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Room of Countries and Flags · UN member 114
What is Mongolia like?
日本語
In short
Mongolia is a country in Eastern Asia, Asia. In 2025 it has about 3.5 million people (UN estimate), the 130th most people of the 193 UN member states.
UN member since 1961Population: 130th
Mongoliaモンゴル- Region
- Eastern Asia, Asia
- Population
- about 3.5 million (130th)
- Area
- 1,564,116 km² (17th)
- UN member since
- October 27, 1961
Ranks are among the 193 UN member states, from most people and from largest area.
Mongolia in numbers
In 2025 the population is about 3.5 million, the 130th most people of the 193 UN member states. That is about 1/35 of Japan’s (about 123 million).
The area is 1,564,116 km², the 17th largest of the 193. That is about 4.1 times Japan’s area.
If we work out the number of people per square kilometer (population density), it is about 2.2.
Joining the United Nations
Mongolia joined the United Nations on October 27, 1961.
That was 5 years after Japan joined in 1956.
Countries that joined on the same day: Mauritania.
Think about it
- Q1Compare Mongolia’s population rank and area rank. What do you notice?
- Q2Find Mongolia on a map or globe. Which countries are around it?
- Q3Choose one thing you want to know more about Mongolia, and look it up.
There is no single right answer. Talking it over with someone at home is a good way to learn.
Did you know? — There are 5 UN member states in Eastern Asia. The one with the most people is China.