occasional floods; severe droughts; tsunamis; earthquakes; volcanoes; forest fires
volcanism: Indonesia contains the most volcanoes of any country in the world - some 76 are historically active; significant volcanic activity occurs on Java, Sumatra, the Sunda Islands, Halmahera Island, Sulawesi Island, Sangihe Island, and in the Banda Sea; Merapi (2,968 m), Indonesia's most active volcano and in eruption since 2010, has been deemed a Decade Volcano by the International Association of Volcanology and Chemistry of the Earth's Interior, worthy of study due to its explosive history and close proximity to human populations; on 22 December 2018, a large explosion and flank collapse destroyed most of the 338 m high island of Anak Krakatau (Child of Krakatau) and generated a deadly tsunami inundating portions of western Java and southern Sumatra leaving more than 400 dead; other notable historically active volcanoes include Agung, Awu, Karangetang, Krakatau (Krakatoa), Makian, Raung, Sinabung, and Tambora; see note 2 under "Geography - note"
slightly less than three times the size of Texas
major transit point and destination for illicit narcotics; a destination for methamphetamine, ecstasy, and other illicit drugs; methamphetamine production facilities within Indonesia
Indonesia-Australia: all borders have been agreed upon bilaterally, but a 1997 treaty that would settle the last of their maritime and EEZ boundary has yet to be ratified by Indonesia's legislature; Indonesian groups challenge Australia's claim to Ashmore Reef; Australia has closed parts of the Ashmore and Cartier Reserve to Indonesian traditional fishing and placed restrictions on certain catches
Indonesia-Malaysia: territorial disputes resulting from competing interpretations of colonial era documents have prevented a full demarcation of the land border where there are several areas under dispute; negotiations continue; the two countries have not agreed to any EEZ boundaries; disputed maritime areas includes the Ambalat block in the Celebes Sea
Indonesia-Palau: discussions on reaching an agreement on a partial EEZ boundary line continue
Indonesia-Papua New Guinea: Papua New Guinea ratified an agreement governing the border in 2023; migrants and separatists crossing the porous 760-kilometer (472-mile) border have complicated diplomatic relations
Indonesia-Philippines: have ratified EEZ boundary agreements that were initially signed in 2014
Indonesia-Singapore: continue to work on finalizing their 1973 maritime boundary agreement by defining unresolved areas north of Indonesia's Batam Island
Indonesia-Timor Leste: as of 2023, negotiations were ongoing on remaining two segments of the land border under dispute (Bidjael Sunan-Oben and Noel Besi-Citrana) and the maritime borders from Batugade to Atauro and from Atauro to Jaco
Indonesia-Vietnam: agreed on a continental shelf boundary agreement with Vietnam in 2003 which produced a border around 250 nautical miles long, but the two countries continue to negotiate an agreement regarding EEZ delimitations in the South China Sea
Indonesia has the world’s fourth-largest population. It is predominantly Muslim and has the largest Muslim population of any country in the world. The population is projected to increase to as much as 320 million by 2045. A government-supported family planning program. The total fertility rate (TFR) – the average number of births per woman – from 5.6 in the mid-1960s to 2.7 in the mid-1990s. The success of the program was also due to the social acceptance of family planning, which received backing from influential Muslim leaders and organizations.
The fertility decline slowed in the late 1990’s when responsibility for family planning programs shifted to the district level, where the programs were not prioritized. Since 2012 the national government revitalized the national family planning program, and Indonesia’s TFR has slowly decreased to 2.3 in 2020. The government may reach its goal of achieving replacement level fertility – 2.1 children per woman – but the large number of women of childbearing age ensures significant population growth for many years.
Indonesia is a source country for labor migrants, a transit country for asylum seekers, and a destination mainly for highly skilled migrant workers. International labor migration, both legal and illegal, from Indonesia to other parts of Asia (most commonly Malaysia) and the Middle East has taken place for decades because of high unemployment and underemployment, poverty, and low wages domestically. Increasing numbers of migrant workers are drawn to Australia, Canada, New Zealand, and the US. The majority of Indonesian labor migration is temporary and consists predominantly of low-skilled workers, mainly women working as domestics.
Indonesia’s strategic location between Asia and Australia and between the Pacific and Indian Oceans – and its relatively easy accessibility via boat – appeal to asylum seekers. It is also an attractive transit location because of its easy entry requirements and the ability to continue on to Australia. Recent asylum seekers have come from Afghanistan, Burma (Rohingyas), Iraq, Somalia, and Sri Lanka. Since 2013, when Australia tightening its immigration policy, thousands of migrants and asylum seekers have been stranded in Indonesia, where they live in precarious conditions and receive only limited support from international organizations. The situation for refugees in Indonesia has also worsened because Australia and the US, which had resettled the majority of refugees in Indonesia, have significantly lowered their intake.