Indonesia vs South Korea
Indonesia has 5.5× the population of South Korea: 285,721,236 vs 51,684,564, a gap of 234.0 million. Indonesia is growing faster (+0.78% vs −0.13% a year), adding about 2,242,079 people a year against −66,458. At these source-year rates the modelled relative population gap is widening. South Korea is the older society: 20.3% aged 65+ against 7.5% in Indonesia, while Indonesia has more children (24.2% under 15 vs 10.2%). South Korea is 3.6× as densely populated (529.8 vs 148.6 people per km²). People in South Korea live 12.3 years longer on average (83.6 vs 71.3). GDP per capita is 7.2× higher in South Korea ($36,227 vs $5,060).
Country/territory population bases: World Bank 2025 (Indonesia) and 2025 (South Korea); growth years 2025 / 2025. Annual source values, not live counts; years may differ. Growth is national, not local.
Indonesia vs South Korea — side by side
 Indonesia |  South Korea | |
|---|---|---|
| Population | 285,721,2362025 | 51,684,5642025 |
| Growth rate / yr | +0.78%2025 | −0.13%2025 |
| Births per 1,000 | 15.82024 | 4.72024 |
| Deaths per 1,000 | 7.62024 | 7.02024 |
| Children per woman | 2.122024 | 0.752024 |
| Life expectancy | 71.3 yrs2024 | 83.6 yrs2024 |
| Aged 0–14 | 24.2%2025 | 10.2%2025 |
| Aged 65+ | 7.5%2025 | 20.3%2025 |
| Density | 148.6 /km²2023 | 529.8 /km²2023 |
| Area | 1,916,907 km²2023 | 100,450 km²2023 |
| Urban population | 59.4%2025 | 81.2%2025 |
| Net migration / yr | -39,5092025 | +65,7312025 |
| GDP per capita | $5,0602025 | $36,2272025 |
| Country population rank (available records) | #4 | #29 |
| Base / world population (World Bank 2025) | 3.48% | 0.63% |
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). Indonesia: 3.2× from 1960 to 2025; South Korea: 2.1× from 1960 to 2025. Left: absolute population. Right: each series indexed to its own first available year = 100; baseline years may differ.
More comparisons
Region: East Asia & Pacific · rankings
Indonesia: Indonesia vs India, Indonesia vs China, Indonesia vs United States, Indonesia vs Pakistan, Indonesia vs Nigeria, Indonesia vs Brazil, Indonesia vs Bangladesh, Indonesia vs Russia.
South Korea: South Korea vs India, South Korea vs China, South Korea vs United States, South Korea vs Indonesia, South Korea vs Pakistan, South Korea vs Nigeria, South Korea vs Brazil, South Korea vs Bangladesh.
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This page is a structured reference entry. Its sources, geographic definition and reference dates determine what the figures mean; it is not independent reporting about the causes of change. Read the accompanying explanation before comparing different places or vintages.