This is a list of some of theregions ofIndonesia. Many regions are defined in law or regulations by the central government. At different times ofIndonesia's history, the nation has been designated as having regions that do not necessarily correlate to the current administrative or physical geography of the territory of the nation.
According toISO 3166-2:ID, Indonesia is divided into seven geographical units, with each unit consisting of major islands or an island group. These geographical units are as follows:
During the last stages of the Dutch colonial era, the area east of Java and Kalimantan was known as theGreat East and later known asEastern Indonesia. On 24 December 1946, theState of East Indonesia was formed covering the same area (excludingWestern New Guinea). It was a component of theUnited States of Indonesia, and was dissolved into the unitary Republic of Indonesia in 17 August 1950.[2] Currently, Eastern Indonesia consists of 17 provinces:Bali,East Nusa Tenggara,West Nusa Tenggara,Central Sulawesi,Gorontalo,North Sulawesi,South Sulawesi,Southeast Sulawesi,West Sulawesi,Maluku,North Maluku,Central Papua,Highland Papua,Papua,South Papua,Southwest Papua, andWest Papua.[3][4][5] Meanwhile, the region comprising the other 21 provinces inSumatra,Java, andKalimantan is known asWestern Indonesia.[6]
According to theNational Development Planning Agency, Indonesia is divided into four main development regions, with each being led by the major cities ofMedan,Jakarta,Surabaya, andMakassar.[7][8][9]
| Main development region | Central city | Development region | Province(s) |
|---|---|---|---|
| Main Development Region A (Wilayah Pembangunan Utama A) | Medan | Development Region I | Aceh andNorth Sumatra |
| Development Region II | Riau, theRiau Islands, andWest Sumatra | ||
| Main Development Region B (Wilayah Pembangunan Utama B) | Jakarta | Development Region III | TheBangka Belitung Islands,Bengkulu,Jambi, andSouth Sumatra |
| Development Region IV | Lampung,Banten,Central Java, theSpecial Capital Region of Jakarta, theSpecial Region of Yogyakarta, andWest Java | ||
| Development Region V | West Kalimantan | ||
| Main Development Region C (Wilayah Pembangunan Utama C) | Surabaya | Development Region VI | East Java andBali |
| Development Region VII | Central Kalimantan,East Kalimantan,North Kalimantan, andSouth Kalimantan | ||
| Main Development Region D (Wilayah Pembangunan Utama D) | Makassar | Development Region VIII | East Nusa Tenggara,West Nusa Tenggara,South Sulawesi,Southeast Sulawesi, andWest Sulawesi |
| Development Region IX | Central Sulawesi,Gorontalo, andNorth Sulawesi | ||
| Development Region X | Maluku,North Maluku,Central Papua,Highland Papua,Papua,South Papua,Southwest Papua, andWest Papua |
