Jakarta, officially the Special Capital Region of Jakarta, is the de facto capital and largest city of Indonesia and an autonomous region with a status equivalent to that of a province. It is located on the northwest coast of Java, the world's most populous island, bordered by the province of West Java to the south and east and Banten to the west. Its coastline faces the Java Sea to the north, and it shares a maritime border with Lampung to the west.
Jakarta's metropolitan area has an estimated population of 41.9 million as of 2025, making it the most populated city in the world and therefore of Southeast Asia and largest urban area in Indonesia.