Aba is a major commercial hub in southeastern Nigeria and the largest city in Abia State, with an estimated population of 2,534,265 as of 2016. Founded by the Ngwa clan of the Igbo people as a market town, it grew into a key agricultural collection point after the British colonial administration established a railway connecting it to Port Harcourt. The city, divided into Aba South and Aba North for administrative purposes, lies along the Aba River and serves as a crossroads for major roads linking Port Harcourt, Owerri, Umuahia, and other cities. Renowned for its skilled craftsmen, Aba remains a vibrant center of trade and industry in the region.