10 Most Populous Countries in the World (2025 Update)
Introduction
The topic of most populous countries is very important because population affects economy, politics, culture, and environment. Knowing which countries have the biggest populations helps us understand future global trends.
In 2025, India and China are at the top, followed by the United States, Indonesia, and Pakistan. Here is the updated list.
Top 10 Most Populous Countries in 2025
| Rank | Country | Population (2025, est.) |
|---|---|---|
| 1 | India | 1.46 billion |
| 2 | China | 1.41 billion |
| 3 | United States | 347 million |
| 4 | Indonesia | 285 million |
| 5 | Pakistan | 255 million |
| 6 | Nigeria | 237 million |
| 7 | Brazil | 212 million |
| 8 | Bangladesh | 176 million |
| 9 | Russia | 144 million |
| 10 | Mexico | 128 million |
Note: Some lists show Japan instead of Mexico, depending on data sources.
Quick Facts Top 10 Most Populous Countries in the World
- India – now the most populous country, with rapid urban growth.
- China – population still huge, but declining birth rates and aging issues.
- United States – growth mostly from migration.
- Indonesia – the 4th largest population, with a young workforce.
- Pakistan – very high population growth rate.
- Nigeria – Africa’s largest population, mostly young people.
- Brazil – largest in South America.
- Bangladesh – small country but extremely dense.
- Russia – largest land, but shrinking population.
- Mexico – big population in Latin America, fast urbanization.
Conclusion
- India and China together make up over one-third of the world’s people.
- Countries like Pakistan, Nigeria, and Bangladesh are growing fast.
- Developed countries face challenges like aging populations and low birth rates.
Sources
PinterPandai, Worldometers – Most Populous Countries 2025, World Population Review, Wikipedia – Countries by Population
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