Regions of Indonesia
This is a list of some of the regions of Indonesia. Many regions are defined in law or regulations by the central government. At different times of Indonesia'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.
Geographical units

According to ISO 3166-2:ID, Indonesia is divided into 7 geographical units, with each unit consisting of major islands or an island group. These geographical units are as follows:
Code | Geographical unit | Provinces |
---|---|---|
ID-SM |
Sumatra | Aceh, the Bangka Belitung Islands, Bengkulu, Jambi, Lampung, North Sumatra, Riau, the Riau Islands, South Sumatra, and West Sumatra |
ID-JW |
Java | Banten, Central Java, East Java, the Special Capital Region of Jakarta, the Special Region of Yogyakarta, and West Java |
ID-KA |
Kalimantan | Central Kalimantan, East Kalimantan, North Kalimantan, South Kalimantan, and West Kalimantan |
ID-NU |
Lesser Sunda Islands | Bali, East Nusa Tenggara, and West Nusa Tenggara |
ID-SL |
Sulawesi | Central Sulawesi, Gorontalo, North Sulawesi, Southeast Sulawesi, South Sulawesi, and West Sulawesi |
ID-ML |
Maluku Islands | Maluku and North Maluku |
ID-PP |
Western New Guinea | Papua and West Papua |
Western and Eastern Indonesia
During the last stages of the Dutch colonial era, the area east of Java and Kalimantan was known as the Great East and later known as Eastern Indonesia. On 24 December 1946, the State of East Indonesia was formed covering the same area (excluding Western New Guinea). It was a component of the United States of Indonesia, and was dissolved into the unitary Republic of Indonesia in August 1950.[1] Currently, Eastern Indonesia consists of 13 provinces: Bali, West Nusa Tenggara, East Nusa Tenggara, North Sulawesi, Gorontalo, Central Sulawesi, West Sulawesi, South Sulawesi, Southeast Sulawesi, Maluku, North Maluku, Papua, and West Papua.[2][3][4] Meanwhile, the rest of provinces in Sumatra, Java, and Kalimantan are known as the Western Indonesia.[5]
Development regions
According to the National Development Planning Agency, Indonesia is divided into 4 main development regions, with each being led by the major cities of Medan, Jakarta, Surabaya, and Makassar.[6][7][8]

Main development region | Central city | Development regions | Provinces |
---|---|---|---|
Main Development Region A (Wilayah Pembangunan Utama A) |
Medan | Development Region I | Aceh, North Sumatra |
Development Region II | West Sumatra, Riau, Riau Islands | ||
Main Development Region B (Wilayah Pembangunan Utama B) |
Jakarta | Development Region III | Jambi, South Sumatra, Bengkulu, Bangka Belitung Islands |
Development Region IV | Lampung, Banten, Special Capital Region of Jakarta, West Java, Central Java, Special Region of Yogyakarta | ||
Development Region V | West Kalimantan | ||
Main Development Region C (Wilayah Pembangunan Utama C) |
Surabaya | Development Region VI | East Java, Bali |
Development Region VII | Central Kalimantan, North Kalimantan, East Kalimantan, South Kalimantan | ||
Main Development Region D (Wilayah Pembangunan Utama D) |
Makassar | Development Region VIII | West Nusa Tenggara, East Nusa Tenggara, West Sulawesi, South Sulawesi, Southeast Sulawesi |
Development Region IX | Central Sulawesi, Gorontalo, North Sulawesi | ||
Development Region X | Maluku, North Maluku, Papua, West Papua |
Notes
- Ricklefs 2008, pp. 362, 374.
- Media, Kompas Cyber (6 March 2012). "13 Provinsi di Indonesia Timur Gelar Konsultasi Regional - Kompas.com".
- Agency, ANTARA News. "BI Catat Bali Raih Inflasi Terendah KTI - ANTARA News Bali".
- "Bawaslu Siap Kelola Keuangan Pilkada 2018 Secara Akuntabel - Badan Pengawas Pemilihan Umum Republik Indonesia". bawaslu.go.id.
- Badan Riset dan Inovasi Nasional Republik Indonesia (2021-03-19). "Sosialisasi dan Bimtek Indeks Daya Saing Daerah untuk Kawasan Barat Indonesia (Sumatera, Jawa dan Kalimantan) | Berita - Index Daya Saing Daerah (IDSD)". Indeks-inovasi.brin.go.id. Retrieved 2022-04-23.
- "26. Z. Irian Jaya". bappenas.go.id (Word DOC) (in Indonesian).
- Geografi. ISBN 9789797596194.
- Geografi: Jelajah Bumi dan Alam Semesta. ISBN 9789799281623.
References
- Ricklefs, M.C. (2008) [1981]. A History of Modern Indonesia Since c.1300 (4th ed.). London: MacMillan. ISBN 978-0-230-54685-1.