United States of America vs Mexico: population pyramids in 1978
United States of AmericaMexico
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.
United States of America and Mexico compared
In 1978, the United States of America has a population of 224.3 million and Mexico 63.1 million; the United States of America is about 3.6 times the size of Mexico.
The share aged 65 and over is 10.7% in the United States of America and 2.9% in Mexico, 7.8 points higher in the United States of America. The median age is 29.4 years in the United States of America and 16.3 years in Mexico.
The total fertility rate is 1.80 in the United States of America and 5.20 in Mexico, so only the United States of America is below the replacement level of about 2.1. Life expectancy at birth is 73.4 years in the United States of America and 63.4 years in Mexico.
By 2050, the population of the United States of America is projected to grow by 69.5% and that of Mexico to grow by 135.7% compared with 1978.
GDP per person is $90K in the United States of America (2025) and $14K in Mexico (2025).
Key figures (1978)
| United States of America | Mexico | |
|---|---|---|
| Population | 224.3 million | 63.1 million |
| Aged 0–14 | 23.5% | 46.8% |
| Aged 15–64 | 65.8% | 50.3% |
| Aged 65+ | 10.7% | 2.9% |
| Median age | 29.4 yrs | 16.3 yrs |
| Old-age dependency | 16.2 | 5.7 |
| Total fertility rate | 1.80 | 5.20 |
| Life expectancy | 73.4 yrs | 63.4 yrs |
| Population growth | +0.94% | +2.62% |
| Net migration (per year) | +556,521 | -243,714 |
| GDP | $30.8T (2025) | $1.83T (2025) |
| GDP per person | $90K (2025) | $14K (2025) |
| Unemployment | 4.2% (2025) | 2.7% (2025) |
Economic figures are the latest year published for each country.