United States vs Mexico: Population Comparison 2025
Compare USA and Mexico population structures. Analyze demographic trends, migration patterns, age distributions, and economic implications for North America's largest partners.
United States
Mexico
Population Pyramids Comparison
Total Population
United States
347.3M
Mexico
131.9M
Youth (0-14)
United States
17.1%
Mexico
24.1%
Elderly (65+)
United States
18.4%
Mexico
8.5%
Demographic Analysis: United States vs Mexico
In 2025, United States has a population of 347M, while Mexico has 132M. This represents a difference of 215M, with United States having 2.6 times the population of the other. United States ranks #3 globally by population size, while Mexico ranks #11.
The median age reveals significant demographic differences: United States has a median age of 39.5 years, compared to 30.6 years in Mexico. This 8.9-year difference indicates that United States has a significantly older population, with important implications for workforce dynamics, healthcare needs, and economic development. The dependency ratio in United States is 55.0%, while in Mexico it is 48.4%, showing the relative burden of non-working age populations on the workforce.
Gender balance differs between the two countries: United States has a sex ratio of 100.99 males per female, while Mexico has 94.14. United States shows a higher proportion of males, which can affect marriage markets, labor force composition, and social dynamics. These ratios reflect various factors including sex-selective practices, differential mortality rates, and migration patterns.
Comprehensive Demographic Comparison 2025
| Indicator | United States | Mexico | Difference / Ratio |
|---|---|---|---|
| Population Metrics | |||
| Total Population (2025) | 347M | 132M | 2.6x larger |
| World Population Ranking | #3 | #11 | 8 places apart |
| Population Growth Rate (5-year) | +0.46% | +0.80% | 0.34pp difference |
| Projected Growth (2025-2050) | 0.00% | 0.00% | 0.00pp difference |
| Age Structure | |||
| Median Age | 39.5 years | 30.6 years | 8.9 years older |
| Youth (0-14) Population | 17.1% | 24.1% | 7.0pp difference |
| Working Age (15-64) Population | 64.5% | 67.4% | 2.9pp difference |
| Elderly (65+) Population | 18.4% | 8.5% | 9.9pp difference |
| Youth Bulge (15-29) | 19.7% | 24.9% | 5.2pp difference |
| Prime Workforce (25-54) | 39.1% | 41.6% | 2.5pp difference |
| Demographic Indicators | |||
| Total Dependency Ratio | 55.0% | 48.4% | 6.6pp difference |
| Child Dependency Ratio | 26.5% | 35.8% | 9.2pp difference |
| Old-Age Dependency Ratio | 28.5% | 12.6% | 15.9pp difference |
| Sex Ratio (males per 100 females) | 101.0 | 94.1 | 6.9 difference |
| Total Fertility Rate | 1.60 children/woman | 1.88 children/woman | 0.28 difference |
| Estimated Birth Rate | 10.7 per 1,000 | 15.3 per 1,000 | 4.6 difference |
| Aging Index (65+/0-14) | 107.5% | 35.4% | 72.2pp difference |
| Population Pyramid Type | constrictive | stationary | Different types |
📊 Understanding the Population Difference Chart
This visualization shows where and by how much the populations differ between United States and Mexico for each age group, split by gender:
Left Side (Males)
Blue = United States has more males
Green = Mexico has more males
Right Side (Females)
Pink = United States has more females
Orange = Mexico has more females
💡 How to Read: Each age group shows up to 2 bars - one on the left (male difference) and one on the right (female difference). The bar's color tells you which country has more people, and the bar's length shows by how much. For example, if you see a green bar on the left, it means Mexico has more males in that age group.
Notable Differences (>20% variance):
Population Difference
215.3M
United States larger
Growth Since 1950
United States
+125.2%
Mexico
+378.3%
Population Ratio
1 : 0.38
United States : Mexico
| Metric | United States | Mexico | Difference |
|---|---|---|---|
| Total Population | 347.3M | 131.9M | +163.2% |
| Median Age | 39.5 years | 30.6 years | +8.9 |
| Youth Population (0-14) | 59.4M 17.1% | 31.8M 24.1% | +86.8% |
| Working Age (15-64) | 224.0M 64.5% | 88.9M 67.4% | +152.0% |
| Elderly Population (65+) | 63.9M 18.4% | 11.2M 8.5% | +467.9% |
| Total Dependency Ratio | 55.0 per 100 | 48.4 per 100 | +6.6 |
| Youth Dependency Ratio | 26.5 per 100 | 35.8 per 100 | -9.2 |
| Old-Age Dependency Ratio | 28.5 per 100 | 12.6 per 100 | +15.9 |
| Sex Ratio | 101.0 M/100F | 94.1 M/100F | +6.9 |
| Population Structure Type | Constrictive | Stationary | Different |
Total Population
United States
347.3M
Mexico
131.9M
Median Age
United States
39.5 years
Mexico
30.6 years
Youth Population (0-14)
United States
59.4M
17.1%
Mexico
31.8M
24.1%
Working Age (15-64)
United States
224.0M
64.5%
Mexico
88.9M
67.4%
Elderly Population (65+)
United States
63.9M
18.4%
Mexico
11.2M
8.5%
Total Dependency Ratio
United States
55.0 per 100
Mexico
48.4 per 100
Youth Dependency Ratio
United States
26.5 per 100
Mexico
35.8 per 100
Old-Age Dependency Ratio
United States
28.5 per 100
Mexico
12.6 per 100
Sex Ratio
United States
101.0 M/100F
Mexico
94.1 M/100F
Note: Dependency ratios represent the number of dependents (youth + elderly) per 100 working-age individuals. Higher ratios indicate greater economic burden on the working population.
Note: The replacement fertility rate of 2.1 is the level at which a population exactly replaces itself from one generation to the next.Both countries are experiencing demographic transitions as they develop economically. Countries below 2.1 face potential population decline without immigration, while those above 2.1 continue growing naturally.
Historic Milestone: 2023
Mexico became the world's most populous country, ending United States's centuries-long reign