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