Prakasam district is one of the twelve districts in the coastal Andhra region of the Indian state of Andhra Pradesh. It was formed in 1970 and reorganised on 4 April 2022. The headquarters of the district is Ongole. It is located on the western shore of Bay of Bengal and is bounded by Bapatla district and Palnadu districts in the north, Nandyal district in the west, Kadapa and Nellore districts in the south. A part of north west region also borders with Nagarkurnool district of Telangana. It is the largest district in the state with an area of 14,322 km2 (5,530 sq mi) and had a population of 22,88,026 as per 2011 Census of India.