The U.S. embassies in Nigeria have two locations: one in Abuja, the nation's capital, and one in Lagos. Although Abuja is, as of 2015, Nigeria's seat of government, Lagos is a much larger city and a commercial center for the region of West Africa.
The twin U.S. embassies are located in Nigeria's former and its current capitols.
Abuja was officially established as the Nigerian capitol in 1991, after an extensive period of city planning. It is centrally located so as to maintain political neutrality between regions. However, it is not particularly well-populated.
Lagos, the former capitol, is Nigeria's most populous city and one of the most rapidly growing cities in the world. It is located on the southwest coast of the country. The U.S. embassy at Lagos is located in Victoria Island, the city's financial center.