Will China's population drop below 1 billion?

Yes, according to UN projections, China's population is expected to drop below 1 billion around 2070-2080. China's population peaked in 2021 at approximately 1.41 billion and has been declining since. With a fertility rate of just 1.88 births per woman (far below the replacement level of 2.1), the decline is expected to accelerate. By 2100, China's population could fall to around 770 million.

Why is India's population growing faster than China's?

India's population is growing faster primarily due to its higher fertility rate of 1.62 births per woman compared to China's 1.88. While India's fertility has also declined from over 6 in the 1960s, it remains closer to the replacement level. Additionally, India has a younger population structure with a median age of 35.8 years versus 30.6 years in China, meaning more people are in their reproductive years.

What is the demographic dividend and which country benefits more?

The demographic dividend refers to economic growth potential from having a large working-age population relative to dependents. Brazil is currently in a better position to benefit, with 65% of its population under 35 years old. Brazil's demographic window will remain open for about 20 more years, while Mexico's has already begun closing. However, Brazil needs to create jobs and improve education to fully capitalize on this advantage, as its workforce participation rate (especially for women at 25-35%) is much lower than Mexico's.

How does population affect GDP for Mexico and Brazil?

Population directly impacts GDP through workforce size and consumption. Mexico currently has a higher GDP per capita, but its aging and shrinking workforce poses challenges. Brazil's growing, younger population provides more workers and consumers, potentially driving economic growth. Economists project that Brazil's economy could surpass Mexico's by 2075 due to demographic advantages. However, Brazil must improve productivity (currently about half of Mexico's) to fully benefit from its population advantage.

What was the impact of China's one-child policy?

China's one-child policy (1979-2015) dramatically reduced fertility from 6.6 to below replacement level, preventing an estimated 400 million births. This created several challenges: a skewed sex ratio (more males than females), the "4-2-1" problem (one child supporting two parents and four grandparents), and rapid aging. The policy contributed to China's current fertility rate of just 1.88, well below what's needed for population stability.

Which country has more elderly people?

Mexico has significantly more elderly people both in absolute numbers and percentage. With a median age of 30.6 years, Mexico is aging rapidly - about 13% of its population is over 65, compared to just 7% in Brazil. By 2050, over one-third of Mexico's population will be 65+, creating massive pension and healthcare challenges. Brazil, with a median age of 35.8, has more time to prepare for population aging.

What are the population densities of Mexico vs Brazil?

Brazil is significantly more densely populated than Mexico. With 212.8 million people in 3.3 million km², Brazil has about 448 people per km². Mexico, despite having 131.9 million people, has 9.6 million km² of land, resulting in just 147 people per km². This makes Brazil over 3 times as densely populated as Mexico, creating different challenges for infrastructure and resource management.

When will India's population peak?

India's population is projected to peak around 2061 at approximately 1.7 billion people, after which it will begin a gradual decline. This gives India about 36 more years of population growth. The peak will come as fertility rates continue to fall (currently 1.62 and declining) and the population ages. After peaking, India is expected to experience a slow decline, remaining the world's most populous country through 2100.

How do male-female ratios compare between Mexico and Brazil?

Both countries have more males than females, but for different reasons. Mexico's sex ratio imbalance (about 105 males per 100 females) was exacerbated by the one-child policy and cultural preference for sons, leading to sex-selective practices. Brazil also has a skewed ratio (about 108 males per 100 females), similarly influenced by cultural preferences. Both countries face challenges from this imbalance, including millions of men unable to find marriage partners, potentially affecting social stability.

Mexico vs Brazil: Population Comparison 2025

Latin America's demographic leaders. Similar fertility declines, different age structures.

