East Kalimantan
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East Kalimantan (
Indonesian Indonesian is anything of, from, or related to Indonesia, an archipelagic country in Southeast Asia. It may refer to: * Indonesians, citizens of Indonesia ** Native Indonesians, diverse groups of local inhabitants of the archipelago ** Indonesian ...
: ) is a
province A province is almost always an administrative division within a country or sovereign state, state. The term derives from the ancient Roman ''Roman province, provincia'', which was the major territorial and administrative unit of the Roman Empire ...
of
Indonesia Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania between the Indian and Pacific oceans. It consists of over 17,000 islands, including Sumatra, Java, Sulawesi, and parts of Borneo and New Guine ...
. Its territory comprises the eastern portion of
Borneo Borneo (; id, Kalimantan) is the third-largest island in the world and the largest in Asia. At the geographic centre of Maritime Southeast Asia, in relation to major Indonesian islands, it is located north of Java, west of Sulawesi, and eas ...
. It had a population of about 3.03 million at the 2010 census (within the current boundary),Biro Pusat Statistik, Jakarta, 2011. 3.42 million at the 2015 census, and 3.766 million at the 2020 census;Badan Pusat Statistik, Jakarta, 2021. the official estimate as at mid 2023 was 4,030,488.Badan Pusat Statistik, Jakarta, 28 February 2024, ''Provinsi Kalimantan Timur Dalam Angka 2024'' (Katalog-BPS 1102001.64) Its capital is the city of
Samarinda Samarinda is the capital city of the Provinces of Indonesia, Indonesian province of East Kalimantan on the island of Borneo. The city lies on the banks of the Mahakam River with a land area of . Samarinda ranks first on East Kalimantan Human dev ...
. East Kalimantan has a total area of and is the second least densely populated province in
Kalimantan Kalimantan () is the Indonesian portion of the island of Borneo. It constitutes 73% of the island's area. The non-Indonesian parts of Borneo are Brunei and East Malaysia. In Indonesia, "Kalimantan" refers to the whole island of Borneo. In 2019, ...
. The majority of the region shares a maritime border to the east with
West Sulawesi West Sulawesi ( id, Sulawesi Barat) is a province of Indonesia. It is located on the western side of Sulawesi island. It covers an area of 16,787.18 km2, and its capital is Mamuju. The 2010 Census recorded a population of 1,158,651, while t ...
and
Central Sulawesi Central Sulawesi (Indonesian: ''Sulawesi Tengah'') is a province of Indonesia located at the centre of the island of Sulawesi. The administrative capital and largest city is located in Palu. The 2010 census recorded a population of 2,635,009 for ...
; its
Cape Mangkalihat Cape Mangkalihat, also known as Cape Sangkulirang, is a cape in eastern Borneo. It is located in the Indonesian province of East Kalimantan, in the regencies of Berau and East Kutai. The cape, as part of the Sangkulirang-Mangkalihat Karst, is ...
separates the
Makassar Strait Makassar Strait is a strait between the islands of Borneo and Sulawesi in Indonesia. To the north it joins the Celebes Sea, while to the south it meets the Java Sea. To the northeast, it forms the Sangkulirang Bay south of the Mangkalihat Pe ...
from the
Celebes Sea The Celebes Sea, (; ms, Laut Sulawesi, id, Laut Sulawesi, fil, Dagat Selebes) or Sulawesi Sea, of the western Pacific Ocean is bordered on the north by the Sulu Archipelago and Sulu Sea and Mindanao Island of the Philippines, on the east by ...
. Its former northernmost region was split off on 25 October 2012 and is now
North Kalimantan North Kalimantan ( id, Kalimantan Utara) is a province of Indonesia. It is located on the northernmost of Kalimantan, the Indonesian part of the island of Borneo. North Kalimantan borders the Malaysian states of Sabah to the north and Sarawak t ...
; meanwhile it still shares land border to the west with
West Kalimantan West Kalimantan ( id, Kalimantan Barat) is a province of Indonesia. It is one of five Indonesian provinces comprising Kalimantan, the Indonesian part of the island of Borneo. Its capital city is Pontianak, Indonesia, Pontianak. The province has ...
and
Central Kalimantan Central Kalimantan ( id, Kalimantan Tengah) is a province of Indonesia. It is one of five provinces in Kalimantan, the Indonesian part of Borneo. Its provincial capital is Palangka Raya and in 2010 its population was over 2.2 million, while the 2 ...
; to its south, East Kalimantan borders
South Kalimantan South Kalimantan ( id, Kalimantan Selatan) is a Provinces of Indonesia, province of Indonesia. It is the smallest province in Kalimantan, the Indonesian territory of Borneo. The provincial capital was Banjarmasin until 15 February 2022 when it wa ...
. The province bordered
Sabah Sabah () is a States and federal territories of Malaysia, state of Malaysia located in northern Borneo, in the region of East Malaysia. Sabah borders the Malaysian state of Sarawak to the southwest and the North Kalimantan province of Indone ...
before the split, but still borders
Sarawak Sarawak (; ) is a States and federal territories of Malaysia, state of Malaysia. The largest among the 13 states, with an area almost equal to that of Peninsular Malaysia, Sarawak is located in northwest Borneo Island, and is bordered by the M ...
. On 11 January 2013, the existing West Kutai Regency was split in two, with the northwesternmost five districts forming a new
Mahakam Ulu Regency Mahakam Ulu Regency is a regency (''kabupaten'') in the province of East Kalimantan, Indonesia. It covers an area of 15,315 km2. The regency was established on 14 December 2012, partitioned from West Kutai Regency. The districts now forming the reg ...
. East Kalimantan is now divided into seven
regencies A regent (from Latin : ruling, governing) is a person appointed to govern a state ''pro tempore'' (Latin: 'for the time being') because the monarch is a minor, absent, incapacitated or unable to discharge the powers and duties of the monarchy, ...
and three cities. Akmal Malik is the current acting
governor of East Kalimantan The Governor of East Kalimantan is the executive head of the Indonesian province of East Kalimantan. The office was created in 1956, shortly before the formation of East Kalimantan as a new province on January 1, 1957. List of governors This is a ...
. It borders
Malaysia Malaysia ( ; ) is a country in Southeast Asia. The federation, federal constitutional monarchy consists of States and federal territories of Malaysia, thirteen states and three federal territories, separated by the South China Sea into two r ...
.


