The terrain gradually rises from plains in the north and center to southern highlands along the border with Uganda and Kenya; the White Nile, flowing north out of the uplands of Central Africa, is the major geographic feature of the country supporting agriculture and extensive wild animal populations; The Sudd (a name derived from floating vegetation that hinders navigation) is a large swampy area of more than 100,000 sq km fed by the waters of the White Nile
Hot with seasonal rainfall influenced by the annual shift of the Inter-Tropical Convergence Zone; rainfall is heaviest in the upland areas of the south and diminishes to the north
Nationality: South Sudanese (singular and plural)
Population: 11,562,695 (July 2014 est.)
Languages: English (official), Arabic (includes Juba and Sudanese variants), regional languages include Dinka, Nuer, Bari, Zande, Shilluk
Following several decades of civil war with Sudan, industry and infrastructure in landlocked South Sudan are severely underdeveloped and poverty is widespread. Subsistence agriculture provides a living for the vast majority of the population. South Sudan has little infrastructure. Electricity is produced mostly by costly diesel generators and indoor plumbing and potable water are scarce. South Sudan depends largely on imports of goods, services, and capital - mainly from Uganda, Kenya and Sudan.