20 Interesting Facts About Indonesia

Indonesia is a country brimming with rich history, vibrant culture, and unique natural wonders. Although it’s a popular destination for travellers, many of its remarkable features remain lesser-known. In this article, we'll explore intriguing facts about Indonesia, from its islands and exotic flora and fauna to its culinary achievements and extraordinary geology. Dive into these fascinating details to gain a deeper understanding of this remarkable nation.
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1. The Second Longest Coastline in the World

Indonesia boasts an impressive coastline of approximately 54,716 kilometers, making it the second longest in the world, just after Canada. As the largest archipelago globally, Indonesia spans about 735,358 square miles (or approximately 1.9 million square kilometers), ranking 14th in size among countries. It is made up of 17,508 islands, with many remaining unnamed due to being uninhabited. Among these, Bali, Java, and Sumatra are particularly popular with tourists.
Additionally, Borneo is a unique island divided among three countries: Indonesia, Malaysia, and Brunei. The Indonesian portion, known as Kalimantan, is the largest, covering approximately 73% of the island. Malaysia’s states of Sarawak and Sabah account for about 26%, while Brunei controls less than 1% of Borneo.

2. A Rich Linguistic Diversity

Indonesia is one of the most linguistically diverse countries in the world, second only to the Amazon rainforest region. With over 700 languages and dialects spoken across its numerous islands, Indonesia’s linguistic landscape is a testament to its rich cultural heritage. Each island and region contributes its own unique languages, highlighting the nation’s vibrant and multifaceted identity.
However, this rich diversity is under threat, as many of these languages are endangered. Factors such as urbanization, modernization, and shifting cultural values contribute to the decline of smaller languages. Efforts are being made to document and revitalize these languages, but challenges remain in preserving Indonesia's linguistic heritage for future generations.

3. Over 100 Endangered Animals

Despite covering just 1% of the world’s land area, Indonesia’s tropical forests are a remarkable biodiversity hotspot. They harbour about 10% of all known plant species, 12% of mammal species, and 17% of bird species.
Image: Tarsius Tarsier, wikipedia.org
Often referred to as a "lost world" of Asia, Indonesia is home to many exotic animals that are critically endangered. Among these are the Sumatran tiger, Sumatran rhinoceros, Komodo dragon, orangutan, anoa (the world’s smallest buffalo), and the Tarsier, a tiny primate with large eyes that resemble those of the fictional character Dobby from Harry Potter.

4. Wild Orangutans

Sumatra is indeed one of only two places in the world where you can see wild orangutans in their natural habitat. The other place is Borneo, which is divided between Indonesia (Kalimantan) and Malaysia. In Indonesian, "orang" means "person" and "utan" means "forest," so "orangutan" translates to "forest person."
Image: flickr.com
In Sumatra, orangutans can be observed in Gunung Leuser National Park, located near the village of Bukit Lawang. This area is a popular destination for tourists, and local guides offer various activities such as wildlife tours, camping, conservation efforts, cave exploration, and river rafting.

5. Komodo Dragons

Indonesia is the only country where you can see Komodo dragons in the wild. These impressive reptiles are the largest lizards in the world, growing up to 3 meters (about 10 feet) in length. They inhabit five Indonesian islands: Komodo, Rinca, Flores, Padar, and Gili Motang.
Image: faunistics.com
Komodo dragons are known for their intimidating appearance and powerful build. They have a venomous bite, which can be deadly to their prey. Despite their fearsome reputation, the primary diet of Komodo dragons consists of animals like deer and wild boar, although they can take down larger prey. There have been occasional reports of Komodo dragons attacking humans, but such incidents are rare.
Visitors to the islands where Komodo dragons live should exercise caution and follow safety guidelines to avoid any potential risks associated with these powerful predators.

6. The Largest Flower in the World

Indonesia is home to one of the world's most unique plants: the Rafflesia arnoldii, commonly known as the corpse lily due to its foul odour when in bloom. This parasitic flower holds the record for the largest individual flower in the world. It primarily grows in the humid forests of Indonesia, although it can also be found in other parts of Southeast Asia.
Image: bibitbunga.com
Rafflesia arnoldii is extremely rare and blooms only briefly after several months of slow development. Once it blooms, it remains open for just a few days before wilting.
The flower is named after Sir Thomas Stamford Raffles and botanist Joseph Arnold, who discovered it during an expedition in the early 19th century. There are about 55 known species of Rafflesia, but Rafflesia arnoldii is notable for its size. Its petals can span over 1 meter (about 3.3 feet) in diameter, and it can stand up to 50 cm (about 20 inches) tall and weigh up to 10 kg (about 22 pounds). The plant lacks roots, stems, and leaves, surviving as a parasite by feeding on a host plant, typically within the Tetrastigma genus.

