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 1.44 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 1.44. 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 47.8 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 Portugal'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 Portugal's.

How does population affect GDP for Portugal and Brazil?

Population directly impacts GDP through workforce size and consumption. Portugal 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 Portugal's by 2075 due to demographic advantages. However, Brazil must improve productivity (currently about half of Portugal'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 1.44, well below what's needed for population stability.

Which country has more elderly people?

Portugal has significantly more elderly people both in absolute numbers and percentage. With a median age of 47.8 years, Portugal is aging rapidly - about 13% of its population is over 65, compared to just 7% in Brazil. By 2050, over one-third of Portugal'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 Portugal vs Brazil?

Brazil is significantly more densely populated than Portugal. With 212.8 million people in 3.3 million km², Brazil has about 448 people per km². Portugal, despite having 10.4 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 Portugal, 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 Portugal and Brazil?

Both countries have more males than females, but for different reasons. Portugal'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.

Portugal vs Brazil: Population Comparison 2025

Portuguese world demographics. Brazil's scale dwarfs former colonizer.

Portugal

2025

Total Population

Brazil

Total Population

Brazil leads by 202.4M people

Gap is 1943.95% of Portugal's population

Fertility Rate

1.44vs1.62

Brazil +0.18

Median Age

47.8vs35.8

Brazil younger

Density /km²

1vs65

Brazil 65.0x denser

Working Age %

62.3%vs69.1%

Ages 15-64

Portugal: Stable Population

Brazil: Growing Population

Replacement Level: 2.1

Population Pyramids Comparison

Total Population

Portugal

10.4M

Brazil

212.8M

Youth (0-14)

Portugal

12.7%

Brazil

19.4%

Elderly (65+)

Portugal

24.9%

Brazil

11.5%

Demographic Analysis: Portugal vs Brazil

In 2025, Portugal has a population of 10M, while Brazil has 213M. This represents a difference of 202M, with Brazil having 20.4 times the population of the other. Portugal ranks #92 globally by population size, while Brazil ranks #7.

The median age reveals significant demographic differences: Portugal has a median age of 47.8 years, compared to 35.8 years in Brazil. This 12.0-year difference indicates that Portugal has a significantly older population, with important implications for workforce dynamics, healthcare needs, and economic development. The dependency ratio in Portugal is 60.4%, 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: Portugal has a sex ratio of 90.93 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	Portugal	Brazil	Difference / Ratio
Population Metrics
Total Population (2025)	10M	213M	20.4x smaller
World Population Ranking	#92	#7	85 places apart
Population Growth Rate (5-year)	+0.08%	+0.39%	0.32pp difference
Projected Growth (2025-2050)	0.00%	0.00%	0.00pp difference
Age Structure
Median Age	47.8 years	35.8 years	12.0 years older
Youth (0-14) Population	12.7%	19.4%	6.7pp difference
Working Age (15-64) Population	62.3%	69.1%	6.8pp difference
Elderly (65+) Population	24.9%	11.5%	13.5pp difference
Youth Bulge (15-29)	15.8%	21.8%	6.1pp difference
Prime Workforce (25-54)	37.8%	44.2%	6.4pp difference
Demographic Indicators
Total Dependency Ratio	60.4%	44.6%	15.8pp difference
Child Dependency Ratio	20.4%	28.0%	7.6pp difference
Old-Age Dependency Ratio	40.0%	16.6%	23.4pp difference
Sex Ratio (males per 100 females)	90.9	96.8	5.8 difference
Total Fertility Rate	1.44 children/woman	1.62 children/woman	0.18 difference
Estimated Birth Rate	8.2 per 1,000	12.1 per 1,000	3.9 difference
Aging Index (65+/0-14)	196.2%	59.2%	137.0pp 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 Portugal and Brazil for each age group, split by gender:

Left Side (Males)

Blue = Portugal has more males

Green = Brazil has more males

Right Side (Females)

