Argentina vs Brazil
Brazil has 4.6× the population of Argentina: 212,812,405 vs 45,851,378, a gap of 167.0 million. Both are growing at almost the same pace (+0.34% vs +0.38% a year). At these source-year rates the modelled relative population gap is widening. Argentina is the older society: 12.6% aged 65+ against 11.5% in Brazil. Brazil is 1.5× as densely populated (25.3 vs 16.6 people per km²). People in Argentina live 1.5 years longer on average (77.5 vs 76.0). GDP per capita is 1.4× higher in Argentina ($14,898 vs $10,713).
Country/territory population bases: World Bank 2025 (Argentina) and 2025 (Brazil); growth years 2025 / 2025. Annual source values, not live counts; years may differ. Growth is national, not local.
Argentina vs Brazil — side by side
 Argentina |  Brazil | |
|---|---|---|
| Population | 45,851,3782025 | 212,812,4052025 |
| Growth rate / yr | +0.34%2025 | +0.38%2025 |
| Births per 1,000 | 11.12024 | 12.12024 |
| Deaths per 1,000 | 7.72024 | 7.12024 |
| Children per woman | 1.502024 | 1.612024 |
| Life expectancy | 77.5 yrs2024 | 76.0 yrs2024 |
| Aged 0–14 | 21.0%2025 | 19.4%2025 |
| Aged 65+ | 12.6%2025 | 11.5%2025 |
| Density | 16.6 /km²2023 | 25.3 /km²2023 |
| Area | 2,780,400 km²2023 | 8,510,420 km²2023 |
| Urban population | 92.4%2025 | 88.2%2025 |
| Net migration / yr | +2,8592025 | -217,2832025 |
| GDP per capita | $14,8982025 | $10,7132025 |
| Country population rank (available records) | #35 | #7 |
| Base / world population (World Bank 2025) | 0.56% | 2.59% |
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). Argentina: 2.2× from 1960 to 2025; Brazil: 2.9× 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: Latin America & Caribbean · rankings
Argentina: Argentina vs Brazil, Argentina vs Mexico, Argentina vs Colombia, Argentina vs Spain, Argentina vs Algeria, Argentina vs Iraq, Argentina vs Afghanistan, Argentina vs Yemen.
Brazil: Brazil vs India, Brazil vs China, Brazil vs United States, Brazil vs Indonesia, Brazil vs Pakistan, Brazil vs Nigeria, Brazil vs Bangladesh, Brazil vs Russia.
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