Population Pyramids of the World from 1950 to 2100

Tonga Population Pyramid 1978

Tonga
Afghanistan Africa Albania Algeria Angola Antigua and Barbuda Argentina Armenia Aruba Asia Australia Australia/New Zealand Austria Azerbaijan Bahamas Bahrain Bangladesh Barbados Belarus Belgium Belize Benin Bhutan Bolivia (Plurinational State of) Bosnia and Herzegovina Botswana Brazil Brunei Darussalam Bulgaria Burkina Faso Burundi Cabo Verde Cambodia Cameroon Canada Caribbean Central African Republic Central America Central Asia Chad Channel Islands Chile China China, Hong Kong SAR China, Macao SAR Colombia Comoros Congo Costa Rica Croatia Cuba Curaçao Cyprus Czech Republic Côte d'Ivoire Dem. People's Republic of Korea Democratic Republic of the Congo Denmark Djibouti Dominican Republic Eastern Africa Eastern Asia Eastern Europe Ecuador Egypt El Salvador Equatorial Guinea Eritrea Estonia Ethiopia Europe Fiji Finland France French Guiana French Polynesia Gabon Gambia Georgia Germany Ghana Greece Grenada Guadeloupe Guam Guatemala Guinea Guinea-Bissau Guyana Haiti Honduras Hungary Iceland India Indonesia Iran (Islamic Republic of) Iraq Ireland Israel Italy Jamaica Japan Jordan Kazakhstan Kenya Kiribati Kuwait Kyrgyzstan Lao People's Democratic Republic Latin America and the Caribbean Latvia Least developed countries Lebanon Lesotho Less developed regions Less developed regions, excluding China Less developed regions, excluding least developed countries Liberia Libya Lithuania Luxembourg Madagascar Malawi Malaysia Maldives Mali Malta Martinique Mauritania Mauritius Mayotte Melanesia Mexico Micronesia Micronesia (Fed. States of) Middle Africa Mongolia Montenegro More developed regions Morocco Mozambique Myanmar Namibia Nepal Netherlands New Caledonia New Zealand Nicaragua Niger Nigeria Northern Africa Northern America Northern Europe Norway Oceania Oman Other non-specified areas Pakistan Panama Papua New Guinea Paraguay Peru Philippines Poland Polynesia Portugal Puerto Rico Qatar Republic of Korea Republic of Moldova Romania Russian Federation Rwanda Réunion Saint Lucia Saint Vincent and the Grenadines Samoa Sao Tome and Principe Saudi Arabia Senegal Serbia Seychelles Sierra Leone Singapore Slovakia Slovenia Solomon Islands Somalia South Africa South America South Sudan South-Central Asia South-Eastern Asia Southern Africa Southern Asia Southern Europe Spain Sri Lanka State of Palestine Sub-Saharan Africa Sudan Suriname Swaziland Sweden Switzerland Syrian Arab Republic TFYR Macedonia Tajikistan Thailand Timor-Leste Togo Tonga Trinidad and Tobago Tunisia Turkey Turkmenistan Uganda Ukraine United Arab Emirates United Kingdom United Republic of Tanzania United States Virgin Islands United States of America Uruguay Uzbekistan Vanuatu Venezuela (Bolivarian Republic of) Viet Nam Western Africa Western Asia Western Europe Western Sahara World Yemen Zambia Zimbabwe
1978
Population: 97,204

Year

-5 -1   1978  +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 1978

As of 1978, Tonga counted 97,205 inhabitants. Over the previous ten years the population grew by 19.5%, up from 81,352 in 1968.

Half of the population was younger than 17.1 years; 45.3% were children under 15 and 3.3% were 65 or older. The pyramid is expansive: its wide base of young cohorts reflects high fertility and a rapidly growing population.

Ranks #189 of 201 by population Ranks #160 of 201 by median age Ranks #125 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
97,205
Median age
17.1
0-14 %
45.3%
65+ %
3.3%
Child dependency
88.0
Old-age dependency
6.4
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 97,205 17.1
French Polynesia 146,822 18.8
Samoa 161,375 16.0
Frequently asked questions about Tonga's population
How many people lived in Tonga in 1978?
In 1978, Tonga's population was 97,205.
Is Tonga's population growing or shrinking?
Tonga's population grew 19.5% over the previous ten years, and is projected to reach 105,195 by 2050.
How old is the population of Tonga?
The median age in Tonga is 17.1 years — half the population is younger, half older.
What share of Tonga's population is over 65 or under 15?
In Tonga, 45.3% of people are under 15 and 3.3% 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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