New national capital

The province will host the future
capital city A capital city or capital is the municipality holding primary status in a country, state, province, Department (country subdivision), department, or other subnational entity, usually as its seat of the government. A capital is typically a city ...
of Indonesia that will be built on the borders of
Kutai Kartanegara Kutai Kartanegara Regency (abbreviated as ''Kukar'') is a regency of East Kalimantan province, Indonesia. It has a land area of 27,263.10 km2 and a water area of 4,097 km2, geographically located between 1°18′40″S and 116°31′36 ...
and Penajam North Paser Regencies. The
future capital Future Group is an Indian conglomerate, founded by Kishore Biyani and based in Mumbai. The company is known in Indian retail and fashion sectors, operating supermarket chains Big Bazaar and Food Bazaar, lifestyle stores Brand Factory and Centra ...
is to be named Nusantara, with construction originally projected to start in 2020, and intended to conclude in 2024. However, at a hearing before Committee V of Indonesia's House of Representatives on 9 June 2020, a government representative asserted that the government had not allocated the 2022 budget for the project (for 2022, the ministry proposed a budget worth over 100.46 trillion rupiah - over 7 billion US$ - a steep reduction from the figure of 149.81 trillion rupiah in 2021). Earlier, the National Planning Development Authority had said that the total sum needed to move the capital from its current location in Jakarta to East Kalimantan province amounted to 486 trillion rupiah, of which 265.2 trillion will be mobilised through the public-private partnership (PPP), 127.3 trillion from private special funds, and 93.5 trillion from the state budget. But the Ministry of Finance said that the government switched its priorities to mitigating the effect of the
COVID-19 pandemic The COVID-19 pandemic, also known as the coronavirus pandemic, is an ongoing global pandemic of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The novel virus was first identif ...
. The ministry announced that it had not allocated budget for the new capital project. Nevertheless, the new national capital is scheduled to be formally inaugurated in August 2024.


