Every country except for:
1. China - population: 1.34 billion
2. India - pop.: 1.21 billion
3. United States - pop.: 313.8 million
4. Indonesia - pop.: 248.6 million
5. Brazil - pop.: 193.9 million
6. Pakistan - pop.: 190.3 million
7. Nigeria - pop.: 170.1 million
8. Bangladesh - pop.: 161.1 million
9. Russia - pop.: 142.5 million
10. Japan - pop.: 127.4 million
(2012 numbers)
Like I said, every other country in the world besides those ten should be the answer to your question.
The United States
Netherlands is the most densely populated country in the world
There is only room for one most populated country in the world.
China is the world's most populated country with a population of about 1,336,718,015 (2011 estimate). India is the world's second most population country with a population of about 1,189,172,906 (2011 estimate).
The most sparse countries in the world based on population density are Mongolia, Namibia, Australia, Iceland, and Suriname. These countries have low populations spread over large land areas, resulting in sparse population concentrations.
China, actually, is one of the most populated countries in the world.
China is the most populated country in the world. -2021
India is projected to become the world's most populated country in the next several decades, surpassing China. This projection is based on current population growth trends in both countries.
China, with approximately 1.4 Billion peopleChina
The lowest populated country in the world is Pitcairn Islands with only 50 people living there, Vatican City is next with only 80 people.
The Netherlands are one of the most densely populated countries in the world.
Monaco, Singapore and South Korea are the most densely populated countries in the world. Mongolia, Namibia and Australia are least densely populated
It is very small, but it is one of the most densely populated countries in the world. So it has a large population for its size.