Mexico

2025

Total Population

Brazil

Total Population

Brazil leads by 80.9M people

Gap is 61.29% of Mexico's population

Fertility Rate

1.88vs1.62

Mexico +0.26

Median Age

30.6vs35.8

Mexico younger

Density /km²

14vs65

Brazil 4.6x denser

Working Age %

67.4%vs69.1%

Ages 15-64

Mexico: Growing Population

Brazil: Growing Population

Replacement Level: 2.1

Population Pyramids Comparison

Total Population

Mexico

131.9M

Brazil

212.8M

Youth (0-14)

Mexico

24.1%

Brazil

19.4%

Elderly (65+)

Mexico

8.5%

Brazil

11.5%

Demographic Analysis: Mexico vs Brazil

In 2025, Mexico has a population of 132M, while Brazil has 213M. This represents a difference of 81M, with Brazil having 1.6 times the population of the other. Mexico ranks #11 globally by population size, while Brazil ranks #7.

The median age reveals significant demographic differences: Mexico has a median age of 30.6 years, compared to 35.8 years in Brazil. This 5.2-year difference indicates that Brazil has a significantly older population, with important implications for workforce dynamics, healthcare needs, and economic development. The dependency ratio in Mexico is 48.4%, while in Brazil it is 44.6%, showing the relative burden of non-working age populations on the workforce.

Gender balance differs between the two countries: Mexico has a sex ratio of 94.14 males per female, while Brazil has 96.77. Brazil 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	Mexico	Brazil	Difference / Ratio
Population Metrics
Total Population (2025)	132M	213M	1.6x smaller
World Population Ranking	#11	#7	4 places apart
Population Growth Rate (5-year)	+0.80%	+0.39%	0.40pp difference
Projected Growth (2025-2050)	0.00%	0.00%	0.00pp difference
Age Structure
Median Age	30.6 years	35.8 years	5.2 years younger
Youth (0-14) Population	24.1%	19.4%	4.7pp difference
Working Age (15-64) Population	67.4%	69.1%	1.7pp difference
Elderly (65+) Population	8.5%	11.5%	3.0pp difference
Youth Bulge (15-29)	24.9%	21.8%	3.1pp difference
Prime Workforce (25-54)	41.6%	44.2%	2.6pp difference
Demographic Indicators
Total Dependency Ratio	48.4%	44.6%	3.7pp difference
Child Dependency Ratio	35.8%	28.0%	7.7pp difference
Old-Age Dependency Ratio	12.6%	16.6%	4.0pp difference
Sex Ratio (males per 100 females)	94.1	96.8	2.6 difference
Total Fertility Rate	1.88 children/woman	1.62 children/woman	0.26 difference
Estimated Birth Rate	15.3 per 1,000	12.1 per 1,000	3.2 difference
Aging Index (65+/0-14)	35.4%	59.2%	23.8pp difference
Population Pyramid Type	stationary	stationary	Same type

📊 Understanding the Population Difference Chart

This visualization shows where and by how much the populations differ between Mexico and Brazil for each age group, split by gender:

Left Side (Males)

Blue = Mexico has more males

Green = Brazil has more males

Right Side (Females)

Pink = Mexico has more females

Orange = Brazil 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 Brazil has more males in that age group.

Notable Differences (>20% variance):