History


Prehistory

East Kalimantan was once mostly covered by tropical rainforest. In prehistoric times, there was limestone cave called ''
Lubang Jeriji Saléh Lubang Jeriji Saleh is a limestone cave complex in Indonesia in the Sangkulirang-Mangkalihat Karst located in the remote jungle of Bengalon district in East Kutai, East Kalimantan province on Borneo island. In a 2018 publication a team of resear ...
'' located in the
Sangkulirang-Mangkalihat Karst The Sangkulirang-Mangkalihat Karst is a karstique area in Sub Kelay, Biatan, Talisayan, Batu Putih, and Biduk-biduk Berau districts of East Kalimantan province on the island of Borneo in Indonesia. It covers an area of 105,000 hectares, includin ...
in the district of
Bengalon Bengalon is a town in the East Kalimantan province of Indonesia Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania between the Indian and Pacific oceans. It consists of over 17,000 islands, includin ...
, East Kutai, believed to contain one of the oldest
figurative art Figurative art, sometimes written as figurativism, describes artwork (particularly paintings and sculptures) that is clearly derived from real object sources and so is, by definition, representational. The term is often in contrast to abstract a ...
in the world. The cave paintings were first spotted in 1994 by the French explorer Luc-Henri Fage and the French archaeologist Jean-Michel Chazine, from Kalimanthrope. In 2018, a team of scientists investigating the cave, led by Maxime Aubert from
Griffith University Griffith University is a public research university in South East Queensland on the east coast of Australia. Formally founded in 1971, Griffith opened its doors in 1975, introducing Australia's first degrees in environmental science and Asian s ...
and Pindi Setiawan from the
Bandung Institute of Technology The Bandung Institute of Technology ( id, Institut Teknologi Bandung, abbreviated as ITB) is a national research university located in Bandung, Indonesia. Since its establishment in 1920, ITB has been consistently recognized as Indonesia's premie ...
, published a report in the journal ''
Nature Nature, in the broadest sense, is the physics, physical world or universe. "Nature" can refer to the phenomenon, phenomena of the physical world, and also to life in general. The study of nature is a large, if not the only, part of science. ...
'' identifying the paintings as the world's oldest known figurative art. The team had previously investigated cave paintings in the neighbouring island of
Sulawesi Sulawesi (), also known as Celebes (), is an island in Indonesia. One of the four Greater Sunda Islands, and the world's eleventh-largest island, it is situated east of Borneo, west of the Maluku Islands, and south of Mindanao and the Sulu Ar ...
. In order to date the paintings, the team used dating techniques on the calcium carbonate (limestone) deposits close to them.


4th century to 17th century

East Kalimantan is home to several kingdoms, such as the first and oldest Hindu kingdom of Indonesia, the Kingdom of Kutai Martadipura founded in the 4th century CE, it was then succeeded by the Sultanate of Kutai ing Martadipura in the 14th century CE. Other kingdoms are also located in East Kalimantan such as the Sultanate of Pasir. East Kalimantan region include Pasir, Kutai, Berau and also Karasikan (Buranun / pre-Sultanate of Sulu) claimed as conquered territory Suryanata Maharaja, the governor of Majapahit in the State Dipa (which is located in the Great Temple in Amuntai) until 1620 in the Sultanate of Banjar. However, in the Chinese History Annals, Ming shi 明史, at 1417, some parts of the eastern Kalimantan was recorded as a kingdom under the rule of the Philippine kingdom of then Hindu
Sulu Sulu (), officially the Province of Sulu (Tausug language, Tausūg: ''Wilāya sin Lupa' Sūg''; tl, Lalawigan ng Sulu), is a Provinces of the Philippines, province of the Philippines in the Sulu Archipelago and part of the Bangsamoro, Bangsamor ...
as Kalimantan was ruled by a Sulu monarch named Mahalatu Gelamading (Maharaja Klainbantangan) where his title, Klainbantangan, in Chinese rendering, was named after his territory
Kalimantan Kalimantan () is the Indonesian portion of the island of Borneo. It constitutes 73% of the island's area. The non-Indonesian parts of Borneo are Brunei and East Malaysia. In Indonesia, "Kalimantan" refers to the whole island of Borneo. In 2019, ...
. At this point in time, Sulu had rebelled against Majapahit rule and had invaded Northeast and East Borneo until the very territory of Kalimantan. Between the years 1620–1624, kingdoms in East Kalimantan turned into an area influence of the Sultanate of Sultan Alauddin Makassar, before the Bungaya agreement. According to the Hikayat Banjar, the Sultan of Makassar never borrowed land for trade covers an area east and southeast of Borneo to the Sultan Mustain Billah of Banjar when Kiai Martasura sent to Makassar and entered into an agreement with the Sultan Tallo I Mangngadaccinna Daeng I Ba'le 'Sultan Mahmud Karaeng Pattingalloang, which became Mangkubumi and principal advisor to the Sultan Muhammad Said, king of Gowa in 1638–1654 and also in-law of Sultan Hasanuddin, which will make the East Kalimantan region as a place to trade for the Sultanate of Makassar (Gowa-Tallo), since that began to arrive people from South Sulawesi. However, based on the agreement between the Sultanate of Banjar and the Dutch East India Company (VOC) in 1635, VOC help Banjar restore lands in East Kalimantan into spheres of influence of the Sultanate of Banjar. It is embodied in the Bungaya agreement, that the Sultanate of Makassar are not allowed to trade up to the east and the north Borneo.


