Serang is a regency of Banten province, Indonesia. The administrative center of the regency and the capital of the province is the city of Serang. The regency has an area of 1,734.095 km² and population of 1,834,514 (2005). Serang is about 10 km from Old Banten, the province's former capital. Merak, a major port and ferry terminal, is located just west of the regency.