How many American citizens are there?
The most populous country in the world is China, with a population of 1,355,692,576 people. On the second position we find India, with 1,236,344,631. On the third position we find the United States of America with a population of 318892103 people. Indonesia, Brazil, Pakistan, Nigeria, Bangladesh, Russia and Japan are also part of the top with the most populous countries in the world. When it comes to the most populous states in America, we find California on the first place with a population of 38,332,521 people.