Brazil vs Argentina: population pyramids in 1978
BrazilArgentina
Each bar is the share of the total population at that single year of age (men left, women right), so countries of different sizes can be compared.
Brazil and Argentina compared
In 1978, Brazil has a population of 114.2 million and Argentina 26.9 million; Brazil is about 4.2 times the size of Argentina.
The share aged 65 and over is 3.4% in Brazil and 7.5% in Argentina, 4.1 points higher in Argentina. The median age is 19.7 years in Brazil and 27.0 years in Argentina.
The total fertility rate is 4.20 in Brazil and 3.36 in Argentina, both above the replacement level of about 2.1. Life expectancy at birth is 60.9 years in Brazil and 68.0 years in Argentina.
By 2050, the population of Brazil is projected to grow by 90.5% and that of Argentina to grow by 79.4% compared with 1978.
GDP per person is $11K in Brazil (2025) and $15K in Argentina (2025).
Key figures (1978)
| Brazil | Argentina | |
|---|---|---|
| Population | 114.2 million | 26.9 million |
| Aged 0–14 | 39.4% | 30.0% |
| Aged 15–64 | 57.3% | 62.5% |
| Aged 65+ | 3.4% | 7.5% |
| Median age | 19.7 yrs | 27.0 yrs |
| Old-age dependency | 5.9 | 12.0 |
| Total fertility rate | 4.20 | 3.36 |
| Life expectancy | 60.9 yrs | 68.0 yrs |
| Population growth | +2.38% | +1.60% |
| Net migration (per year) | -23,416 | -14,665 |
| GDP | $2.28T (2025) | $683B (2025) |
| GDP per person | $11K (2025) | $15K (2025) |
| Unemployment | 6% (2025) | 7.2% (2025) |
Economic figures are the latest year published for each country.