South Sudan Rate of Natural Increase

South Sudan has one of the highest rates of natural increase (RNI) in the world, estimated at around 3% per year, driven by high birth rates and relatively high, though declining, death rates. This RNI is notably higher than most of its neighboring countries. For example, Uganda and Ethiopia also have high RNIs—approximately 2.7% and 2.5% respectively—but still fall slightly below South Sudan’s rate. In contrast, Sudan’s RNI is lower, around 2.1%, reflecting somewhat lower fertility rates and improvements in health conditions. Meanwhile, Kenya’s RNI is even lower, at about 1.9%, due to greater reductions in both birth and death rates. The high RNI in South Sudan underscores its youthful population and ongoing demographic challenges, particularly in the context of political instability and limited access to health services, which further distinguishes its demographic profile from its neighbors.

YearRate of Natural IncreasePopulation
20102.9789,765,126
20151.89211,177,737
20202.74310,560,984
20242.74612,703,714
20252.70313,300,066
20262.67513,786,294
20302.53215,309,115
20352.3417,304,109
20402.13819,360,800
20451.96621,466,512
20501.78923,592,886
20551.73725,784,590
20601.64728,075,939
20651.53630,415,116
20701.41132,752,161
20751.28835,048,438
20801.17537,285,125
20851.06839,446,128
20900.96241,511,377
20950.85143,447,997
21000.73645,218,042

Data from US Census International Database