Bulgaria is a country in Eastern Europe, Europe. In 2025 it has about 6.7 million people (UN estimate), the 108th most people of the 193 UN member states.
UN member since 1955Population: 108th
Bulgariaブルガリア
Region
Eastern Europe, Europe
Population
about 6.7 million (108th)
Area
110,372 km² (101st)
UN member since
December 14, 1955
Ranks are among the 193 UN member states, from most people and from largest area.
Bulgaria in numbers
In 2025 the population is about 6.7 million, the 108th most people of the 193 UN member states. That is about 1/18 of Japan’s (about 123 million).
The area is 110,372 km², the 101st largest of the 193. That is about 1/3 of Japan’s area.
If we work out the number of people per square kilometer (population density), it is about 61.
Joining the United Nations
Bulgaria joined the United Nations on December 14, 1955.
It was a member before Japan joined in 1956.
15 other countries joined on the same day.
Think about it
Q1Compare Bulgaria’s population rank and area rank. What do you notice?
Q2Find Bulgaria on a map or globe. Which countries are around it?
Q3Choose one thing you want to know more about Bulgaria, 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 10 UN member states in Eastern Europe. The one with the most people is Russian Federation.