Top 10 Most Populated Countries in the World (2025)

Population growth plays a significant role in a country’s economy, development, and global influence. As of 2025, the world’s population has surpassed 8 billion, with certain nations leading in numbers. Below are the top 10 most populated countries in the world, ranked by their estimated population, along with key insights into their demographics, economy, and culture.

10. Mexico 🇲🇽

• Population: 129 million (1.6% of the world’s population)
• Area: 1.96 million km²
• Per Capita Income: $10,000
• Major Cities: Mexico City, Guadalajara
• Weather: Varied, from desert to tropical
• Literacy Rate: 95%
• Major Religions: Christianity (90%), Others (10%)

9. Russia 🇷🇺

• Population: 144 million (1.8% of the world’s population)
• Area: 17.1 million km²
• Per Capita Income: $11,500
• Major Cities: Moscow, Saint Petersburg
• Weather: Cold continental
• Literacy Rate: 99.7%
• Major Religions: Christianity (75%), Islam (10%), Unaffiliated (15%)

8. Bangladesh 🇧🇩

• Population: 170 million (2.1% of the world’s population)
• Area: 147,570 km²
• Per Capita Income: $2,600
• Major Cities: Dhaka, Chittagong
• Weather: Tropical monsoon
• Literacy Rate: 75%
• Major Religions: Islam (90%), Hinduism (9%), Others (1%)

7. Nigeria 🇳🇬

• Population: 220 million (2.8% of the world’s population)
• Area: 923,768 km²
• Per Capita Income: $2,400
• Major Cities: Lagos, Abuja, Kano
• Weather: Tropical, hot and humid
• Literacy Rate: 62%
• Major Religions: Islam (53%), Christianity (45%), Others (2%)

6. Brazil 🇧🇷

• Population: 216 million (2.7% of the world’s population)
• Area: 8.5 million km²
• Per Capita Income: $7,500
• Major Cities: São Paulo, Rio de Janeiro, Brasília
• Weather: Tropical and subtropical climates
• Literacy Rate: 94%
• Major Religions: Christianity (88%), Unaffiliated (8%), Others (4%)

5. Pakistan 🇵🇰

• Population: 240 million (3% of the world’s population)
• Area: 881,913 km²
• Per Capita Income: $1,700
• Major Cities: Karachi, Lahore, Islamabad
• Weather: Mostly arid, with cold winters in the north
• Average Height: Men – 167 cm, Women – 155 cm
• Gender Ratio: 51% male, 49% female
• Age Distribution: Youth (0-14) – 35%, Working Age (15-64) – 60%, Elderly (65+) – 5%
• Literacy Rate: 59%
• National Languages: Urdu, English
• Major Religions: Islam (96.5%), Christianity (1.5%), Hinduism (1%), Others (1%)

4. Indonesia 🇮🇩

• Population: 277 million (3.4% of the world’s population)
• Area: 1.9 million km²
• Per Capita Income: $4,200
• Major Cities: Jakarta, Surabaya, Bandung
• Weather: Tropical, with high humidity and monsoon seasons
• Average Height: Men – 165 cm, Women – 154 cm
• Gender Ratio: 50.5% male, 49.5% female
• Age Distribution: Youth (0-14) – 25%, Working Age (15-64) – 68%, Elderly (65+) – 7%
• Literacy Rate: 95%
• National Language: Indonesian
• Major Religions: Islam (87%), Christianity (10%), Hinduism (1.7%), Buddhism (0.7%)

3. United States 🇺🇸

• Population: 332 million (4.1% of the world’s population)
• Area: 9.8 million km²
• Per Capita Income: $69,000
• Major Cities: New York, Los Angeles, Chicago
• Weather: Varies from arctic in Alaska to tropical in Florida
• Average Height: Men – 176 cm, Women – 163 cm
• Gender Ratio: 49% male, 51% female
• Age Distribution: Youth (0-14) – 18%, Working Age (15-64) – 65%, Elderly (65+) – 17%
• Literacy Rate: 99%
• National Language: English
• Major Religions: Christianity (65%), Judaism (2%), Islam (1%), Buddhism (1%), Unaffiliated (31%)
• Culture & Habits: Individualistic society, diverse cultures, fast-paced lifestyle
• Economic Impact: As the largest economy in the world, the U.S. benefits from high immigration rates, technological advancements, and urbanization.

2. India 🇮🇳

• Population: 1.42 billion (17.8% of the world’s population)
• Area: 3.28 million km²
• Per Capita Income: $2,500
• Major Cities: Mumbai, Delhi, Bangalore
• Weather: Mostly tropical and subtropical, with monsoons
• Average Height: Men – 166 cm, Women – 152 cm
• Gender Ratio: 51% male, 49% female
• Age Distribution: Youth (0-14) – 28%, Working Age (15-64) – 66%, Elderly (65+) – 6%
• Literacy Rate: 77%
• National Languages: Hindi, English (official), and several regional languages
• Major Religions: Hinduism (79.8%), Islam (14.2%), Christianity (2.3%), Sikhism (1.7%), Others (2%)
• Culture & Habits: Diverse languages, festivals, strong family bonds, and traditional cuisine
• Economic Impact: India has surpassed China as the most populous nation, with a growing middle class, expanding technology sector, and a youthful workforce.

1. China 🇨🇳

• Population: 1.41 billion (17.6% of the world’s population)
• Area: 9.6 million km²
• Per Capita Income: $12,500
• Major Cities: Beijing, Shanghai, Guangzhou
• Weather: Diverse, from temperate in the north to tropical in the south
• Average Height: Men – 172 cm, Women – 160 cm
• Gender Ratio: 51.3% male, 48.7% female
• Age Distribution: Youth (0-14) – 17.8%, Working Age (15-64) – 68%, Elderly (65+) – 14.2%
• Literacy Rate: 97%
• National Language: Mandarin Chinese
• Major Religions: Buddhism (18%), Taoism (16%), Islam (2%), Christianity (5%), Unaffiliated (59%)
• Culture & Habits: Rich traditions, tea culture, technological advancements, and collectivist society
• Economic Impact: The world’s second-largest economy, China remains a manufacturing hub and a global trade leader despite declining birth rates.

Conclusion

Understanding global population trends helps predict economic shifts, labor market demands, and resource distribution. Countries with high populations often face challenges in infrastructure, healthcare, and employment but also benefit from large workforces and economic expansion opportunities.