Reduction in Human Development Index when adjusting for inequalities in Tonga
Tonga: Reduction in Human Development Index when adjusting for inequalities was 11.3% in 2023. ▬ Flat
Latest (2023)
11.3%
Change on year
down 0.7%
World rank
114th
of 166 countries
All-time high
11.5%
in 2019
All-time low
11.3%
in 2023
Years of data
5
2019–2023
Reduction in Human Development Index when adjusting for inequalities in Tonga, 2019–2023
Source: UNDP, Human Development Report (2025) – with minor processing by Our World in Data. Measured in %.
Analysis
In 2023, reduction in human development index when adjusting for inequalities in Tonga stood at 11.3%. That is the lowest value across all 5 years on record.
The figure is down 0.7% on the previous year and down 1.9% over five years.
That places Tonga 114th out of 166 countries with data for 2023, putting it in the middle of the range.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2010s | 11.5% | 11.5% | 11.5% | 1 |
| 2020s | 11.4% | 11.3% | 11.4% | 4 |
Countries ranked near Tonga
- 111 Argentina 12.0% compare
- 112 Israel 11.5% compare
- 113 Bulgaria 11.5% compare
- 115 United States 11.3% compare
- 116 North Macedonia 11.3% compare
- 117 Seychelles 11.0% compare
More reference data data for Tonga
- Universal right to vote in practice 2 (2025)
- Consumer price index 174.32 2010 = 100 (2025)
- Universal right to vote 2 (2025)
- Competitive elections 1 (2025)
- Men's universal right to vote 1 (2025)
- Elected parliament 1 (2025)
- Chief executive of the government is elected 1 (2025)
- Democracy 7 (2025)
- Civil liberties rating 2 (2025)
- Free country 2 (2025)
Frequently asked questions
- What is reduction in human development index when adjusting for inequalities in Tonga?
- Reduction in human development index when adjusting for inequalities in Tonga was 11.3% in 2023, according to UNDP, Human Development Report (2025) – with minor processing by Our World in Data.
- What is the highest reduction in human development index when adjusting for inequalities recorded in Tonga?
- The highest recorded value was 11.5% in 2019.
- What is the lowest reduction in human development index when adjusting for inequalities recorded in Tonga?
- The lowest recorded value was 11.3% in 2023.
- How does Tonga rank for reduction in human development index when adjusting for inequalities?
- Tonga ranks 114th out of 166 countries with data for 2023.
- Where does this Tonga data come from?
- The figures come from UNDP, Human Development Report (2025) – with minor processing by Our World in Data, published as part of Reduction in Human Development Index when adjusting for inequalities. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 5 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Percentage difference between the IHDI value and the HDI value.