The population of South Sudan is expected to grow by 363,000 in 2025 and reach 15,761,000 in 2026. On average there are 498,213 births and 138,078 deaths in South Sudan per year. Rate of natural increase is approximately 2.34 percent per year. The population density of South Sudan has changed from 7.7 in 1980 to 24.0 in 2023.
| Current population | 15,587,526 people at present (Friday 11th of July 2025) | |
| Median Age | 23.9 years |
| Life expectancy | 60.9 years | |
| Population density | 25.2 per km2 |
| Year | Population | Year change | Migrants | Median age | Fertility rate | Density (Ppl/km2) | Urban population |
|---|---|---|---|---|---|---|---|
| 2025 | 15,395,000 | 363,000 (2.4%) | 23.9 | 4.18 | 25 | 3,333,000 (21.6%) | |
| 2024 | 15,032,000 | 360,000 (2.4%) | 10,000 | 23.8 | 25 | 3,202,000 (21.3%) | |
| 2023 | 14,672,000 | 358,000 (2.4%) | 10,000 | 23.7 | 24 | 3,077,000 (21.0%) | |
| 2022 | 14,314,000 | 354,000 (2.5%) | 10,000 | 23.6 | 23 | 2,956,000 (20.7%) | |
| 2021 | 13,960,000 | 350,000 (2.5%) | 10,000 | 23.5 | 23 | 2,841,000 (20.3%) | |
| 2020 | 13,610,000 | 347,000 (2.6%) | 10,000 | 23.4 | 4.54 | 22 | 2,730,000 (20.1%) |
| 2019 | 0 | 0 (0.0%) | 30,000 | 23.3 | 4.62 | 22 | 2,624,000 (19.8%) |
| 2018 | 0 | 0 (0.0%) | 30,000 | 23.2 | 4.70 | 21 | 2,522,000 (19.5%) |
| 2017 | 0 | 0 (0.0%) | 30,000 | 23.1 | 4.78 | 21 | 2,423,000 (19.3%) |
| 2016 | 0 | 0 (0.0%) | 30,000 | 23.1 | 4.86 | 20 | 2,327,508 (19.0%) |
| 2015 | 11,882,136 | 351,165 (3.0%) | 30,000 | 23.0 | 4.94 | 19 | 2,234,317 (18.8%) |
| 2010 | 10,067,192 | 396,525 (3.9%) | 85,000 | 22.7 | 5.38 | 17 | 1,797,497 (17.9%) |
| 2005 | 8,108,877 | 321,222 (4.0%) | 157,000 | 22.4 | 5.80 | 13 | 1,390,997 (17.2%) |
| 2000 | 6,700,656 | 294,792 (4.4%) | 86,400 | 22.3 | 6.22 | 11 | 1,105,876 (16.5%) |
| 1995 | 5,459,519 | 27,781 (0.5%) | 80,000 | 22.3 | 6.55 | 9 | 866,589 (15.9%) |
| 1990 | 5,768,481 | -9,017 (-0.2%) | -215,200 | 22.4 | 6.76 | 9 | 765,824 (13.3%) |
| 1985 | 5,450,424 | 130,815 (2.4%) | -81,000 | 22.4 | 6.81 | 9 | 536,540 (9.8%) |
| 1980 | 4,705,224 | 135,801 (2.9%) | 30,000 | 22.4 | 6.85 | 8 | 400,838 (8.5%) |
| 1975 | 4,119,438 | 102,363 (2.5%) | 12,000 | 22.4 | 6.92 | 7 | 353,283 (8.6%) |
| 1970 | 3,647,709 | 83,244 (2.3%) | 5,000 | 22.5 | 6.88 | 6 | 314,907 (8.6%) |
| 1965 | 3,263,638 | 67,525 (2.1%) | 22.7 | 6.80 | 5 | 283,610 (8.7%) | |
| 1960 | 2,955,152 | 55,958 (1.9%) | 22.8 | 6.72 | 5 | 258,517 (8.7%) |
In 2024 the population of South Sudan was 15,032,000 and the average age increased from 22.8 in 1960 to 23.8. Urban population has increased from 1,105,876 (16.5%) in 2000 to 3,333,000 (21.6%) in the current year. The population density of South Sudan has changed from 7.7 in 1980 to 24.0 in 2023.
| Year | Population | Year change | Migrants | Median age | Fertility rate | Density (Ppl/km2) | Urban population |
|---|---|---|---|---|---|---|---|
| 2020 | 0 | 0 (0.0%) | 10,000 | 23.4 | 4.54 | 22 | 2,730,000 (20.1%) |
| 2025 | 15,395,000 | 363,000 (2.4%) | 23.9 | 4.18 | 25 | 3,333,000 (21.6%) | |
| 2030 | 17,254,000 | 377,000 (2.2%) | -5,000 | 24.5 | 3.85 | 28 | 4,073,000 (23.6%) |
| 2035 | 19,183,000 | 392,000 (2.0%) | -5,000 | 25.3 | 3.57 | 31 | 4,975,000 (25.9%) |
| 2040 | 21,189,000 | 407,000 (1.9%) | -5,000 | 26.1 | 3.32 | 35 | 6,031,000 (28.5%) |
| 2045 | 23,257,000 | 418,000 (1.8%) | -5,000 | 26.9 | 3.11 | 38 | 7,241,000 (31.1%) |
| 2050 | 25,366,000 | 424,000 (1.7%) | -5,000 | 27.8 | 2.94 | 42 | 8,609,000 (33.9%) |
The life expectancy at birth should reach 68.5 (66.8 years for male and 70.4 years for females). Population density will go up to 41.5 people per square kilometer.
The demographics of South Sudan constitutes of 7,668,000 women and 7,727,000 men, which means there are 1,008 men per 1000 women. As far as age distribution goes, 50.3% of population (7,745,225) is 19 or younger, 46.2% of population (7,118,648) is between age 20 and 64 and 3.4% of population (528,049) is over 65.