Lagos is the 4th most populous city in the world, and the most populous urban area in Africa.  Lagos is a major African financial centre and is the economic hub of Lagos State and Nigeria at large.

Lagos Island (Ìsàlẹ̀ Èkó) is the principal and central local government area (LGA) in Lagos, it was the capital of Lagos State until 1957. It is part of the Lagos Division. As of the preliminary 2006 Nigerian census, the LGA had a population of 209,437 in an area of 8.7 km². The LGA only covers the western half of Lagos Island; the eastern half is simply referred to as Lagos Island East LCDA