Surabaya metropolitan area

Surabaya metropolitan area
Gerbangkertosusila
Other transcription(s)
  Javaneseꦒꦼꦂꦧꦁ​ꦏꦼꦂꦠꦱꦸꦱꦶꦭ
Gerbangkertasusila
From top, left to right: Downtown Surabaya, aerial view of Gresik Regency, Mojokerto at night, Suramadu Bridge that connects Surabaya and Bangkalan Regency, Brahu Temple Trowulan in Mojokerto Regency, Gelora Delta Stadium in Sidoarjo Regency, a mangrove tree in Lamongan Regency and ISS view of Greater Surabaya during nighttime.
Country Indonesia
Province East Java
Core citySurabaya
Satellite cityMojokerto
RegenciesGresik Regency
Bangkalan Regency
Mojokerto Regency
Sidoarjo Regency
Lamongan Regency
Area
  Metro
6,310.06 km2 (2,436.33 sq mi)
Population
 (mid 2023 estimate)
  Urban
6,251,766
  Metro
9,958,656
  Metro density1,600/km2 (4,100/sq mi)
GDP Megacity
  GDPIDR 2,037,094 trillion (2023)
  NominalUS$ 133.647 billion (2023)
  PPPUS$ 428.025 billion (2023)
Time zoneUTC+7 (Indonesia Western Time)
Postcodes
6xxxx
Area codes(62)31, (62)321, (62)322
Vehicle signL, S, W
GDP metro2023
 - TotalRp 1,541.080 trillion
US$ 101.105 billion
US$ 323.805 billion (PPP)
 - Per capitaRp 130.624 million
US$ 8,570
US$ 27,446 (PPP)
Highest elevation 3,339 m/10,955 ft (Arjuno-Welirang, in Mojokerto Regency)

The Surabaya metropolitan area or Greater Surabaya, known locally as Gerbangkertosusila (Javanese: ꦒꦼꦂꦧꦁ​ꦏꦼꦂꦠꦱꦸꦱꦶꦭ, romanized: Gěrbangkěrtåsusila, from Gresik-Bangkalan-Mojokerto-Surabaya-Sidoarjo-Lamongan), is a metropolitan area in East Java, Indonesia. It is the country's second-largest metropolitan area, after the Jakarta metropolitan area. Gerbangkertosusila had also been used in presidential decree to refer to larger region which include Jombang, Bojonegoro, and Tuban.