China , India, and U.S.A. are the most densely populated
Argentina is itself a country - there can't be countries within Argentina.
The three most densely populated countries in the world are Monaco, Singapore, and Bahrain. These countries have high population densities due to their small land areas and high populations.
China, with approximately 1.4 Billion peopleChina
Nigeria: 156,729,000; Ethiopia: 85,254,000; Egypt: 75,500,662
There are no countries on the Antarctic continent.
The Benelux countries are made up of Belgium, the Netherlands and Luxembourg. These countries are among the most densely populated in Europe.
Netherlands is the most densely populated country in the world
People's Republic of China (1,339,810,000)India (1,188,350,000)United States of America (310,387,000)
India is one of them
India
There is only room for one most populated country in the world.