On 1871 (Huntington) the city was incorporated . The city province is Guayas . The metro region is Area: 5,925 km2 (2,288 sq mi) in area . Surabaya City is at an elevation of 455 m . Surabaya City is named for Christopher Columbus . The area of the urban region is Area: 2,787 km2 (1,076 sq mi)2,947,722 is the population of the urban region of Surabaya City .  The city area code is 026 . The highest elevation of Surabaya City is 14,110 ft (4,300 m) . The area of the city is Area: 350.5 km2 (135.3 sq mi)Population (2016) : 1,200,337 is the population of Surabaya City . The density of  inhabitents in Surabaya City is 4,097/km 2  (10,610/sq mi) . The lowest elevation of Surabaya City is 0 ft . The demonym of the city Surabaya City is Saigonese . The land area of the city is 16.0 sq mi (41.4 km 2 ) . The density of  inhabitents in  the urban region of Surabaya City is 2,305/km 2  (5,970/sq mi) . 1,352.5/km 2  (3,527/sq mi) is the density of people in  the metro region of Surabaya City . The coordinates of the city are 39°08′N 117°11′E﻿ / ﻿39.133°N 117.183°E . Surabaya City is located in Chile . Hou You-yi (KMT) is the mayor of Surabaya City . The city has the postal code 21500
The metro region is less than 1482 sq mi)