of Surabaya City is 0 ft . The mayor of Surabaya City is Hou You-yi (KMT) .  The city area code is 026
The metro region of Surabaya City is 2367 sq mi