18th century to 20th century

In accordance with treaties, on January 1, 1817, Sultan Sulaiman of Banjar handed East Kalimantan, Central Kalimantan, part of West and South Kalimantan (including Banjarmasin) over to the Dutch East Indies. On May 4, 1826, Sultan Adam al-wathiq Billah of Banjar reaffirmed the handover of these territories to the Dutch East Indies colonial administration. In 1846, the Dutch began to put a Resident Assistant in East Borneo at Samarinda (now the province of East Kalimantan and the eastern part of South Kalimantan) named H. Von Dewall. East Kalimantan was then part of the
Dutch East Indies The Dutch East Indies, also known as the Netherlands East Indies ( nl, Nederlands(ch)-Indië; ), was a Dutch colony consisting of what is now Indonesia. It was formed from the nationalised trading posts of the Dutch East India Company, which ...
. East Kalimantan with its then administrative area was established based on the Law No. 25 of 1956 with the first governor being APT Pranoto.


Split of North Kalimantan province

North Kalimantan North Kalimantan ( id, Kalimantan Utara) is a province of Indonesia. It is located on the northernmost of Kalimantan, the Indonesian part of the island of Borneo. North Kalimantan borders the Malaysian states of Sabah to the north and Sarawak t ...
was formally inaugurated as the 34th province of Indonesia on April 15, 2013. The new province was previously part of East Kalimantan Province.


Geography

East Kalimantan Province comprises a land area of 125,336.81 square kilometers and a comprehensive ocean management area of 25,656 km2, located between 113°44'E and 119°00'E, and between 2°33'N and 2°25'S. The province is divided into seven regencies (''kabupaten'') and three cities (''kota''), together subdivided into 103 districts (''kecamatan'') and then into 1,026 villages (rural ''desa'' and urban ''kelurahan''). The regencies (with their administrative capitals) and cities are enumerated below. East Kalimantan is one of the main gates to the eastern part of Indonesia. The area is also known as a storehouse of timber and mining, has hundreds of rivers (scattered across almost all regencies and cities) which area the main means of transportation in addition to land transport, with the longest river being the
Mahakam The Mahakam River ( Indonesian: ''Sungai Mahakam'') is third longest and volume discharge river in Borneo after Kapuas River and Barito River, it is located in Kalimantan, Indonesia. It flows from the district of Long Apari in the highlands ...
. East Kalimantan borders
North Kalimantan North Kalimantan ( id, Kalimantan Utara) is a province of Indonesia. It is located on the northernmost of Kalimantan, the Indonesian part of the island of Borneo. North Kalimantan borders the Malaysian states of Sabah to the north and Sarawak t ...
in the north,
South Kalimantan South Kalimantan ( id, Kalimantan Selatan) is a Provinces of Indonesia, province of Indonesia. It is the smallest province in Kalimantan, the Indonesian territory of Borneo. The provincial capital was Banjarmasin until 15 February 2022 when it wa ...
in the south,
Central Kalimantan Central Kalimantan ( id, Kalimantan Tengah) is a province of Indonesia. It is one of five provinces in Kalimantan, the Indonesian part of Borneo. Its provincial capital is Palangka Raya and in 2010 its population was over 2.2 million, while the 2 ...
in the southwest, and
West Kalimantan West Kalimantan ( id, Kalimantan Barat) is a province of Indonesia. It is one of five Indonesian provinces comprising Kalimantan, the Indonesian part of the island of Borneo. Its capital city is Pontianak, Indonesia, Pontianak. The province has ...
and
Sarawak Sarawak (; ) is a States and federal territories of Malaysia, state of Malaysia. The largest among the 13 states, with an area almost equal to that of Peninsular Malaysia, Sarawak is located in northwest Borneo Island, and is bordered by the M ...
in the east. It touches the
Celebes Sea The Celebes Sea, (; ms, Laut Sulawesi, id, Laut Sulawesi, fil, Dagat Selebes) or Sulawesi Sea, of the western Pacific Ocean is bordered on the north by the Sulu Archipelago and Sulu Sea and Mindanao Island of the Philippines, on the east by ...
and the
Makassar Strait Makassar Strait is a strait between the islands of Borneo and Sulawesi in Indonesia. To the north it joins the Celebes Sea, while to the south it meets the Java Sea. To the northeast, it forms the Sangkulirang Bay south of the Mangkalihat Pe ...
in the east, with its large
Mangkalihat Peninsula Cape Mangkalihat, also known as Cape Sangkulirang, is a cape in eastern Borneo. It is located in the Indonesian province of East Kalimantan, in the regencies of Berau and East Kutai. The cape, as part of the Sangkulirang-Mangkalihat Karst, is n ...
separating the two. There are hills in almost all districts, and there are numerous lakes. Most lakes are located in the Kutai Regency, with the most extensive lakes, Semayang and Melintang, having an area of 13,000 ha and 11,000 ha respectively.


