Population Pyramids of the World from 1950 to 2100

Tonga Population Pyramid 1970

Tonga
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1970
Population: 84,401

Year

-5 -1   1970  +1 +5

Country

A B C D E F G H I J K L M N O P Q R S T U V W Y Z
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Summary

Tonga in 1970

In 1970, Tonga had a total population of 84,401 people. A decade earlier, in 1960, the population was 66,170; it has grown by 27.6% since.

With a median age of 16.8 years, Tonga had a youth dependency ratio of 91.9 and an old-age dependency ratio of 6.3 per 100 people of working age. The broad-based, expansive shape of the pyramid points to high fertility and strong population growth.

Ranks #190 of 201 by population Ranks #167 of 201 by median age Ranks #94 of 201 by growth

Share of the population by age group, 1950–2100

Data source: United Nations World Population Prospects, 2024 revision (medium variant) — last updated July 2024.

Key indicators for Tonga
Population
84,401
Median age
16.8
0-14 %
46.4%
65+ %
3.2%
Child dependency
91.9
Old-age dependency
6.3
Region
OCEANIA
Pyramid shape
Expansive
Population 2050
105,195
Population 2100
117,871
What is driving the change
Births per woman
Total fertility rate, 1960–2023
1234567
1960Replacement level (2.1)2023 · 3.13

The fertility rate of Tonga was 3.13 births per woman in 2023, above the 2.1 needed to replace each generation.

Source: World Bank World Development Indicators, latest available year.

Life expectancy at birth
Years, 1960–2023
Total Women Men
50607080
19602023 · 72.9

Life expectancy at birth was 72.9 years in 2023: 76.4 for women and 69.4 for men.

Source: World Bank World Development Indicators, latest available year.

People supported per 100 workers
Dependency ratios, 1950–2100
Children Older adults
255075100
19502100
Migration to and from Tonga
Where immigrants come from (2024)

998 immigrants live in Tonga, 1.0% of the population.

Fiji450
Samoa208
India169
China109
Japan62
Where emigrants live (2024)

51,894 people born in Tonga live in other countries.

New Zealand29,981
Australia19,464
Fiji1,389
Guinea901
Samoa57
Explore
Immigration statistics Origin of migrant stocks map

Source: United Nations International Migrant Stock 2024.

How Tonga compares with its neighbours
Country Population Median age Relative size
Tonga 84,402 16.8
French Polynesia 114,011 17.0
Samoa 140,401 14.6
Frequently asked questions about Tonga's population
How many people lived in Tonga in 1970?
In 1970, Tonga's population was 84,401.
Is the population of Tonga increasing or decreasing?
Tonga's population grew 27.6% over the previous ten years, and is projected to reach 105,195 by 2050.
What is the median age in Tonga?
The median age in Tonga is 16.8 years — half the population is younger, half older.
How many children and older people live in Tonga?
In Tonga, 46.4% of people are under 15 and 3.2% are 65 or older.
What type of population pyramid does Tonga have?
Tonga's pyramid is expansive — broad at the bottom, the signature of high birth rates and a growing population.

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