Tonga Population Pyramid (2026)
Tonga has a population of 103,291 in 2026, according to the UN World Population Prospects 2024 (projection for 1 July). That is the 182nd-largest population in the world and less than 0.01% of the global total of 8.30 billion. Children under 15 make up 34.4% of the population and people aged 65 and over 7.0%, with 89.5 males for every 100 females.
Tonga Demographics
Tonga has 103,291 people in 2026, up 22.4% from 84,402 in 1970.
Births outnumber deaths by 1,668 (UN projection for 2026).
Median age 21.0 — the 48th-lowest of 194 countries.
Under-15 share 34.4% — the 52nd-highest of 194 countries.
Largest generation: Gen Z — 30.6% (31,638)
All generations in Tonga →Population pyramid, 1950 to 2026
Watch how Tonga's population structure evolved from 1950 to 2026
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Sex Ratio & Gender Distribution
Tonga has 89.5 males per 100 females (sex ratio)
Women outnumber men by 5,741 (5.6% of the population).
Male Statistics
- Population:48,775
- Percentage:47.2%
Female Statistics
- Population:54,516
- Percentage:52.8%
- Ratio Format:1:1.118
Sex Ratio Analysis
The sex ratio of Tonga indicates more females than males.
Birth Statistics & Natality Data
Estimated births today
Simulated from the UN WPP 2024 projection of 2,339 births in 2026.
Current Birth Metrics (2026)
Temporal Distribution
Averages from the UN annual births, 2026 projection
Historical Birth Rate Trends, 1950 to 2026
Birth Statistics, 2021 to 2026
| Year | Births | Birth Rate (per 1,000) | TFR (children/woman) | Type |
|---|---|---|---|---|
| 2021 | 2,480 | 23.5 | 3.20 | estimate |
| 2022 | 2,453 | 23.4 | 3.17 | estimate |
| 2023 | 2,418 | 23.1 | 3.13 | estimate |
| 2024 | 2,400 | 23.0 | 3.10 | projection |
| 2025 | 2,365 | 22.8 | 3.07 | projection |
| 2026 | 2,339 | 22.6 | 3.04 | projection |
Historical Analysis
Global Context (2026)
Source: UN WPP 2024: births, birth rate and fertility for 2024 and later are medium-variant projections; 1950–2023 are estimates. The live counter is a uniform simulation of the 2026 projection (2,339 births), not a real-time feed.
Median Age Analysis
Tonga's median age is 21.0 years
Half the population is younger than 21.0 years, half is older — indicating a very young society
Complete Age Distribution & Youth Demographics
| Age Group | Population | % | Category |
|---|---|---|---|
| 0-4 | 11,356 | 11.0% | Youth |
| 5-9 | 11,358 | 11.0% | Youth |
| 10-14 | 12,790 | 12.4% | Youth |
| 15-19 | 11,949 | 11.6% | Young Adult |
| 20-24 | 9,944 | 9.6% | Young Adult |
| 25-29 | 6,467 | 6.3% | Working Age |
| 30-34 | 5,103 | 4.9% | Working Age |
| 35-39 | 4,804 | 4.7% | Working Age |
| 40-44 | 5,143 | 5.0% | Working Age |
| 45-49 | 4,741 | 4.6% | Working Age |
| 50-54 | 4,519 | 4.4% | Working Age |
| 55-59 | 4,541 | 4.4% | Working Age |
| 60-64 | 3,370 | 3.3% | Working Age |
| 65-69 | 2,550 | 2.5% | Senior |
| 70-74 | 1,945 | 1.9% | Senior |
| 75-79 | 1,308 | 1.3% | Senior |
| 80-84 | 817 | 0.8% | Senior |
| 85-89 | 427 | 0.4% | Senior |
| 90-94 | 135 | 0.1% | Senior |
| 95-99 | 22 | 0.0% | Senior |
| 100+ | 2 | 0.0% | Senior |
Demographic Transition Model (DTM) Stage
Stage 3 (falling birth rate): 3.04 children per woman and 22.6 births per 1,000, with a low death rate (6.5). Read more about Stage 3 of the Demographic Transition Model.
Fertility Rate & Birth Statistics
Tonga Total Fertility Rate: 3.04 children per woman
Above the replacement level of 2.1
Fertility Rate Trends
Historical data (solid line) and future projections (dashed line)
Historical Fertility Trends
| Year | Total Fertility Rate | Birth Rate | Change |
|---|---|---|---|
| 2021 | 3.20 | 23.5 | |
| 2022 | 3.17 | 23.4 | ↓0.03 |
| 2023 | 3.13 | 23.1 | ↓0.04 |
| 2024 | 3.10 | 23.0 | ↓0.03 |
| 2025 | 3.07 | 22.8 | ↓0.03 |
| 2026 | 3.04 | 22.6 | ↓0.03 |
Global Context
- • World Average: 2.23 children per woman
- • Comparison: Above global average
- • UN projection for 2030: 2.91
Tonga's total fertility rate is 3.04 children per woman in 2026 (above replacement), above the replacement level of 2.1. Tonga ranks 54 of 194 for fertility rate (1 = highest), in the highest third of countries. The fertility rate has changed by −54.6% since 1950.