7. Indonesia Ranks Third in Volcanoes

Indonesia is home to over 400 volcanoes, making it the third most volcanic country in the world, following Russia and the USA. Of these, 139 are currently active, and the country experiences about four minor earthquakes daily, highlighting its status as one of the most seismically active regions on Earth.
In 2018, the Agung volcano on Bali made headlines when its eruption forced the evacuation of thousands and led to a suspension of air travel to the island for several weeks.
Image: Krakatoa, cattur.ru/asia
Another significant event in Indonesia’s volcanic history was the eruption of Krakatoa in 1883, located between Java and Sumatra. This catastrophic eruption caused two massive tsunamis, claiming over 36,000 lives and destroying 165 coastal villages. The eruption was so powerful that its explosion was heard over 4,600 kilometres away, affecting about one-thirteenth of the Earth's surface. Volcanic ash from Krakatoa created enormous smoke clouds, disrupting air travel in the region, and leading to unusual sunsets observed in New York and other cities for three years.
Additionally, Indonesia features a unique acidic lake on the island of Java near the Kawah Ijen volcano. This lake contains sulfuric acid, giving the water a striking range of colours from turquoise to acid green. While visually stunning, the lake’s acidity makes it hazardous.

8. The Highest and Snowiest Mountain in Indonesia

While Indonesia is known for its tropical climate and sunny weather, it is home to a unique natural wonder. Mount Puncak Jaya, located in Papua, is the highest mountain in Indonesia, standing at 4,884 meters (16,024 feet) above sea level. This peak is notable for its small, but persistent, ice cap—a rare sight near the equator.
Image: blibli.com
The ice and snow at the top of Mount Puncak Jaya create a striking contrast with the surrounding tropical environment. Even though this ice and snow are remnants from earlier ice ages and are affected by the strong sunlight, they still reflect the light beautifully, creating a bright and sparkling effect.
Climbers refer to the mountain as Carstensz Pyramid, named in honour of explorer Jan Carstensz, who first reported seeing its snowy peak during his 1623 expedition. Mount Puncak Jaya is also listed among the Seven Summits, representing the highest peaks on each of the seven continents.

9. Jakarta: A Top Instagrammable Destination in Asia

Image: all.accor.com
Jakarta, the capital of Indonesia, is ranked as the eighth most Instagrammable city in the world. This vibrant metropolis is brimming with picturesque locations and popular tourist spots, making it a favourite for Instagram enthusiasts seeking to capture stunning photos.

10. The World's Largest Buddhist Temple

Constructed in the 9th century, Borobudur Temple in Central Java is the largest Buddhist temple in the world. It boasts 1,460 relief panels, making it the most extensive and complete collection of Buddhist reliefs globally. The temple, dedicated to Buddha and housing 504 Buddha statues, serves as a significant pilgrimage site for Buddhists.
Image: wikiwand.com
Borobudur's design reflects Buddhist cosmology, with its levels representing the three realms: the world of desires, the world of forms, and the world of formlessness.

11. Indonesia's Death Penalty Process

Indonesia continues to enforce the death penalty by firing squad, a method that has been in place since 1964. The death penalty is reserved for the most severe crimes, such as drug trafficking and murder. Inmates often spend many years on death row before their sentences are carried out.
The process involves a thorough legal procedure: following the initial court trial, inmates can appeal the decision twice and request a pardon from the President of Indonesia. If all these steps fail to overturn the sentence, the inmate and their family are notified 72 hours before the execution. Executions typically occur on Nusa Kambangan Island.
On the day of execution, inmates are woken in the middle of the night, blindfolded, and transported to a remote location. There, they have the option to stand or sit before being executed by a firing squad.

12. A Wealth of Diving Spots

Image: freepik.com
Indonesia is renowned for its stunning diving sites, making it a top destination for underwater enthusiasts. The country boasts an impressive number of diving locations, each showcasing breath-taking underwater beauty. Known as a paradise for divers, Indonesia offers a diverse range of spots to explore, including the renowned Misool Island in Raja Ampat, Bunaken Marine Park, Labuan Bajo, Bali, Wakatobi, and the Derawan Islands.

13. Flag Design Similarities

The flags of Indonesia, Monaco, and Poland all feature a red and white color scheme. However, while Indonesia and Poland display these colors in reverse order, Monaco's flag uses the same sequence as Indonesia’s.
Image: google.com
Monaco once contested this similarity by filing a lawsuit against Indonesia. During the legal proceedings, it was revealed that the red and white flag has ancient origins in Indonesia, dating back to the Majapahit Kingdom in the 14th century—long before Indonesia officially adopted it in the 20th century. As a result, the international court upheld Indonesia's historical claim to the flag design and dismissed Monaco's lawsuit.

14. Peanut Production

Indonesia is a major producer of peanuts, which are a staple ingredient in many local dishes. One of the most popular is Gado-Gado, a traditional Indonesian salad known for its rich peanut sauce, commonly enjoyed at both street food stalls and high-end restaurants.
Image: radarlebong.bacakoran.co
The peanut sauce is made from a blend of simple ingredients: onions, garlic, oil, chili peppers, lime juice, peanut paste, coconut milk, green beans, cucumber, pepper, boiled eggs, and cilantro. Additionally, many warungs (local eateries) offer packets of roasted peanuts seasoned with salt, garlic, chili peppers, or other spices.
Peanuts are valued for their health benefits. They are rich in calcium, magnesium, iron, and various vitamins, which contribute to a balanced diet when consumed in moderation.

