South Sudan Population Pyramid 1979
Year
1979South Sudan in 1979
In 1979, South Sudan had a total population of 4,232,604 people. Over the previous ten years the population grew by 25.8%, up from 3,365,533 in 1969.
Half of the population was younger than 17.1 years; 45.7% were children under 15 and 2.4% were 65 or older. This is an expansive pyramid — each cohort of children is larger than the one above it, the signature of high birth rates and rapid growth.
Data source: United Nations World Population Prospects, 2024 revision (medium variant) — last updated July 2024.
The fertility rate of South Sudan was 3.86 births per woman in 2023, above the 2.1 needed to replace each generation.
Source: World Bank World Development Indicators, latest available year.
Life expectancy at birth was 57.6 years in 2023: 60.6 for women and 54.6 for men.
Source: World Bank World Development Indicators, latest available year.
911,341 immigrants live in South Sudan, 7.6% of the population.
| Sudan | 608,817 |
| Uganda | 156,437 |
| D.R. Congo | 97,364 |
| Ethiopia | 13,582 |
| Kenya | 10,153 |
3,168,836 people born in South Sudan live in other countries.
| Sudan | 1,507,976 |
| Uganda | 923,658 |
| Ethiopia | 443,743 |
| Kenya | 114,885 |
| D.R. Congo | 103,594 |
Source: United Nations International Migrant Stock 2024.
| Country | Population | Median age | Relative size |
|---|---|---|---|
| South Sudan | 4,232,605 | 17.1 | |
| Burundi | 4,203,530 | 17.0 | |
| Rwanda | 5,189,541 | 16.5 | |
| Somalia | 5,449,117 | 17.6 | |
| Zambia | 5,631,728 | 15.3 |





