Port Harcourt is the capital and largest city of Rivers State in Nigeria. It is the fifth most populous city in Nigeria after Lagos, Kano, Ibadan and Benin. It lies along the Bonny River and is located in the oil rich Niger Delta region. As of 2023, Port Harcourt's urban population is approximately 3,480,000. The population of the metropolitan area of Port Harcourt is almost twice its urban area population with a 2015 United Nations estimate of 2,344,000.