Climate

Such as the climate of Indonesia in general, East Kalimantan tropical climate and has two seasons, dry and rainy seasons. The dry season usually occurs in May to October, while the rainy season in November to April. This situation continued every year interspersed with transitional season in certain months. Moreover, because of its location on the equator, the climate in East Kalimantan are also affected by wind monsoon, monsoon wind is November–April west and east monsoon winds from May to October. In recent years, the situation in East Kalimantan season is sometimes erratic. In the months that it is supposed to rain, there is no rain at all, or vice versa in the months that should be dry it rains for a much longer time.


Temperature and humidity

Temperatures somewhere high and low are determined by the area of the ocean surface and the distance from the beach. In general, East Kalimantan hot climates with temperatures in 2013 ranged from 21.6 °C in Berau October to 35.6 °C in Berau in September. Aside from being a tropical area with extensive forests, in 2013 the average humidity between 83 and 87 percent of East Kalimantan. The lowest air humidity observed by the meteorological station Samarinda happens in a few months with 82 percent humidity. While the highest occurred in Berau in February with 91 percent humidity.


Rainfall and wind conditions

Rainfall in East Kalimantan region varies by month and location of monitoring stations. Average highest rainfall recorded at the Meteorological Station Berau amounted to 245.1 mm and the lowest for the year 2013 was recorded at the Meteorological Station Samarinda is 237.8 mm. At some monitoring stations monitor wind conditions in East Kalimantan in 2013. Observations show that wind speeds between 3 and 4 knots. The highest wind speed was 4 knots in Balikpapan and Berau, while the lowest was 3 knots in Samarinda.


