Borneo: Largest Island in the Malay Archipelago

Borneo is the largest island in the Malay Archipelago (and the third-largest globally after Greenland and New Guinea).

• Area: 743,330 km² (287,000 sq mi)
• Population: ~23 million (2023)
• Political Division: Three countries:
  • Indonesia (Kalimantan) – ~73% of land
  • Malaysia (Sabah, Sarawak) – ~26%
  • Brunei – ~1%
• Biodiversity: Ancient rainforests (140M years old); orangutans, pygmy elephants, proboscis monkeys, Rafflesia (largest flower).
• Resources: Oil, gas, timber, palm oil, coal.

Borneo's strategic location and resources make it geopolitically and ecologically critical.