WHICH COUNTRY IS LESS POPULATED AND WHICH ONE IS MORE POPULATED THAN THE OTHER COUNTRIES .
The least populated countries are the microstates like Vatican City. Vatican City is the least popualted country with a population of just 451. Other countries with very little population are Tuvalu, Palau, San Marion, Liechtenstein and Monaco.
The three most populated countries are China, India and the United States.
The three most populated countries are China, India and the United States.