Administrative divisions

When it was first created, East Kalimantan province was composed of four
regencies A regent (from Latin : ruling, governing) is a person appointed to govern a state ''pro tempore'' (Latin: 'for the time being') because the monarch is a minor, absent, incapacitated or unable to discharge the powers and duties of the monarchy, ...
(''kabupaten'') - Paser (spelt ''Pasir'' until 2007), Kutai (renamed as Kutai Kartanegara in 2002), Berau and Bulungan - and two cities (''kota'') - Balikpapan and Samarinda. On 8 October 1997, a third city - Tarakan - was created from part of Bulungan Regency. On 4 October 1999 a fourth city - Bontang - was created from part of Kutai Regency, while four new regencies were created - Malinau and Nunukan from parts of Bulungan Regency, and East Kutai and West Kutai from the remaining parts of Kutai Regency (which ceased to exist). Two further regencies were set up - Penajam North Paser from part of Pasir Regency on 10 April 2002, and Tana Tidung from part of Bulungan Regency on 17 July 2007. By early 2012 therefore, East Kalimantan was divided into ten
regencies A regent (from Latin : ruling, governing) is a person appointed to govern a state ''pro tempore'' (Latin: 'for the time being') because the monarch is a minor, absent, incapacitated or unable to discharge the powers and duties of the monarchy, ...
and four cities. On 22 October 2012, the Indonesian House of Representatives agreed to the creation of a new province out of the four most northerly of the Regencies in East Kalimantan, namely
Bulungan Bulungan Regency is a Regencies of Indonesia, regency of North Kalimantan Province in Indonesia. It covers an area of 13,181.92 km2 and had a population of 112,663 at the 2010 Census and 151,844 at the 2020 Census. The administrative centre is ...
,
Malinau The town of Malinau is one of the districts of Malinau Regency in North Kalimantan Province of Indonesia and is also the administrative capital of the Regency. The latest official estimate of population (as at mid 2021) was 27,140.Badan Pusat Sta ...
,
Nunukan Nunukan Regency is a regency of North Kalimantan Province in Indonesia. Nunukan Regency shares international borders with the Malaysian states of Sabah to the north and Sarawak to the west, and inter-regency borders with Tana Tidung Regency and Mal ...
and Tana Tidung, together with one city,
Tarakan Tarakan is an island and the largest city of the Indonesian province of North Kalimantan. The island city is located in northern Borneo, midway along the coast of the province. The city boundaries are co-extensive with the island (including a co ...
. Accordingly, these were split off to form the new province of
North Kalimantan North Kalimantan ( id, Kalimantan Utara) is a province of Indonesia. It is located on the northernmost of Kalimantan, the Indonesian part of the island of Borneo. North Kalimantan borders the Malaysian states of Sabah to the north and Sarawak t ...
on 25 October 2012. The totals below have been adjusted to take account of the removal of Tarakan City and four regencies. The existing West Kutai Regency was then split into two on 14 December 2012, with the northern districts split off to form the new Mahakam Ulu Regency, thus leaving the following seven regencies and three cities to comprise the reduced East Kalimantan. These are listed below with their areas and their populations at the 2010 CensusBiro Pusat Statistik, Jakarta, 2011. and 2020 Census,Badan Pusat Statistik, Jakarta, 2021. together with the official estimates as at mid 2022.Badan Pusat Statistik, Jakarta, 2023, ''Provinsi Kalimantan Timur Dalam Angka 2023'' (Katalog-BPS 1102001.64) As of July 2023, the new capital of Nusantara (tentatively designated ''IKN Nusantara'') has not officially gazetted separate as a jurisdiction per Interior Ministry in practice, but is reported to cover 2,561 km2. including 682 km2 of ocean; it includes a central likely government heavy area named KIPP with IKN, would occupy 66.7 km2 and 200,000 strong ''staffers and families'' from Jakarta
liputan
reports. The province now forms one of Indonesia's 84 national electoral districts to elect members to the
People's Representative Council The People's Representative Council of the Republic of Indonesia ( id, Dewan Perwakilan Rakyat Republik Indonesia, DPR-RI), also known as the House of Representatives, is one of two elected chambers of the People's Consultative Assembly (MPR), ...
. The East Kalimantan Electoral District consists of all of the 7 regencies and 3 cities in the province, and elects 8 members to the People's Representative Council. For the present Parliament, this includes the area and population of the newly-designated national capital of Nusantara.


Education


Schools

* SMPN 3 Balikpapan


Ecology

Illegal logging Illegal logging is the harvest, transportation, purchase or sale of timber in violation of laws. The harvesting procedure itself may be illegal, including using corrupt means to gain access to forests; extraction without permission, or from a pro ...
has removed much of the original forests of the province. Less than half the original forest remains in places such as the Kayan Mentarang and the
Kutai Kutai is a historical region in what is now known as East Kalimantan, Indonesia on the island of Borneo and is also the name of the native ethnic group of the region (known as ''Urang Kutai'' or "the Kutai people"), numbering around 300,000 who ...
national parks. The projects that supports tropical rainforest conservation includes a WWF project and
Samboja Lestari Samboja Lestari is a Bornean orangutan (''Pongo pygmaeus'') rescue and rehabilitation centre, tropical rainforest restoration project, sun bear sanctuary, and eco-lodge located in the town of Samboja in East Kalimantan, Indonesia, owned and operat ...
lodge, one of
Borneo Orangutan Survival The Borneo Orangutan Survival (BOS) Foundation is an Indonesian non-profit non-governmental organization founded by Dr. Willie Smits in 1991 and dedicated to the conservation of the endangered Bornean orangutan (''Pongo pygmaeus'') and its habit ...
Foundation's reforestation and orangutan rehabilitation projects.