15. Types of Sugar in Indonesia

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In addition to regular sugar, Indonesia offers a variety of unique sugars, each with its distinct characteristics:
·       Gula Batu (Rock Sugar): Made from white or brown sugar that is dissolved and crystallized into stone-like shapes. Although it is solid, it has a lighter, less sweet taste. One tablespoon contains 6.5 grams of carbohydrates and 25 calories.
·       Gula Aren (Palm Sugar): Considered a healthier option, palm sugar is rich in potassium, which supports heart and blood vessel health. It is a natural sweetener that can be beneficial for people with high blood pressure (hypertension). However, it should still be consumed in moderation.
·       Gula Merah / Gula Jawa (Red Sugar / Javanese Sugar): Known for its use in desserts, red sugar is derived from coconut palm sap and is shaped into cylinders. It is often melted into a thick, sticky liquid.
·       Corn Sugar: Made from ground corn and turned into syrup, corn sugar is often used as a substitute for regular sugar. It has similar health risks as regular sugar when consumed in excess.
·       Caramel Sugar and Syrup: Produced by heating sugar until it thickens, caramel sugar and syrup are used for flavouring and colouring in baking. Caramel syrup is high in calories, with around 110 calories in two tablespoons. It is advisable to limit consumption to avoid obesity and heart disease.
·       Stevia: A natural sweetener that serves as an alternative to regular sugar. Ideal for those who need to avoid white or other sugars, stevia can be used in sweet tea and baked goods. It is available online at a low cost, especially during discount periods.

16. Tofu and Tempeh: Unique Indonesian Delicacies

Tofu, or tahu, often referred to as soy cheese, is a soft, neutral-tasting product made from coagulated soy milk. Popular throughout East and Southeast Asia, tofu is a nutritious source of protein and is ideal for vegetarians. Its high calcium content also supports bone health and helps prevent osteoporosis.
Image: alodokter.com
Tempeh, a traditional Indonesian food, is made from fermented soybeans. Unlike tofu, tempeh has a distinctive nutty flavour and a firmer texture due to its fermentation process. It can be fried, baked, steamed, or used in various dishes. In Indonesia, tempeh is often marinated, served in broth, or fried to a crispy texture. It's valued for its high nutritional content, its ability to absorb spices, and its health benefits, including immune system support, heart health, and weight management.
Both tofu and tempeh are staples in Indonesian cuisine, playing a crucial role in the country’s rich gastronomic tradition.

17. Guinness World Record for the Largest Pack of Noodles

In 2005, Indonesian company PT Indofood Sukses Makmur Tbk set a Guinness World Record for the largest pack of instant noodles. The massive pack measured 3.4 meters by 0.47 meters and weighed an impressive 664.938 kilograms—approximately 8,000 times larger than a standard noodle pack. This giant version was a replica of the standard Indomie Mi Goreng pack, complete with the usual seasoning sachets, and was deemed fit for consumption.

18. A Satellite Pioneer

Image: liputan6.com
Indonesia has achieved several notable milestones, including significant advancements in space technology. On July 8, 1976, Indonesia became the first developing country to launch and operate its own satellite communication system with the successful deployment of its first satellite, Palapa. The Palapa satellite, part of a series owned by Indonesian telecommunications company Indosat, marked a significant achievement in global satellite communication for developing nations. The satellite was launched with the assistance of the United States and played a crucial role in enhancing communication capabilities in Indonesia.

19. A High Population Level

With a population of over 273 million people, Indonesia is the 4th most populous country in the world, behind China, India, and the United States. As the largest nation in Southeast Asia, Indonesia has a diverse and rapidly growing society. This growth presents challenges in areas such as sustainable development, education, healthcare, and infrastructure.
Image: okezone.com
Historically, large family sizes were common, but government family planning initiatives have aimed to encourage smaller families. The "Two Child" policy has helped reduce the average family size, though the population continues to grow.
An interesting fact: Indonesia has a notably young population, with a significant proportion under the age of 30. This youthful demographic is a key feature of the country’s population structure, while only a small percentage of the population is over 60.
Indonesia’s ongoing population growth is a critical factor in its development, and current projections suggest it will continue to grow rapidly. The country takes great pride in its rich cultural heritage, which brings together numerous ethnic groups and languages. Additionally, Indonesia actively participates in global affairs through various international organizations, contributing to both economic and political discussions on the world stage.

20. An Affordable Destination for Global Travelers

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Indonesia is recognized for its affordability as a travel destination. According to a report by the World Economic Forum on travel and tourism competitiveness, Indonesia ranks among the top five countries for price competitiveness, following Algeria, Malaysia, Egypt, and Iran. This ranking is based on factors such as safety, infrastructure, health, and cultural resources. With its diverse attractions and cost-effectiveness, Indonesia is a popular choice for international tourists seeking extended vacations.
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