 At the 2006 census, the city of Abuja had a population of 776,298, making it then the eighth most populous city in Nigeria.United Nations figures showed that Abuja grew by 139.7% between 2000 and 2010, making it the fastest growing city in the world., the city is experiencing an annual growth of at least 35%, retaining its position as the fastest-growing city on the African continent and one of the fastest-growing in the world.