Economy

East Kalimantan's economy heavily depends on earth resources such as oilfield exploration, natural gas, coal and gold.
Balikpapan Balikpapan is a seaport city in East Kalimantan, Indonesia. Located on the east coast of the island of Borneo, the city is the financial center of Kalimantan. Balikpapan is the city with the largest economy in Kalimantan with an estimated 2 ...
has an oil refinery plant that was built by Dutch governance before World War II, destroyed during World War II, and rebuilt after Indonesian independence. Other developing economic sectors include agriculture and tourism. Obstacles to economic development include a lack of transportation infrastructure. Transportation depends on traditional boats connecting coastal cities and areas along main river,
Mahakam River The Mahakam River (Indonesian: ''Sungai Mahakam'') is third longest and volume discharge river in Borneo after Kapuas River and Barito River, it is located in Kalimantan, Indonesia. It flows from the district of Long Apari in the highlands of ...
. In 2012, Russia's state railway firm Joint Stock Company (JSC) signed a memorandum of understanding with the East Kalimantan governor over railway lines to transport coal and other freight. The first stage will connect an area near
Balikpapan Balikpapan is a seaport city in East Kalimantan, Indonesia. Located on the east coast of the island of Borneo, the city is the financial center of Kalimantan. Balikpapan is the city with the largest economy in Kalimantan with an estimated 2 ...
port to
West Kutai Regency West Kutai Regency ( id, Kabupaten Kutai Barat) is a regency (''kabupaten'') in the Indonesian province of East Kalimantan. It previously covered a much greater area, with a population of 165,091 at the 2010 Census, but in December 2012 the five no ...
in a 183-kilometer line and is estimated to cost about $1.8 billion. It will commence in 2013 and by 2017 it is hoped that it carry 20 million tons of coal annually. The second phase will connect a line to Murung Raya in
Central Kalimantan Central Kalimantan ( id, Kalimantan Tengah) is a province of Indonesia. It is one of five provinces in Kalimantan, the Indonesian part of Borneo. Its provincial capital is Palangka Raya and in 2010 its population was over 2.2 million, while the 2 ...
with a 60 kilometer line, which will cost an estimated $600 million. Several
oil field A petroleum reservoir or oil and gas reservoir is a subsurface accumulation of hydrocarbons contained in porous or fractured rock formations. Such reservoirs form when kerogen (ancient plant matter) is created in surrounding rock by the presence ...
s have been discovered in the
Mahakam River The Mahakam River (Indonesian: ''Sungai Mahakam'') is third longest and volume discharge river in Borneo after Kapuas River and Barito River, it is located in Kalimantan, Indonesia. It flows from the district of Long Apari in the highlands of ...
Delta Delta commonly refers to: * Delta (letter) (Δ or δ), a letter of the Greek alphabet * River delta, at a river mouth * D (NATO phonetic alphabet: "Delta") * Delta Air Lines, US * Delta variant of SARS-CoV-2 that causes COVID-19 Delta may also re ...
including Attaka, Badak (1971), Semberah, Nilam, Sanga Sanga, Bekapai (1972), Handil (1974), Samboja, Jakin and Sepinggan.Verdier, A.C., Oki, T., and Suardy, A., 1980, Geology of the Handil Field (East Kalimantan-Indonesia), in Giant Oil and Gas Fields of the Decade:1968-1978, AAPG Memoir 30, Halbouty, M.T., editor, Tulsa: American Association of Petroleum Geologists, , p. 401 The Handil, Badak and Bekapai fields are
anticline In structural geology, an anticline is a type of fold that is an arch-like shape and has its oldest beds at its core, whereas a syncline is the inverse of an anticline. A typical anticline is convex up in which the hinge or crest is the ...
structural trap In petroleum geology, a trap is a geological structure affecting the reservoir rock and caprock of a petroleum system allowing the accumulation of hydrocarbons in a reservoir. Traps can be of two types: stratigraphic or structural. Structural trap ...
s with
oil reservoir A petroleum reservoir or oil and gas reservoir is a subsurface accumulation of hydrocarbons contained in porous or fractured rock formations. Such reservoirs form when kerogen (ancient plant matter) is created in surrounding rock by the presence ...
sandstones Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar (both silicates) b ...
between 450 and 2900 m. The delta is in the Kutai basin, bounded by the Mankalihat and Paternoster carbonate arch, containing
Eocene The Eocene ( ) Epoch is a geological epoch (geology), epoch that lasted from about 56 to 33.9 million years ago (mya). It is the second epoch of the Paleogene Period (geology), Period in the modern Cenozoic Era (geology), Era. The name ''Eocene' ...
shale Shale is a fine-grained, clastic sedimentary rock formed from mud that is a mix of flakes of clay minerals (hydrous aluminium phyllosilicates, e.g. kaolin, Al2 Si2 O5( OH)4) and tiny fragments (silt-sized particles) of other minerals, especial ...
s overlain by Oligocene
fluvial In geography and geology, fluvial processes are associated with rivers and streams and the deposits and landforms created by them. When the stream or rivers are associated with glaciers, ice sheets, or ice caps, the term glaciofluvial or fluviog ...
deposits during
marine regression A marine regression is a geological process occurring when areas of submerged seafloor are exposed above the sea level. The opposite event, marine transgression, occurs when flooding from the sea covers previously-exposed land. Evidence of marine ...
, culminating in the formation of the delta in the late
Miocene The Miocene ( ) is the first geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and means "less recen ...
.


