Tonga: Population ages 0-14, female

Key figures

What the numbers say

In 2025, Tonga's population ages 0-14, female fell 1.7% on 2024 (from 17,813 to 17,516).

Across the 30 yearly changes before that (1995 to 2024), the average change was −0.3% and a typical year strayed about 0.6% from that (the standard deviation). This year's change was 2.6 standard deviations below that average, so it was unusually large compared with the rest of the record.

On record, the biggest yearly rise was 2.9% in 1961 and the biggest yearly fall was 1.7% in 2025. The numbers show how large and when, not why; for the cause, look at what happened in that country in those years.

From 2016 to 2025 the straight-line trend is downward, about 128.76 a year. A straight line explains 96% of the movement over 10 observed years.

Worked out from the yearly values above. How the checks work: standard deviation, z-scores and straight-line trends.

A straight-line projection, tested first

Extending that straight line gives about 17,294 for 2028. We show this only because the same method, fitted on earlier years, predicted 2023 to 2025 better than "no change" would have: its average miss was 105.33, against 349.67 for assuming no change. Treat it as a continuation of the recent pattern, not a forecast of events: it cannot see a recession, a policy change or a revision to the data.

See how a linear trend forecast works and the guide on forecasting without fooling yourself.

How it compares

In 2025, Tonga had the 185th highest value of the 217 economies reporting that year. Higher is not always better: for some indicators the lowest value is the one to aim for. See the full ranking.

Closest to Tonga in the 2025 ranking

• Barbados — 182nd of 217: 23,719
• Kiribati — 183rd of 217: 23,039
• Guam — 184th of 217: 21,146
• Micronesia, Fed. Sts. — 186th of 217: 17,340
• St. Lucia — 187th of 217: 15,327
• Seychelles — 188th of 217: 11,846

What this measures

Female population between the ages 0 to 14. Population is based on the de facto definition of population, which counts all residents regardless of legal status or citizenship.

Regional and income-group figures are computed by the World Bank as a sum.

All 66 values

Population ages 0-14, female in nearby economies

• American Samoa — 6,017 (2025)
• Australia — 2.37 million (2025)
• Brunei Darussalam — 46,245 (2025)
• Cambodia — 2.58 million (2025)
• China — 101.3 million (2025)
• Fiji — 122,627 (2025)
• French Polynesia — 25,212 (2025)
• Guam — 21,146 (2025)
• Hong Kong SAR, China — 378,989 (2025)
• Indonesia — 33.72 million (2025)
• Japan — 6.75 million (2025)

More health data for Tonga

• Population ages 00-04, female (% of female population) — 10.14% (2025)
• Population ages 00-04, male (% of male population) — 12.24% (2025)
• Population ages 0-14, female (% of female population) — 32% (2025)
• Population ages 0-14, male — 18,710 (2025)
• Population ages 0-14, male (% of male population) — 38.18% (2025)
• Population ages 0-14, total — 36,226 (2025)
• Population ages 0-14 (% of total population) — 34.92% (2025)
• Population ages 05-09, female (% of female population) — 10.35% (2025)
• Population ages 05-09, male (% of male population) — 12.36% (2025)

Reading data like this

• Where to find free public data, and how to check it before you trust it — 2 min read
• Data analysis examples: 6 worked from one dataset — 3 min read
• Real change or random noise? A plain guide to reading your numbers — 2 min read

Questions people ask

What is Tonga's population ages 0-14, female?

17,516 in 2025, according to the World Bank (World Development Indicators).

How has it changed since 1960?

It is up 18.1% from 14,832 in 1960 (0.26% a year on average, compounded). The highest value was 21,390 in 1977 and the lowest 14,832 in 1960.

How does Tonga rank?

185th highest of 217 economies with data for 2025.

Source

World Bank, World Development Indicators, indicator SP.POP.0014.FE.IN, licensed CC BY 4.0. Original source: World Population Prospects, United Nations (UN), publisher: UN Population Division; Staff estimates, World Bank (WB) Figures are fetched from the World Bank API and refreshed monthly; see the series on data.worldbank.org. The full definition and method are in the World Bank's metadata glossary. Comparisons use the same World Bank release.

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