What is median age in Tonga?

Median age in Tonga was 20.7 years in 2023, according to UN, World Population Prospects (2024) – processed by Our World in Data.

What is the highest median age recorded in Tonga?

The highest recorded value was 20.92 years in 2019.

What is the lowest median age recorded in Tonga?

The lowest recorded value was 15.57 years in 1975.

How does Tonga rank for median age?

Tonga ranks 189th out of 236 countries with data for 2023.

Is median age rising or falling in Tonga?

Over the last ten years it is up 1.4%. The long-run trend across the full record is rising.

Where does this Tonga data come from?

The figures come from UN, World Population Prospects (2024) – processed by Our World in Data, published as part of Median age. Statizoid updates them automatically from the source API.

Median age in Tonga

Name: Median age in Tonga
Creator: UN, World Population Prospects (2024) – processed by Our World in Data
License: CC BY 4.0 (Our World in Data)

Tonga: Median age was 20.7 years in 2023. ▲ Rising

Latest (2023)

20.7 years

Change on year

down 0.1%

World rank

189th

of 236 countries

All-time high

20.92 years

in 2019

All-time low

15.57 years

in 1975

Years of data

1950–2023

Median age in Tonga, 1950–2023

Source: UN, World Population Prospects (2024) – processed by Our World in Data. Measured in years.

Analysis

Tonga recorded 20.7 years for median age in 2023.

Compared with earlier readings it is down 0.1% on the previous year and up 1.4% over ten years.

Over the whole period, median age in Tonga peaked at 20.92 years in 2019 and was at its lowest, 15.57 years, in 1975.

That places Tonga 189th out of 236 countries with data for 2023, putting it in the bottom quarter.

The long-run direction has been consistently rising across the 74 years of available data.

Averages by decade

Decade	Average	Lowest	Highest	Years
1950s	16.27 years	16 years	16.59 years	10
1960s	15.88 years	15.64 years	15.97 years	10
1970s	15.68 years	15.57 years	16.1 years	10
1980s	16.97 years	16.27 years	17.89 years	10
1990s	18.59 years	18.12 years	19.11 years	10
2000s	19.73 years	19.3 years	20.1 years	10
2010s	20.55 years	20.13 years	20.92 years	10
2020s	20.78 years	20.7 years	20.89 years	4

Countries ranked near Tonga

186 Namibia 20.96 years compare
187 Ghana 20.93 years compare
188 Marshall Islands 20.7 years compare
190 Nauru 20.43 years compare
191 Iraq 20.34 years compare
192 Comoros 20.33 years compare

See the full ranking of 236 places →

More reference data data for Tonga

Number of child deaths per woman 0.0318 under-five deaths per woman (2024)
Fertility rate vs. Human Development Index 3.13 live births per woman (2023)
Fertility rate: births per woman 3.13 live births per woman (2023)
Fertility rate: births per woman 3.13 live births per woman (2023)
Human Development Index 0.769 (2023)
Rule of Law - Governance estimate 0.6943 approx. -2.5 to +2.5 (2024)
Rule of Law - Governance score 68.91 0-100 (2024)
Voice and Accountability - Governance score 71.21 0-100 (2024)
Voice and Accountability - Governance estimate 0.8207 approx. -2.5 to +2.5 (2024)
Political Stability - Governance estimate 1.25 approx. -2.5 to +2.5 (2024)

All data for Tonga →

Frequently asked questions

What is median age in Tonga?: Median age in Tonga was 20.7 years in 2023, according to UN, World Population Prospects (2024) – processed by Our World in Data.
What is the highest median age recorded in Tonga?: The highest recorded value was 20.92 years in 2019.
What is the lowest median age recorded in Tonga?: The lowest recorded value was 15.57 years in 1975.
How does Tonga rank for median age?: Tonga ranks 189th out of 236 countries with data for 2023.
Is median age rising or falling in Tonga?: Over the last ten years it is up 1.4%. The long-run trend across the full record is rising.
Where does this Tonga data come from?: The figures come from UN, World Population Prospects (2024) – processed by Our World in Data, published as part of Median age. Statizoid updates them automatically from the source API.

Download this data

CSV · JSON — 74 observations, free to reuse under CC BY 4.0 (Our World in Data).

About this data

Indicator: Median age
Unit: years
Source: UN, World Population Prospects (2024) – processed by Our World in Data
Licence: CC BY 4.0 (Our World in Data)
Coverage: 236 places, 17,464 data points, 1950–2023
Last refreshed: 06 August 2026

The age that divides the population into two halves of equal size — half are younger and half are older.