Delta or 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 4,098,291 (males: 2,674,306; females: 2,024,085). Ngozi Okonjo-Iweala, the former Federal Minister of Finance and Coordinating of Economy and former World Bank Managing Director, is from the state. 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 located in the southern end of the state. The state has a total land area of 16,842 square kilometres (6,503 sq mi).