This book examines the history of the political demography of Indonesia. Chronologically, the book begins by introducing the colonization program as a predecessor of transmigration program after independence. The transmigration program, Indonesia’s state policy on migration, is discussed at length in the book but other migration related issues are also presented to show the complex relationship between migration and other social, economic and political issues in Indonesia. In the final chapter, the book discusses the contemporary issues and challenges of disintegration that is facing Indonesia as a nation—state. The book ends with an epilog that shows Indonesia’s political demography challenges in the 21st Century.