Indonesia is the fourth most populous country in the world, characterized by extraordinary ethnic and linguistic diversity. The national motto, *Bhinneka Tunggal Ika* (Unity in Diversity), reflects this demographic tapestry.
| Category | Details | | :--- | :--- | | **Total Population** | ~278 Million (2023 est.) | | **Largest Ethnic Groups** | Javanese (~40%), Sundanese (~15%), Batak, Madurese, Betawi, Minangkabau, Bugis | | **Religions** | Islam (~87%), Protestantism (~7%), Catholicism (~3%), Hinduism (~1.7%), Buddhism (~0.7%) | | **Median Age** | ~30 years | | **Languages** | Indonesian (Bahasa Indonesia) is the official language. Over 700 local languages (e.g., Javanese, Sundanese) are spoken. | | **Urban/Rural** | ~57% Urban / 43% Rural |