Geography: ~ 5,000km from Sabang (Aceh) to Merauke (Papua); ~ 17,500 islands, one third of which is inhabited
Area: land 1.9 million km2 • sea 3.1 million km2
Population density: ~ 130/km2, highly variable across regions (Java, for instance, harbours more than 50% of the population on 7% of the country's surface...)
Religions: Islam (90%), Hinduism (Bali), Buddhism, Catholicism and Protestantism (mainly East of the country); animism in a few regions