Demographics


Ethnicity

The most populous ethnic group in East Kalimantan is the Javanese (29.55%) who are spread in almost all regions, especially the transmigration areas to urban areas. The second largest ethnic group is Bugis (18.26%), which occupy many coastal areas and urban areas. The third largest ethnicity is Banjar (13.94%) who are quite dominant in the city of Samarinda and Balikpapan. East Kalimantan is a major destination of migrants from Jawa, Sulawesi and South Kalimantan.With population of approximately 3.859 million, and area of 127,347 km2, the province is considered sparsely populated. The fourth largest group is the Dayak (9.91%), which occupies the interior part of the province. Kutai (9.21%) which inhabit Kutai Kartanegara, East Kutai and West Kutai, was fifth. In the sixth to ten consecutively are Toraja (1.16%), Paser (1.89%), Sunda (1.59%), Madura (1.24%) and Auto Buton (1.25%), and the rest are other groups from various regions in Indonesia.


Language

People in East Kalimantan generally use Indonesian in official purposes and Banjarese for inter-ethnic communication. Due to the large number of Banjarese people in the province, their language became the main lingua franca especially in cities like Samarinda and Balikpapan. Besides Banjarese, there is a significant presence of Javanese and Buginese speakers as well, due to the large migration of Javanese and Buginese people into the region. Other languages spoken in East Kalimantan is
Kutai Malay Kutai is a Malayic language spoken by 300,000 to 500,000 people. It is the native language of the Kutai people (, Kutai: ''Urang Kutai''), the indigenous ethnic group which lives along the Mahakam River in Borneo, especially in North Kalimantan, ...
(a distinct Malay variety closely related but distinct from Banjarese), Paser (related to Lawangan),
Tidung The Tidung, Tidong ( Jawi: تيدوڠ) are a native group originating from northeastern part of Borneo and surrounding small islands. They live on both sides of the border of Malaysia and Indonesia. Tidung speak Tidong language, a North Borne ...
,
Berau Malay Berau, is a Malayic language which is spoken by Berau Malays in Berau Regency, East Kalimantan, Indonesia. It is one three native varieties of Malay in southern Borneo along with Banjar and Kutai, of which it forms a dialect continuum. Accordi ...
, Tunjung,
Bahau Bahau ( Jawi: بهااو, ) is the principal town of Jempol District, Negeri Sembilan, Malaysia. The town's name is believed to have been derived from a Chinese phrase. Bahau's literal translation is "horse's mouth" while the nearby town, Mahsan ...
, Modang Lundayeh and more others. However, Kutai, Paser, and
Kenyah languages The Kenyah languages are a group of half a dozen or so closely related languages spoken by the Kenyah peoples of Borneo. They are: : Kenyah proper (a dialect cluster, incl. Madang), Sebob, Tutoh (Long Wat), Wahau Kenyah, Uma’ Lung / Uma’ ...
are considered under the threat of extinction.


Religion

According to the 2021 estimates, 3,320,000 people are Muslims, 286,150 are Protestants, 168,140 are Roman Catholics, 15,630 are Buddhists, 8,500 are Hindus and 308 are Confucians or adhere to folk religions. File:Masjid Islamic Centre Samarinda.jpg, Islamic Centre Samarinda File:Catholic Center Sangatta.JPG, Sangatta Catholic Church File:Vihara Eka Dharma Manggala Samarinda.jpg, Eka Dharma Manggala Buddhist temple


References

{{Authority control . Provinces of Indonesia Mahakam basin Berau basin