Lagos is the largest urban agglomeration in Nigeria and one of the biggest and fastest growing megacities in the world, with population estimates ranging from 12 to over 20 million people. The built-up area is situated along the banks of the western portion of Lake Lagoon and expands to the north, following the expressway to Abeokuta and Ibadan. Although the urban extension is mainly contained within the administrative boundaries of Lagos State, the city has begun to stretch beyond its borders, expanding in the direction of the main transport routes into Ogun State.

Abeokuta is the largest urban centre and capital of Ogun State, located in the South West Geopolitical Zone of Nigeria. Ogun State lies to the north of Lagos State, to the west of Ondo State, and to the south of Oyo State and Osun State. Abeokuta is built in the centre of the Lagos-Ibadan extended urban region or conurbation, and forms part of the larger metropolitan economic area. This strategic location, matched with the presence of diverse local resources, rapid population growth and enhanced political status has generated dynamic economic activities.