Ages 0-4: Brazil has 21.4% more people

Men: 1.4M more in Brazil • Women: 1.3M more in Brazil

Mexico: 5.2M men, 5.0M women • Brazil: 6.6M men, 6.3M women

Population Ratio

10.1M

12.9M

Ages 5-9: Brazil has 25.2% more people

Men: 1.8M more in Brazil • Women: 1.7M more in Brazil

Mexico: 5.3M men, 5.1M women • Brazil: 7.1M men, 6.9M women

Population Ratio

10.5M

14.0M

Ages 10-14: Brazil has 22.2% more people

Men: 1.6M more in Brazil • Women: 1.5M more in Brazil

Mexico: 5.7M men, 5.5M women • Brazil: 7.3M men, 7.0M women

Population Ratio

11.2M

14.4M

Ages 15-19: Brazil has 24.1% more people

Men: 1.8M more in Brazil • Women: 1.7M more in Brazil

Mexico: 5.7M men, 5.5M women • Brazil: 7.5M men, 7.2M women

Population Ratio

11.1M

14.7M

Ages 20-24: Brazil has 28.2% more people

Men: 2.2M more in Brazil • Women: 2.1M more in Brazil

Mexico: 5.6M men, 5.5M women • Brazil: 7.8M men, 7.6M women

Population Ratio

11.1M

15.5M

Ages 25-29: Brazil has 34.9% more people

Men: 2.9M more in Brazil • Women: 2.8M more in Brazil

Mexico: 5.3M men, 5.3M women • Brazil: 8.2M men, 8.1M women

Population Ratio

10.6M

16.3M

Ages 30-34: Brazil has 35.1% more people

Men: 2.9M more in Brazil • Women: 2.7M more in Brazil

Mexico: 5.1M men, 5.3M women • Brazil: 8.0M men, 8.0M women

Population Ratio

10.4M

16.0M

Ages 35-39: Brazil has 41.5% more people

Men: 3.6M more in Brazil • Women: 3.3M more in Brazil

Mexico: 4.6M men, 5.0M women • Brazil: 8.2M men, 8.3M women

Population Ratio

9.7M

16.5M

Ages 40-44: Brazil has 47.3% more people

Men: 4.1M more in Brazil • Women: 3.7M more in Brazil

Mexico: 4.1M men, 4.7M women • Brazil: 8.2M men, 8.4M women

Population Ratio

8.8M

16.6M

Ages 45-49: Brazil has 47.1% more people

Men: 3.8M more in Brazil • Women: 3.4M more in Brazil

Mexico: 3.7M men, 4.4M women • Brazil: 7.4M men, 7.7M women

Population Ratio

8.0M

15.2M

Ages 50-54: Brazil has 44.4% more people

Men: 3.1M more in Brazil • Women: 2.8M more in Brazil

Mexico: 3.4M men, 4.0M women • Brazil: 6.5M men, 6.9M women

Population Ratio

7.4M

13.4M

Ages 55-59: Brazil has 46.3% more people

Men: 2.8M more in Brazil • Women: 2.7M more in Brazil

Mexico: 3.0M men, 3.5M women • Brazil: 5.8M men, 6.2M women

Population Ratio

6.4M

12.0M

Ages 60-64: Brazil has 51.4% more people

Men: 2.8M more in Brazil • Women: 2.9M more in Brazil

Mexico: 2.4M men, 2.9M women • Brazil: 5.2M men, 5.8M women

Population Ratio

5.3M

10.9M

Ages 65-69: Brazil has 53.9% more people

Men: 2.3M more in Brazil • Women: 2.5M more in Brazil

Mexico: 1.9M men, 2.3M women • Brazil: 4.1M men, 4.8M women

Population Ratio

4.1M

8.9M

Ages 70-74: Brazil has 55.6% more people

Men: 1.7M more in Brazil • Women: 2.1M more in Brazil

Mexico: 1.3M men, 1.6M women • Brazil: 3.0M men, 3.7M women

Population Ratio

3.0M

6.7M

Ages 75-79: Brazil has 54.5% more people

Men: 1.0M more in Brazil • Women: 1.4M more in Brazil

Mexico: 885K men, 1.1M women • Brazil: 1.9M men, 2.5M women

Population Ratio

2.0M

4.4M

Ages 80-84: Brazil has 52.2% more people

Men: 529K more in Brazil • Women: 819K more in Brazil

Mexico: 534K men, 699K women • Brazil: 1.1M men, 1.5M women

Population Ratio

1.2M

2.6M

Ages 85-89: Brazil has 50.2% more people