Pink = Portugal 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 96.7% more people

Men: 6.4M more in Brazil • Women: 6.1M more in Brazil

Portugal: 218K men, 208K women • Brazil: 6.6M men, 6.3M women

Population Ratio

426K

12.9M

Ages 5-9: Brazil has 96.8% more people

Men: 6.9M more in Brazil • Women: 6.6M more in Brazil

Portugal: 226K men, 216K women • Brazil: 7.1M men, 6.9M women

Population Ratio

443K

14.0M

Ages 10-14: Brazil has 96.8% more people

Men: 7.1M more in Brazil • Women: 6.8M more in Brazil

Portugal: 233K men, 222K women • Brazil: 7.3M men, 7.0M women

Population Ratio

455K

14.4M

Ages 15-19: Brazil has 96.5% more people

Men: 7.2M more in Brazil • Women: 7.0M more in Brazil

Portugal: 263K men, 254K women • Brazil: 7.5M men, 7.2M women

Population Ratio

517K

14.7M

Ages 20-24: Brazil has 96.4% more people

Men: 7.6M more in Brazil • Women: 7.4M more in Brazil

Portugal: 288K men, 275K women • Brazil: 7.8M men, 7.6M women

Population Ratio

562K

15.5M

Ages 25-29: Brazil has 96.6% more people

Men: 7.9M more in Brazil • Women: 7.8M more in Brazil

Portugal: 287K men, 276K women • Brazil: 8.2M men, 8.1M women

Population Ratio

563K

16.3M

Ages 30-34: Brazil has 96.5% more people

Men: 7.7M more in Brazil • Women: 7.7M more in Brazil

Portugal: 279K men, 275K women • Brazil: 8.0M men, 8.0M women

Population Ratio

553K

16.0M

Ages 35-39: Brazil has 96.5% more people

Men: 7.9M more in Brazil • Women: 8.0M more in Brazil

Portugal: 284K men, 290K women • Brazil: 8.2M men, 8.3M women

Population Ratio

574K

16.5M

Ages 40-44: Brazil has 95.9% more people

Men: 7.9M more in Brazil • Women: 8.1M more in Brazil

Portugal: 327K men, 347K women • Brazil: 8.2M men, 8.4M women

Population Ratio

674K

16.6M

Ages 45-49: Brazil has 94.9% more people

Men: 7.1M more in Brazil • Women: 7.3M more in Brazil

Portugal: 375K men, 406K women • Brazil: 7.4M men, 7.7M women

Population Ratio

781K

15.2M

Ages 50-54: Brazil has 94.1% more people

Men: 6.1M more in Brazil • Women: 6.5M more in Brazil

Portugal: 377K men, 414K women • Brazil: 6.5M men, 6.9M women

Population Ratio

791K

13.4M

Ages 55-59: Brazil has 93.8% more people

Men: 5.4M more in Brazil • Women: 5.8M more in Brazil

Portugal: 350K men, 393K women • Brazil: 5.8M men, 6.2M women

Population Ratio

742K

12.0M

Ages 60-64: Brazil has 93.3% more people

Men: 4.8M more in Brazil • Women: 5.4M more in Brazil

Portugal: 339K men, 393K women • Brazil: 5.2M men, 5.8M women

Population Ratio

732K

10.9M

Ages 65-69: Brazil has 92.3% more people

Men: 3.8M more in Brazil • Women: 4.4M more in Brazil

Portugal: 313K men, 370K women • Brazil: 4.1M men, 4.8M women

Population Ratio

683K

8.9M

Ages 70-74: Brazil has 90.7% more people

Men: 2.7M more in Brazil • Women: 3.4M more in Brazil

Portugal: 280K men, 340K women • Brazil: 3.0M men, 3.7M women

Population Ratio

620K

6.7M

Ages 75-79: Brazil has 88.0% more people

Men: 1.7M more in Brazil • Women: 2.2M more in Brazil

Portugal: 233K men, 299K women • Brazil: 1.9M men, 2.5M women

