Enugu (/eɪˈnuːɡuː/ ( listen) ay-NOO-goo;Igbo: Énugwú) is the capital of Enugu State in Nigeria. It is located in southeastern Nigeria. The city had a population of 722,664 according to the 2006 Nigerian census. The name Enugu is derived from the two Igbo words Énú Ụ́gwụ́ meaning "hill top" denoting the city's hilly geography. The city was named after Enugwu Ngwo, under which coal was found.