Historical Demographic Changes
Between 1950 and 2026, Tonga's population has increased by 108.0%.
The median age has increased from 16.6 in 1950 to 21.0 in 2026, indicating population aging.
Understanding Tonga's Demographics
Tonga has an expansive population pyramid — a broad base of children that narrows steadily toward older ages.
Children under 15 make up 34.4% of the population and people aged 65 and over 7.0%.
The largest five-year age band is 10–14, at 12.4% of the population, compared with 11.0% in the 0–4 band.
Demographic Analysis: Tonga's Population Structure
Demographic Dividend Window
The working-age share is still rising, from 57.5% in 2016 to 58.7% in 2026 (dependency ratio 70.5).
Fertility Transition Stage
Tonga is in a period of above replacement, with a total fertility rate of 3.04 children per woman (2026, UN WPP 2024).
Population Aging Speed
Tonga's median age changed by +0.3 years from 2016 to 2026, slower than the world average (+2.6 years).
Key Demographics
| Total Population | 103,291 |
| Male Population | 48,775(47.2%) |
| Female Population | 54,516(52.8%) |
| Median Age | 21.0 years |
| Sex Ratio | 89.5 males per 100 females |
| Youth (0-14) | 35,504(34.4%) |
| Working Age (15-64) | 60,581(58.7%) |
| Elderly (65+) | 7,206(7.0%) |
| Total Dependency Ratio | 70.5 |
| Youth Dependency Ratio | 58.6 |
| Old Age Dependency Ratio | 11.9 |
| Pyramid Type | Expansive |
Dependency Ratios: Number of dependents per 100 working-age individuals.
Demographic Data Visualizations
Total population, 1950–2026 (UN WPP 2024; 2024 onward are projections).
Median age, 1950–2026 (UN WPP 2024; 2024 onward are projections).
Youth, working-age and elderly shares, 1950 vs 2026 (UN WPP 2024).
Age distribution in 2026: youth, working-age and elderly shares (UN WPP 2024; projection).
Life Expectancy in Tonga
How long the average person in Tonga is expected to live · sourced from UN WPP 2024
Historical Trend, 1950 → 2026 (plus UN projection to 2100)
Solid: actual · Dashed: medium-variant projectionFuture Demographic Trends
Tonga is projected to grow to 105,195 people by 2050 (+1.8% from 2026).
The median age rises from 21.0 in 2026 to 26.5 by 2050.
Tonga's Demographic Evolution by Decade
The population increased by 15.8%, growing from 0.1 million in 1970 to 0.1 million by 1980
The median age increased by 0.7 years, indicating population aging during this period
The youth population share contracted by 2.1 percentage points.
Key Demographic Highlights
- • Population changed from 84K to 98K
- • Growth rate of 15.8% over the decade
- • Median age shifted from 15.6 to 16.3 years (+0.7y)
- • 65+ share changed by +0.3 points; under-15 share by −2.1 points
Frequently Asked Questions About Tonga
How does Tonga rank globally by population?
Tonga ranks 182nd in the world by population with 103,291 people as of 2026.
What does Tonga's age structure reveal about its development?
Tonga's age structure — 34.4% under 15, 58.7% working-age (15–64) and 7.0% aged 65+ — is that of a country in Stage 3 of the demographic transition, with an expansive population pyramid. The median age is 21.0 years.
What is the dependency ratio in Tonga?
Tonga has 70.5 people under 15 or aged 65+ per 100 people aged 15–64 in 2026.
Is Tonga experiencing a demographic dividend?
Tonga is opening its demographic-dividend window. The working-age share is still rising, from 57.5% in 2016 to 58.7% in 2026 (dependency ratio 70.5). The demographic dividend occurs when falling fertility creates a bulge in the working-age population while dependency ratios stay manageable.
What are the gender dynamics in Tonga's population?
Tonga has more females than males, with 89.5 males per 100 females.
Compare with Other Countries
Data Sources & Methodology
All population data is sourced from the United Nations Department of Economic and Social Affairs, Population Division. The data represents UN medium-variant projections.
Cite this page: Population Pyramids. (2026). Tonga Population Pyramid and Demographic Analysis. Retrieved from https://www.populationpyramids.org/tonga
View UN World Population Prospects Data →