Population Ratio

532K

4.4M

Ages 80-84: Brazil has 85.4% more people

Men: 908K more in Brazil • Women: 1.3M more in Brazil

Portugal: 155K men, 222K women • Brazil: 1.1M men, 1.5M women

Population Ratio

377K

2.6M

Ages 85-89: Brazil has 80.8% more people

Men: 390K more in Brazil • Women: 628K more in Brazil

Portugal: 88K men, 154K women • Brazil: 478K men, 781K women

Population Ratio

242K

1.3M

Ages 90-94: Brazil has 74.2% more people

Men: 113K more in Brazil • Women: 206K more in Brazil

Portugal: 35K men, 76K women • Brazil: 148K men, 283K women

Population Ratio

111K

430K

Ages 95-99: Brazil has 68.6% more people

Men: 23K more in Brazil • Women: 38K more in Brazil

Portugal: 7K men, 21K women • Brazil: 30K men, 59K women

Population Ratio

28K

89K

Ages 100+: Brazil has 60.6% more people

Men: 2K more in Brazil • Women: 3K more in Brazil

Portugal: 669 men, 3K women • Brazil: 3K men, 6K women

Population Ratio

195020252025

Population Difference

-202.4M

Brazil larger

Growth Since 1950

Portugal

+23.7%

Brazil

+298.5%

Population Ratio

1 : 20.44

Portugal : Brazil

Metric	Portugal	Brazil	Difference
Total Population	10.4M	212.8M	-95.1%
Median Age	47.8 years	35.8 years	+12.0
Youth Population (0-14)	1.3M 12.7%	41.3M 19.4%	-96.8%
Working Age (15-64)	6.5M 62.3%	147.1M 69.1%	-95.6%
Elderly Population (65+)	2.6M 24.9%	24.4M 11.5%	-89.4%
Total Dependency Ratio	60.4 per 100	44.6 per 100	+15.8
Youth Dependency Ratio	20.4 per 100	28.0 per 100	-7.6
Old-Age Dependency Ratio	40.0 per 100	16.6 per 100	+23.4
Sex Ratio	90.9 M/100F	96.8 M/100F	-5.8
Population Structure Type	Constrictive	Stationary	Different

Total Population

Portugal

10.4M

Brazil

212.8M

Difference: -95.1%

Median Age

Portugal

47.8 years

Brazil

35.8 years

Difference: +12.0

Youth Population (0-14)

Portugal

1.3M

12.7%

Brazil

41.3M

19.4%

Difference: -96.8%

Working Age (15-64)

Portugal

6.5M

62.3%

Brazil

147.1M

69.1%

Difference: -95.6%

Elderly Population (65+)

Portugal

2.6M

24.9%

Brazil

24.4M

11.5%

Difference: -89.4%

Total Dependency Ratio

Portugal

60.4 per 100

Brazil

44.6 per 100

Difference: +15.8

Youth Dependency Ratio

Portugal

20.4 per 100

Brazil

28.0 per 100

Difference: -7.6

Old-Age Dependency Ratio

Portugal

40.0 per 100

Brazil

16.6 per 100

Difference: +23.4

Sex Ratio

Portugal

90.9 M/100F

Brazil

96.8 M/100F

Difference: -5.8

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

0.18

births per woman

Below Replacement Level

Both

Population decline risk

2030 Projection Gap

0.13

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 Portugal's centuries-long reign

Portugal: 75-Year Journey

1950 Population:8M

2025 Population:10M

Total Growth:+2M (23.7%)

Peak Year:Still growing

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

Portugal: 0.35%/yr

Brazil: 2.84%/yr

1975-2000

Portugal: 0.45%/yr

Brazil: 1.94%/yr

2000-2025

Portugal: 0.05%/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 10.4 million, a gap of 202.4 million people.