Inequality-adjusted Human Development Index in Japan
Japan: Inequality-adjusted Human Development Index was 0.845 in 2023. ▬ Flat
Inequality-adjusted Human Development Index in Japan, 2010–2023
Source: UNDP, Human Development Report (2025) – with minor processing by Our World in Data.
Analysis
The most recent figure for inequality-adjusted human development index in Japan is 0.845, measured in 2023. That is the highest value across all 14 years on record.
That represents a change of up 0.5% on the previous year and up 0.6% over ten years.
Over the whole period, inequality-adjusted human development index in Japan peaked at 0.845 in 2023 and was at its lowest, 0.822, in 2010.
Japan ranks 19th of 163 countries on this measure, in the top quarter.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2010s | 0.8368 | 0.822 | 0.841 | 10 |
| 2020s | 0.8422 | 0.841 | 0.845 | 4 |
Countries ranked near Japan
More poverty & inequality data for Japan
- Number of income/consumption surveys in the past decade available via the World Bank 5 surveys (2025)
- Fertility rate vs. share living in extreme poverty 1.21 live births per woman (2023)
- Cereal yield vs. share in extreme poverty 6,245 kg per hectare (2023)
- Tax revenue as share of GDP vs. income inequality 34.9% (2022)
- Gender Inequality Index 0.059 (2023)
- Lifespan inequality: Gini coefficient in women 0.0703 (2023)
- Lifespan inequality: Gini coefficient by sex 0.0703 (2023)
- Lifespan inequality: Gini coefficient in men 0.0856 (2023)
- Share of government consumption in GDP vs. share of population living in extreme poverty 23.6% (2023)
- Income inequality: Atkinson index 0.1712 (2023)
Frequently asked questions
- What is inequality-adjusted human development index in Japan?
- Inequality-adjusted human development index in Japan was 0.845 in 2023, according to UNDP, Human Development Report (2025) – with minor processing by Our World in Data.
- What is the highest inequality-adjusted human development index recorded in Japan?
- The highest recorded value was 0.845 in 2023.
- What is the lowest inequality-adjusted human development index recorded in Japan?
- The lowest recorded value was 0.822 in 2010.
- How does Japan rank for inequality-adjusted human development index?
- Japan ranks 19th out of 163 countries with data for 2023.
- Is inequality-adjusted human development index rising or falling in Japan?
- Over the last ten years it is up 0.6%. The long-run trend across the full record is flat.
- Where does this Japan data come from?
- The figures come from UNDP, Human Development Report (2025) – with minor processing by Our World in Data, published as part of Inequality-adjusted Human Development Index. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 14 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
The Inequality-adjusted Human Development Index (IHDI) is a summary measure of key dimensions of human development: a long and healthy life, a good education, and a decent standard of living, adjusted for inequalities in these dimensions. Higher values indicate higher and more equal human development.