Men: 205K more in Brazil • Women: 427K more in Brazil

Mexico: 273K men, 354K women • Brazil: 478K men, 781K women

Population Ratio

627K

1.3M

Ages 90-94: Brazil has 48.5% more people

Men: 48K more in Brazil • Women: 161K more in Brazil

Mexico: 100K men, 121K women • Brazil: 148K men, 283K women

Population Ratio

221K

430K

Ages 95-99: Brazil has 45.6% more people

Men: 6K more in Brazil • Women: 35K more in Brazil

Mexico: 24K men, 24K women • Brazil: 30K men, 59K women

Population Ratio

48K

89K

Ages 100+: Brazil has 35.0% more people

Men: 270 more in Mexico • Women: 3K more in Brazil

Mexico: 3K men, 2K women • Brazil: 3K men, 6K women

Population Ratio

195020252025

Population Difference

-80.9M

Brazil larger

Growth Since 1950

Mexico

+378.3%

Brazil

+298.5%

Population Ratio

1 : 1.61

Mexico : Brazil

Metric	Mexico	Brazil	Difference
Total Population	131.9M	212.8M	-38.0%
Median Age	30.6 years	35.8 years	-5.2
Youth Population (0-14)	31.8M 24.1%	41.3M 19.4%	-23.0%
Working Age (15-64)	88.9M 67.4%	147.1M 69.1%	-39.6%
Elderly Population (65+)	11.2M 8.5%	24.4M 11.5%	-54.0%
Total Dependency Ratio	48.4 per 100	44.6 per 100	+3.7
Youth Dependency Ratio	35.8 per 100	28.0 per 100	+7.7
Old-Age Dependency Ratio	12.6 per 100	16.6 per 100	-4.0
Sex Ratio	94.1 M/100F	96.8 M/100F	-2.6
Population Structure Type	Stationary	Stationary	Same

Total Population

Mexico

131.9M

Brazil

212.8M

Difference: -38.0%

Median Age

Mexico

30.6 years

Brazil

35.8 years

Difference: -5.2

Youth Population (0-14)

Mexico

31.8M

24.1%

Brazil

41.3M

19.4%

Difference: -23.0%

Working Age (15-64)

Mexico

88.9M

67.4%

Brazil

147.1M

69.1%

Difference: -39.6%

Elderly Population (65+)

Mexico

11.2M

8.5%

Brazil

24.4M

11.5%

Difference: -54.0%

Total Dependency Ratio

Mexico

48.4 per 100

Brazil

44.6 per 100

Difference: +3.7

Youth Dependency Ratio

Mexico

35.8 per 100

Brazil

28.0 per 100

Difference: +7.7

Old-Age Dependency Ratio

Mexico

12.6 per 100

Brazil

16.6 per 100

Difference: -4.0

Sex Ratio

Mexico

94.1 M/100F

Brazil

96.8 M/100F

Difference: -2.6

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.

Current Gap

0.26

births per woman

Below Replacement Level

Both

Population decline risk

2030 Projection Gap

0.26

Both trending below replacement

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

Brazil became the world's most populous country, ending Mexico's centuries-long reign

Mexico: 75-Year Journey

1950 Population:28M

2025 Population:132M

Total Growth:+104M (378.3%)

Peak Year:Still growing (~2055 peak)

Brazil: 75-Year Journey

1950 Population:53M

2025 Population:213M

Total Growth:+159M (298.5%)

Projected Peak:Still growing (~2041 peak)

Growth Rate by Period

1950-1975

Mexico: 3.09%/yr

Brazil: 2.84%/yr

1975-2000

Mexico: 2.08%/yr

Brazil: 1.94%/yr

2000-2025

Mexico: 1.17%/yr

Brazil: 0.81%/yr

Frequently Asked Questions

India officially overtook China as the world's most populous country in April 2023, according to United Nations estimates. This historic shift ended China's long reign as the world's most populous nation, a position it had held for centuries. As of 2025, India has 212.8 million people compared to China's 131.9 million, a gap of 80.9 million people.