South Tangerang is a city in the province of Banten, Indonesia. Located 30 km (19 mi) on the southwestern border of Jakarta, the city forms part of the Greater Jakarta metropolitan area. It was administratively separated from Tangerang Regency on 26 November 2008. According to the 2020 Census, the city population was 1,354,350 inhabitants, while the official estimate as at mid 2023 was 1,404,785 - comprising 700,754 males and 704,031 females. The total area is 164.85 km2 (63.65 sq mi). It is the second-largest city in Banten in terms of population, and has grown rapidly, not only as Jakarta's satellite city, but also the development of business districts and commerce due to presence of large-scale planned town by private developers.

Jakarta, officially the Special Capital Region of Jakarta and formerly known as Batavia until 1949, is the nation's capital city and the centre of the largest metropolis of Indonesia. 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. Jakarta is bordered by two provinces: West Java to the south and east; and Banten to the west. The Special Capital Region has a status equivalent to that of a province. 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.