United States of America vs Mexico: population pyramids in 2021
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 2021, the United States of America has a population of 339.7 million and Mexico 127.2 million; the United States of America is about 2.7 times the size of Mexico.
The share aged 65 and over is 16.3% in the United States of America and 7.5% in Mexico, 8.7 points higher in the United States of America. The median age is 38.3 years in the United States of America and 29.1 years in Mexico.
The total fertility rate is 1.63 in the United States of America and 1.97 in Mexico, both below the replacement level of about 2.1. Life expectancy at birth is 76.4 years in the United States of America and 69.8 years in Mexico.
By 2050, the population of the United States of America is projected to grow by 11.9% and that of Mexico to grow by 16.9% compared with 2021.
GDP per person is $90K in the United States of America (2025) and $14K in Mexico (2025).
Key figures (2021)
| United States of America | Mexico | |
|---|---|---|
| Population | 339.7 million | 127.2 million |
| Aged 0–14 | 18.3% | 25.8% |
| Aged 15–64 | 65.5% | 66.6% |
| Aged 65+ | 16.3% | 7.5% |
| Median age | 38.3 yrs | 29.1 yrs |
| Old-age dependency | 24.8 | 11.3 |
| Total fertility rate | 1.63 | 1.97 |
| Life expectancy | 76.4 yrs | 69.8 yrs |
| Population growth | +0.25% | +0.64% |
| Net migration (per year) | +674,787 | -122,791 |
| 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.