Jakarta, officially the
Special Capital Region of Jakarta and formerly known as Batavia until 1949, is the capital city of Indonesia and an autonomous region at the provincial level. Lying on the northwest coast of Java, the world's most populous island, Jakarta is the largest metropole in Southeast Asia and serves as the diplomatic capital of ASEAN. The Special Region has a status equivalent to that of a province and is bordered by two other provinces: 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 is ASEAN's second largest economy after Singapore. In 2023, the city's GDP PPP was estimated at US$724.010 billion.