Ireland is a country in Northern Europe, Europe. In 2025 it has about 5.3 million people (UN estimate), the 122nd most people of the 193 UN member states.
UN member since 1955Population: 122nd
Irelandアイルランド
Region
Northern Europe, Europe
Population
about 5.3 million (122nd)
Area
69,825 km² (116th)
UN member since
December 14, 1955
Ranks are among the 193 UN member states, from most people and from largest area.
Ireland in numbers
In 2025 the population is about 5.3 million, the 122nd most people of the 193 UN member states. That is about 1/23 of Japan’s (about 123 million).
The area is 69,825 km², the 116th largest of the 193. That is about 1/5 of Japan’s area.
If we work out the number of people per square kilometer (population density), it is about 76.
Joining the United Nations
Ireland 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 Ireland’s population rank and area rank. What do you notice?
Q2Find Ireland on a map or globe. Which countries are around it?
Q3Choose one thing you want to know more about Ireland, 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 Northern Europe. The one with the most people is United Kingdom of Great Britain and Northern Ireland.