South Sudan’s population rose to 12.2 m people in 2025.

Neither way is good in itself. A larger population brings more workers and customers and also more demand for food, schools and clinics, so the direction alone does not make the measure better or worse. The latest estimate is 12.2 million, up from 11.9 million a year earlier, a rise of 0.25 million or 2.1%. Since 2016 the lowest figure was 10.1 million in 2018, and the current 12.2 million is the highest in that span.

Why it matters. With 12.2 million people and growth of 2.1%, South Sudan needs to extend food supply, schooling and health services to roughly 0.25 million more people each year. Households feel this in crowding at local services and in competition for work and land. For the state, a bigger population widens the future tax base only if jobs and incomes grow with it.