Delta State is an oil and agricultural producing state of Nigeria, situated in the region known as the South-South geo-political zone with a population of 4,112,445 (males: 2,069,309; females: 2,043,136). The capital city is Asaba, located at the northern end of the state, with an estimated area of 762 square kilometres (294 sq mi), while Warri is the economic nerve center of the state and also the most populated. It is located in the southern end of the state. The state has a total land area of 16,842 square kilometres (6,503 sq mi). The state covers a landmass of about 18,050 km², of which more than 60% is land. The state lies approximately between Longitude 5°00 and 6°.45' East and Latitude 5°00 and 6°.30' North. It is bounded in the north and west by Edo State, the east by Anambra, Imo, and Rivers States, southeast by Bayelsa State, and on the southern flank is the Bight of Benin which covers about 160 kilometres of the state's coastline. Delta State is generally low-lying without remarkable hills. The state has a wide coastal belt inter-lace with rivulets and streams, which form part of the Niger Delta. There are various solid mineral deposits within state - industrial clay, silica, lignite, kaolin, tar sand, decorative rocks, limestone, etc. These are raw materials for industries such as brick making, ceramics, bottle manufacturing, glass manufacturing, chemical/insulators production, chalk manufacturing and sanitary wares, decorative stone cutting and quarrying. Delta state also has huge deposits of crude oil and is also one the largest producers of petroleum products in Nigeria.