Khartoum (state)
Khartoum State () is one of the eighteen states of Sudan. Although it is the smallest state by area (22,142 km), it is the most populous (5,274,321 in 2008 census). It contains the country's second largest city by population, Omdurman, and the city of Khartoum, which is the capital of the state as well as the national capital of Sudan. The capital city contains offices of the state, governmental and non-governmental organizations, cultural institutions, and the main airport.
Central Equatoria
Central Equatoria State was one of the original ten states of South Sudan. With an area of 43,033 km², it was the smallest of the original South Sudanese states. Its previous name was "Bahr al Jabal", named after a tributary of the White Nile that flows through the state. It was renamed to its present name of "Central Equatoria" in the first Interim Legislative Assembly on 1 April 2005 under the government of Southern Sudan. Central Equatoria seceded from Sudan as part of the Republic of South Sudan on 9 July 2011. The former state's capital of Juba is also the national capital of South Sudan. The state split into three smaller states on 2 October 2015.