Belgium vs South Sudan
South Sudan has about the same population as Belgium: 12,188,788 vs 11,941,781, a gap of 247,007. South Sudan is growing faster (+2.03% vs +0.70% a year), adding about 247,884 people a year against +83,462. Belgium is the older society: 21.0% aged 65+ against 3.1% in South Sudan, while South Sudan has more children (38.0% under 15 vs 15.7%). Belgium is 21.3× as densely populated (386.3 vs 18.2 people per km²). People in Belgium live 24.6 years longer on average (82.3 vs 57.7). GDP per capita is 56.2× higher in Belgium ($60,750 vs $1,080).
Country/territory population bases: World Bank 2025 (Belgium) and 2025 (South Sudan); growth years 2025 / 2025. Annual source values, not live counts; years may differ. Growth is national, not local.
Belgium vs South Sudan — side by side
 Belgium |  South Sudan | |
|---|---|---|
| Population | 11,941,7812025 | 12,188,7882025 |
| Growth rate / yr | +0.70%2025 | +2.03%2025 |
| Births per 1,000 | 9.22024 | 29.22024 |
| Deaths per 1,000 | 9.52024 | 9.82024 |
| Children per woman | 1.442024 | 3.792024 |
| Life expectancy | 82.3 yrs2024 | 57.7 yrs2024 |
| Aged 0–14 | 15.7%2025 | 38.0%2025 |
| Aged 65+ | 21.0%2025 | 3.1%2025 |
| Density | 386.3 /km²2023 | 18.2 /km²2023 |
| Area | 30,689 km²2023 | 646,883 km²2023 |
| Urban population | 87.7%2025 | 21.7%2025 |
| Net migration / yr | +31,9892025 | +6,1452025 |
| GDP per capita | $60,7502025 | $1,0802015 |
| Country population rank (available records) | #81 | #80 |
| Base / world population (World Bank 2025) | 0.15% | 0.15% |
Highlighted cell = the higher value (not "better"). Small print under each value is its own data year. Source: World Bank; country/territory population bases may have different years. These are not live counts.
Population since 1960
World Bank population history (not the separate UN WPP timeline). Belgium: 1.3× from 1960 to 2025; South Sudan: 4.2× from 1960 to 2025. Left: absolute population. Right: each series indexed to its own first available year = 100; baseline years may differ.
More comparisons
Regions: Europe & Central Asia · Sub-Saharan Africa · rankings
Belgium: Belgium vs Bolivia, Belgium vs Tunisia, Belgium vs South Sudan, Belgium vs Haiti, Belgium vs Jordan, Belgium vs Dominican Republic.
South Sudan: South Sudan vs Burundi, South Sudan vs Bolivia, South Sudan vs Tunisia, South Sudan vs Belgium, South Sudan vs Haiti, South Sudan vs Jordan.
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