As of my knowledge cutoff in September 2021, the top 10 countries by population are:
- China: With over 1.4 billion people, China is the most populous country in the world.
- India: India is the second most populous country, with a population of over 1.3 billion people.
- United States: The United States ranks third in population, with approximately 331 million people.
- Indonesia: Indonesia has a population of around 276 million people, making it the fourth most populous country.
- Pakistan: Pakistan is the fifth most populous country, with a population of around 225 million people.
- Brazil: Brazil has approximately 213 million people, placing it as the sixth most populous country.
- Nigeria: Nigeria is the seventh most populous country, with a population of around 211 million people.
- Bangladesh: Bangladesh has a population of approximately 166 million people, making it the eighth most populous country.
- Russia: Russia ranks ninth in population, with around 145 million people.
- Mexico: Mexico completes the top 10, with a population of around 129 million people.
Please note that population figures can change over time as new data becomes available. It’s always a good idea to refer to updated sources for the most current population statistics.