United Republic of Tanzania is a country in Eastern Africa, Africa. In 2025 it has about 70.5 million people (UN estimate), the 21st most people of the 193 UN member states.
UN member since 1961Population: 21st
United Republic of Tanzaniaタンザニア
Region
Eastern Africa, Africa
Population
about 70.5 million (21st)
Area
947,303 km² (29th)
UN member since
December 14, 1961
Ranks are among the 193 UN member states, from most people and from largest area.
United Republic of Tanzania in numbers
In 2025 the population is about 70.5 million, the 21st most people of the 193 UN member states. That is about 1/1 of Japan’s (about 123 million).
The area is 947,303 km², the 29th largest of the 193. That is about 2.5 times Japan’s area.
If we work out the number of people per square kilometer (population density), it is about 74.
Joining the United Nations
United Republic of Tanzania joined the United Nations on December 14, 1961.
That was 5 years after Japan joined in 1956.
Think about it
Q1Compare United Republic of Tanzania’s population rank and area rank. What do you notice?
Q2Find United Republic of Tanzania on a map or globe. Which countries are around it?
Q3Choose one thing you want to know more about United Republic of Tanzania, 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 18 UN member states in Eastern Africa. The one with the most people is Ethiopia.